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• How do I get 5.1 surround sound working on an Acer Aspire 5738ZG?

  - by kbargais_LV

  I got a problem with sound. I tried everything but no results. :( I got 3 sound ports. my daemon: # This file is part of PulseAudio. # # PulseAudio is free software; you can redistribute it and/or modify # it under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # PulseAudio is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU Lesser General Public License # along with PulseAudio; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 # USA. ## Configuration file for the PulseAudio daemon. See pulse-daemon.conf(5) for ## more information. Default values are commented out. Use either ; or # for ## commenting. ; daemonize = no ; fail = yes ; allow-module-loading = yes ; allow-exit = yes ; use-pid-file = yes ; system-instance = no ; local-server-type = user ; enable-shm = yes ; shm-size-bytes = 0 # setting this 0 will use the system-default, usually 64 MiB ; lock-memory = no ; cpu-limit = no ; high-priority = yes ; nice-level = -11 ; realtime-scheduling = yes ; realtime-priority = 5 ; exit-idle-time = 20 ; scache-idle-time = 20 ; dl-search-path = (depends on architecture) ; load-default-script-file = yes ; default-script-file = /etc/pulse/default.pa ; log-target = auto ; log-level = notice ; log-meta = no ; log-time = no ; log-backtrace = 0 resample-method = speex-float-1 ; enable-remixing = yes ; enable-lfe-remixing = no flat-volumes = no ; rlimit-fsize = -1 ; rlimit-data = -1 ; rlimit-stack = -1 ; rlimit-core = -1 ; rlimit-as = -1 ; rlimit-rss = -1 ; rlimit-nproc = -1 ; rlimit-nofile = 256 ; rlimit-memlock = -1 ; rlimit-locks = -1 ; rlimit-sigpending = -1 ; rlimit-msgqueue = -1 ; rlimit-nice = 31 ; rlimit-rtprio = 9 ; rlimit-rttime = 1000000 ; default-sample-format = s16le ; default-sample-rate = 44100 ; default-sample-channels = 6 ; default-channel-map = front-left,front-right default-fragments = 8 default-fragment-size-msec = 10 ; enable-deferred-volume = yes ; deferred-volume-safety-margin-usec = 8000 ; deferred-volume-extra-delay-usec = 0

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• Ubuntu 12.04 Hp G72 Problem Installing proprietary wireless driver

  - by user69402

  I have a fresh Ubuntu 12.04 installed on HP G72 machine. In order for my wireless to work I need the proprietary driver installed - Broadcom STA wireless driver. Trying to install it from the System Settings gives me the error: "Sorry, installation of this driver failed. Please have a look at the log file for details: /var/log/jockey.log". So far I suspect the error to be caused by the bad "bcmwl-kernel-source" installation. What i tried: 1. remove "bcmwl-kernel-source" 2. install "bcmwl-kernel-source" installation through the terminal ends with "error code (1)". I would greatly appreciate any help Here is everything that the terminal returns: Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: bcmwl-kernel-source 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B/1,151 kB of archives. After this operation, 3,514 kB of additional disk space will be used. Selecting previously unselected package bcmwl-kernel-source. (Reading database ... 170331 files and directories currently installed.) Unpacking bcmwl-kernel-source (from .../bcmwl-kernel-source_5.100.82.38+bdcom-0ubuntu6.1_amd64.deb) ... Setting up bcmwl-kernel-source (5.100.82.38+bdcom-0ubuntu6.1) ... Loading new bcmwl-5.100.82.38+bdcom DKMS files... /usr/sbin/dkms: line 467: unset: POST_REMOVE$PRE_BUMLD': not a valid identifier /usr/sbin/dkms: line 467: unset:BUILD_E\CLUWIVE_ARCH': not a valid identifier /usr/sbin/dkms: line 467: unset: $': not a valid identifier /usr/sbin/dkms: line 467: unset:$': not a valid identifier /usr/sbin/dkms: line 467: unset: modules_conf_arra}': not a valid identifier /usr/sbin/dkms: line 467: unset:$': not a valid identifier /usr/sbin/dkms: line 467: unset: $': not a valid identifier /usr/sbin/dkms: line 467: unset:$': not a valid identifier /usr/sbin/dkms: line 467: unset: $': not a valid identifier /usr/sbin/dkms: line 467: unset:$': not a valid identifier /usr/sbin/dkms: line 467: unset: `$': not a valid identifier /usr/sbin/dkms: line 419: ${!POST_REMOVE$PRE_BUMLD[@]}: bad substitution /usr/sbin/dkms: line 419: ${!BUILD_E\CLUWIVE_ARCH[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution /usr/sbin/dkms: line 419: ${!$[@]}: bad substitution malloc: ../bash/subst.c:3671: assertion botched free: start and end chunk sizes differ Aborting.../tmp/tmp.pEXTnftUfI: line 4: modules_conf_arra}[[@]}]=[[@]}]}: command not found dkms.conf: Error! No 'DEST_MODULE_LOCATION' directive specified for record #0. dkms.conf: Error! Directive 'DEST_MODULE_LOCATION' does not begin with '/kernel', '/updates', or '/extra' in record #0. dkms.conf: Error! No 'PACKAGE_VERSION' directive specified. Error! Bad conf file. File: /usr/src/bcmwl-5.100.82.38+bdcom/dkms.conf does not represent a valid dkms.conf file. dpkg: error processing bcmwl-kernel-source (--configure): subprocess installed post-installation script returned error exit status 8 Errors were encountered while processing: bcmwl-kernel-source E: Sub-process /usr/bin/dpkg returned an error code (1)

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• Memory is full with vertex buffer

  - by Christian Frantz

  I'm having a pretty strange problem that I didn't think I'd run into. I was able to store a 50x50 grid in one vertex buffer finally, in hopes of better performance. Before I had each cube have an individual vertex buffer and with 4 50x50 grids, this slowed down my game tremendously. But it still ran. With 4 50x50 grids with my new code, that's only 4 vertex buffers. With the 4 vertex buffers, I get a memory error. When I load the game with 1 grid, it takes forever to load and with my previous version, it started up right away. So I don't know if I'm storing chunks wrong or what but it stumped me -.- for (int x = 0; x < 50; x++) { for (int z = 0; z < 50; z++) { for (int y = 0; y <= map[x, z]; y++) { SetUpVertices(); SetUpIndices(); cubes.Add(new Cube(device, new Vector3(x, map[x, z] - y, z), grass)); } } } vertexBuffer = new VertexBuffer(device, typeof(VertexPositionTexture), vertices.Count(), BufferUsage.WriteOnly); vertexBuffer.SetData<VertexPositionTexture>(vertices.ToArray()); indexBuffer = new IndexBuffer(device, typeof(short), indices.Count(), BufferUsage.WriteOnly); indexBuffer.SetData(indices.ToArray()); Thats how theyre stored. The array I'm reading from is a byte array which defines the coordinates of my map. Now with my old version, I used the same loading from an array so that hasn't changed. The only difference is the one vertex buffer instead of 2500 for a 50x50 grid. cubes is just a normal list that holds all my cubes for the vertex buffer. Another thing that just came to mind would be my draw calls. If I'm setting an effect for each cube in my cube list, that's probably going to take a lot of memory. How can I avoid doing this? I need the foreach method to set my cubes to the right position foreach (Cube block in cube.cubes) { effect.VertexColorEnabled = false; effect.TextureEnabled = true; Matrix center = Matrix.CreateTranslation(new Vector3(-0.5f, -0.5f, -0.5f)); Matrix scale = Matrix.CreateScale(1f); Matrix translate = Matrix.CreateTranslation(block.cubePosition); effect.World = center * scale * translate; effect.View = cam.view; effect.Projection = cam.proj; effect.FogEnabled = false; effect.FogColor = Color.CornflowerBlue.ToVector3(); effect.FogStart = 1.0f; effect.FogEnd = 50.0f; cube.Draw(effect); noc++; }

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• Asus X202e VivoBook, dual boot. How to get around UEFI and have Win8 & Ubuntu?

  - by Nukeface

  I've gotten my hands on an Asus Vivobook X202e. I like it, handy to use, small, etc etc. Oh, it's the i3 core version. For school I still need Windows * sigh * for the .NET development. (I know, possible in Ubuntu, this n that, but for ease atm wanting to keep it with Win8). So. How to install both on this little thing? I've found a way into the BIOS (before splash screen, mash F2. Works only after reboot, not cold boot). But the whole boot loading setup is different than from what I know, and I must've messed up something because it's been "Attempting Repairs", "Analyzing hard disk", and a bunch of other things for the past 15 minutes. (All I've done is selected "disabled" on secure boot, picky as ** Microsoft). Keeping the original Windows installation is of no concern. Found the product key already and have a clean install waiting. BTW, not trying to leech knowledge, even though first question and no answers. I'm more and more active on Stackoverflow. But, especially due to secure boot and windows 8, I'm going over to Ubuntu. Well, more and more anyway, I like my Windows based games as well ;) UPDATE Managed to do a clean install of Windows 8 Pro. After disabling Secure Boot, also had to disable fast boot, and enable Launch CSM, leaving the option which appeared (Launch PXE OpROM) disabled. Then I rebooted, with the USB Boot drive I created using the Windows 7 USB DVD Download Tool (scroll down for download link), provided by Microsoft. During the installation, I chose to install a clean version, therefor deleted the partitions containing current windows files. I left the Recovery partition (you never know...). Of course, the new Windows Installation dit not like this. Apparantly Windows cannot be installed on a GPT hard disk. Remember I hadn't changed the partition table, was still factory default! Minus a few partitions, granted. So deleted ALL partittions, did a format of the disk, created a new partition. Et voila, Windows installation started. FINALLY! WONDROUS After the installation, Windows still had background images located in C:/Users/ ME /AppData/Local/Microsoft/Themes/RoamedThemeFiles/DesktopBackground/ that I had in the previous installation. Before doing: format, delete partition, cascade partitions, create new partition of different size, format partition, install Windows. It managed to keep the images through all that. Anyone got an idea on that one? It also remembered the settings for the Windows Aero theme... UPDATED QUESTION: After all this you'd think I'd have the rest figured out. Wrong. Ubuntu 12.10, 64 bit installation can't read the partitioning of the hdd during the installation. Any ideas on how to fix this so the install for a dual-boot system can proceed? (Preferably without starting anew with Windows as well ;) )

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• Making user input/math on data fast, unlike excel type programs

  - by proGrammar

  I'm creating a research platform solely for myself to do some research on data. Programs like excel are terribly slow for me so I'm trying to come up with another solution. Originally I used excel. A1 was the cell that contained the data and all other cells in use calculated something on A1, or on other cells, that all could be in the end traced to A1. A1 was like an element of an array, I then I incremented it to go through all my data. This was way too slow. So the only other option I found originally was to hand code in c# the calculations inside a loop. Then I simply recompiled each time I changed my math. This was terribly slow to do and I had to order everything correctly so things would update correctly (dependencies). I could have also used events, but hand coding events for each cell like calculation would also be very slow. Next I created an application to read Excel and to perfectly imitate it. Which is what I now use. Basically I write formulas onto a fraction of my data to get live results inside excel. Then my program reads excel, writes another c# program, compiles it, and runs that program which runs my excel created formulas through a lot more data a whole lot faster. The advantage being my application dependency sorts everything (or I could use events) so I don't have to (like excel does) And of course the speed. But now its not a single application anymore. Instead its 2 applications, one which only reads my formulas and writes another program. The other one being the result which only lives for a short while before I do other runs through my data with different formulas / settings. So I can't see multiple results at one time without introducing even more programs like a database or at least having the 2 applications talking to each other. My idea was to have a dll that would be written, compiled, loaded, and unloaded again and again. So a self-updating program, sort of. But apparently that's not possible without another appdomain which means data has to be marshaled to be moved between the appdomains. Which would slow things down, not for summaries, but for other stuff I need to do with all my data. I'm also forgetting to mention a huge problem with restarting an application again and again which is having to reload ALL my data into memory again and again. But its still a whole lot faster than excel. I'm really super puzzled as to what people do when they want to research data fast. I'm completely unable to have a program accept user input and having it fast. My understanding is that it would have to do things like excel which is to evaluate strings again and again. So my only option is to repeatedly compile applications. Do I have a correct understanding on computer science? I've only just began programming, and didn't think I would have to learn much to do some simple math on data. My understanding is its either compiling my user defined stuff to a program or evaluating them from a string or something stupid again and again. And my only option is to probably switch operating systems or something to be able to have a program compile and run itself without stopping (writing/compiling dll, loading dll to program, unloading, and repeating). Can someone give me some idea on how computers work? Is anything better possible? Like a running program, that can accept user input and compile it and then unload it later? I mean heck operating systems dont need to be RESTARTED with every change to user input. What is this the cave man days? Sorry, it's just so super frustrating not knowing what one can do, and can't do. If only I could understand and learn this stuff fast enough.

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• Data Formatters temporarily unavailable

  - by iphone newbie

  I'm currently working on an iPhone app. This app has a login screen, also a signup screen. After the user has successfully signed up, I dismiss the signup view, then the app automatically logs in using the created account. After which, the login view is dismissed, showing the main view. I'm trying to modify this by immediately dismissing the login view, since I already have the account details of the user when the signup is successful. Basically, the ideal flow is: after the user successfully signs up, I save the username and password in a singleton class, then dismiss the signup view. When I get to the parent view (which is the login screen), I have a variable that checks if there was a successful signup. If that variable is true, I want to immediately dismiss the login view. However, I come across this error message: Data Formatters temporarily unavailable, will re-try after a 'continue'. (Unknown error loading shared library "/Developer/usr/lib/libXcodeDebuggerSupport.dylib") I'm not really sure why this happens. I have no problems dismissing the login view when I go through the actual login procedure - which of course also dismisses the login view if the user inputs a correct username and password. I'm not exactly sure, but I'm starting to think that the iPhone cannot handle dismissing 2 view controllers almost at the same time. Is it possible that I'm dismissing the login view too quickly? Is that a factor? Is there anyway for me to be able to dismiss 2 view controllers almost simultaneously without coming across this error message?

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• Ext JS Tab Panel - Dynamic Tabs - Tab Exists Not Working

  - by Joey Ezekiel

  Hi Would appreciate if somebody could help me on this. I have a Tree Panel whose nodes when clicked load a tab into a tab panel. The tabs are loading alright, but my problem is duplication. I need to check if a tab exists before adding it to the tab panel. I cant seem to have this resolved and it is eating my brains. This is pretty simple and I have checked stackoverflow and the EXT JS Forums for solutions but they dont seem to work for me or I'm being blind. This is my code for the tree: var opstree = new Ext.tree.TreePanel({ renderTo: 'opstree', border:false, width: 250, height: 'auto', useArrows: false, animate: true, autoScroll: true, dataUrl: 'libs/tree-data.json', root: { nodeType: 'async', text: 'Tool Actions' }, listeners: { render: function() { this.getRootNode().expand(); } } }) opstree.on('click', function(n){ var sn = this.selModel.selNode || {}; // selNode is null on initial selection renderPage(n.id); }); function renderPage(tabId) { var TabPanel = Ext.getCmp('content-tab-panel'); var tab = TabPanel.getItem(tabId); //Ext.MessageBox.alert('TabGet',tab); if(tab){ TabPanel.setActiveTab(tabId); } else{ TabPanel.add({ title: tabId, html: 'Tab Body ' + (tabId) + '', closable:true }).show(); TabPanel.doLayout(); } } }); and this is the code for the Tab Panel new Ext.TabPanel({ id:'content-tab-panel', region: 'center', deferredRender: false, enableTabScroll:true, activeTab: 0, items: [{ contentEl: 'about', title: 'About the Billing Ops Application', closable: true, autoScroll: true, margins: '0 0 0 0' },{ contentEl: 'welcomescreen', title: 'PBRT Application Home', closable: false, autoScroll: true, margins: '0 0 0 0' }] }) Can somebody please help?

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• WPF MVVM ComboBox SelectedItem or SelectedValue not working

  - by cjibo

  Update After a bit of investigating. What seems to be the issue is that the SelectedValue/SelectedItem is occurring before the Item source is finished loading. If I sit in a break point and weight a few seconds it works as expected. Don't know how I'm going to get around this one. End Update I have an application using in WPF using MVVM with a ComboBox. Below is the ViewModel Example. The issue I'm having is when we leave our page and migrate back the ComboBox is not selecting the current Value that is selected. View Model public class MyViewModel { private MyObject _selectedObject; private Collection<Object2> _objects; private IModel _model; public MyViewModel(IModel model) { _model = model; _objects = _model.GetObjects(); } public Collection<MyObject> Objects { get { return _objects; } private set { _objects = value; } } public MyObject SelectedObject { get { return _selectedObject; } set { _selectedObject = value; } } } For the sake of this example lets say MyObject has two properties (Text and Id). My XAML for the ComboBox looks like this. XAML <ComboBox Name="MyComboBox" Height="23" Width="auto" SelectedItem="{Binding Path=SelectedObject,Mode=TwoWay}" ItemsSource="{Binding Objects}" DisplayMemberPath="Text" SelectedValuePath="Id"> No matter which way I configure this when I come back to the page and the object is reassembled the ComboBox will not select the value. The object is returning the correct object via the get in the property though. I'm not sure if this is just an issue with the way the ComboBox and MVVM pattern works. The text box binding we are doing works correctly.

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• WPF MVVM UserControl Binding "Container", dispose to avoid memory leak.

  - by user178657

  For simplicity. I have a window, with a bindable usercontrol <UserControl Content="{Binding Path = BindingControl, UpdateSourceTrigger=PropertyChanged}"> I have two user controls, ControlA, and ControlB, Both UserControls have their own Datacontext ViewModel, ControlAViewModel and ControlBViewModel. Both ControlAViewModel and ControlBViewModel inh. from a "ViewModelBase" public abstract class ViewModelBase : DependencyObject, INotifyPropertyChanged, IDisposable........ Main window was added to IoC... To set the property of the Bindable UC, i do ComponentRepository.Resolve<MainViewWindow>().Bindingcontrol= new ControlA; ControlA, in its Datacontext, creates a DispatcherTimer, to do "somestuff".. Later on., I need to navigate elsewhere, so the other usercontrol is loaded into the container ComponentRepository.Resolve<MainViewWindow>().Bindingcontrol= new ControlB If i put a break point in the "someStuff" that was in ControlA's datacontext. The DispatcherTimer is still running... i.e. loading a new usercontrol into the bindable Usercontrol on mainwindow does not dispose/close/GC the DispatcherTimer that was created in the DataContext View Model... Ive looked around, and as stated by others, dispose doesnt get called because its not supposed to... :) Not all my usercontrols have DispatcherTimer, just a few that need to do some sort of "read and refresh" updates./. Should i track these DispatcherTimer objects in the ViewModelBase that all Usercontrols inh. and manually stop/dispose them everytime a new usercontrol is loaded? Is there a better way?

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• ASP.NET websites under IIS 7.5 (Windows 7) running extremely slow

  - by emzero

  I've just installed Windows 7 x64 Ultimate on my desktop PC. I installed IIS, Visual Studio 2008, registered ASP.NET, etc. I have this ASP.NET 3.5 website I'm working on running EXTREMELY slow on this new IIS. On STA and PROD servers (Windows 2003 Server) and on my old XP/IIS 5.1 everything runs smoothly. A page which usually takes 1-2 seconds to load is taking 8 seconds!!! I saw this post on IIS forum. It says something about Vista/7 not pooling connections (just to let you know, the website is running locally but it's connecting to a SQL Server 2005 hosted on a remote server). It seems that it takes a while to "start loading" the page... I mean, I click refresh and it stays for several seconds "Waiting for localhost"... Then when it gets response it loads the whole page normally... I don't have a clue how to force Win7/IIS7.5 to pool database connections. EDIT: I've created a new empty ASP.NET web application to see if the problems happens too. The answer is no, it responds fast as it should with an empty default page. Maybe is something related to the DB connection. I will do a further test. It should be a way to fix it... EDIT 2: Debugging the app I noticed that the delay occurs AFTER the execution of .NET code (Page_Load, etc)... so the delay seems to be somewhere when IIS serves the page to the browser.

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• XamlParseException using Silverlight Toolkit control in Expression Blend

  - by Dan Auclair

  I am having a strange issue opening up my UserControl in Expression Blend when using a Silverlight Toolkit control. My UserControl uses the toolkit's ListBoxDragDropTarget as follows: <controlsToolkit:ListBoxDragDropTarget mswindows:DragDrop.AllowDrop="True" HorizontalContentAlignment="Stretch" VerticalContentAlignment="Stretch"> <ListBox ItemsSource="{Binding MyItemControls}" ScrollViewer.HorizontalScrollBarVisibility="Disabled"> <ListBox.ItemsPanel> <ItemsPanelTemplate> <controlsToolkit:WrapPanel/> </ItemsPanelTemplate> </ListBox.ItemsPanel> </ListBox> </controlsToolkit:ListBoxDragDropTarget> Everything works as expected at runtime and looks fine in Visual Studio 2008. However, when I try to open my UserControl in Blend I get XamlParseException: [Line: 0 Position: 0] and I can not see anything in the design view. More specifically Blend complains: The element "ListBoxDragDropTarget" could not be displayed because of a problem with System.Windows.Controls.ListBoxDragDropTarget: TargetType mismatch. My silverlight application is referencing System.Windows.Controls.Toolkit from the Nov. 2009 toolkit release, and I've made sure to include these namespace declarations for the ListBoxDragDropTarget: xmlns:controlsToolkit="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Toolkit" xmlns:mswindows="clr-namespace:Microsoft.Windows;assembly=System.Windows.Controls.Toolkit" If I comment out the ListBoxDragDropTarget control wrapper and just leave the ListBox I can see everything fine in the design view without errors. Furthermore, I realized this is happening with a variety of Silverlight Toolkit controls because if I comment out ListBoxDragDropTarget and replace it with <controlsToolkit:BusyIndicator /> the same exact error occurs in Blend. What is even weirder is that if I start a brand new silverlight application in blend I can add these toolkit elements without any kind of error, so it seems like something dumb that is happening with my project references to the toolkit assemblies. I'm pretty sure this has something to do with loading the default styles for the toolkit controls from its generic.xaml, since the error has to do with the TargetType and Blend is probably trying to load up the default styles. Has anyone encountered this issue before or have any ideas as to what may be my problem?

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• NullPointerException when showing JFileChooser

  - by Geo

  I show a JFileChooser with this snippet: public File getDestination() { JFileChooser chooser = new JFileChooser(); chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY); int option = chooser.showSaveDialog(null); if(option == JFileChooser.APPROVE_OPTION) { return chooser.getSelectedFile().getAbsolutePath(); } return new File("."); } Usually, the first time it's showed, it displays & works correctly. The second time, it will always throw this exception: Exception in thread "Basic L&F File Loading Thread" java.lang.NullPointerException at sun.awt.shell.Win32ShellFolder2.pidlsEqual(Unknown Source) at sun.awt.shell.Win32ShellFolder2.equals(Unknown Source) at sun.awt.shell.Win32ShellFolderManager2.isFileSystemRoot(Unknown Source) at sun.awt.shell.ShellFolder.isFileSystemRoot(Unknown Source) at javax.swing.filechooser.FileSystemView.isFileSystemRoot(Unknown Source) at javax.swing.filechooser.WindowsFileSystemView.isTraversable(Unknown Source) at javax.swing.JFileChooser.isTraversable(Unknown Source) at javax.swing.plaf.basic.BasicDirectoryModel$LoadFilesThread.run0(Unknown Source) at javax.swing.plaf.basic.BasicDirectoryModel$LoadFilesThread.run(Unknown Source) Java -version says: java version "1.6.0_20" Java(TM) SE Runtime Environment (build 1.6.0_20-b02) Java HotSpot(TM) Client VM (build 16.3-b01, mixed mode, sharing) And the thread I found here says I should downgrade the Java version. Should I follow their advice, or is there something I could have done wrong?

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• getJSON not working if the mvc model view controller has a parameter

  - by Paul

  I'm having an issue with a callback. I'm not even getting an error in Firebug. If I alert before and after the getjson call both alerts show but the getjson call doesn't fire. public ActionResult TestPage() { return View(); } public ActionResult LoadMapLonLats(int mapId) { //some code return Json(_myMaps); } $("#Search").click(function() { $.getJSON("LoadMapLonLats", { mapId: 73 }, loadDbMap); }); function loadDbMap(maps) { alert('m'); $.each(maps, function(i) { alert(maps[i]); }); } As long as I leave TestPage without a parameter is works. If I add a parameter to TestPage(int id) then the call back to LoadMapLonLats doesn't work. Seems odd. Of course TestPage is the page I'm loading so I need to do some work here before rendering the page. Not sure why adding a parameter to the view would break the callback to another function. //this breaks he callback to LoadMapLonLats public ActionResult TestPage(int id) { return View(); } Any ideas? Seems like this may be related, if not sorry I can post a new thread.

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• How to test Rails 3 Engines with Cucumber & Rspec?

  - by cowboycoded

  I apologize if this question is slightly subjective... I am trying to figure out the best way to test Rails 3 Engines with Cucumber & Rspec. In order to test the engine a rails 3 app is necessary. Here is what I am currently doing: Add a rails test app to the root of the gem (myengine) by running: rails new /myengine/rails_app Add Cucumber to /myengine/rails_app/features as you would in a normal Rails app Require the Rails Engine Gem (using :path=>"/myengine") in /myengine/rails_app/Gemfile Add spec to the root directory of the gem: /myengine/spec Include the fixtures in /myengine/spec/fixtures and I add the following to my cuc env.rb: env.rb: Fixtures.reset_cache fixtures_folder = File.join(Rails.root, 'spec', 'fixtures') fixtures = Dir[File.join(fixtures_folder, '*.yml')].map {|f| File.basename(f, '.yml') } Fixtures.create_fixtures(fixtures_folder, fixtures) Do you see any problems with setting it up like this? The tests run fine, but I am a bit hesitant to put the features inside the test rails app. I originally tried putting the features in the root of the gem and I created the test rails app inside features/support, but for some reason my engine would not initialize when I ran the tests, even though I could see the app loading everything else when cuc ran. If anyone is working with Rails Engines and is using cuc and rspec for testing, I would be interested to hear your setup.

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• managing images in an iphone/ipad universal app

  - by taber

  Hi, I'm just curious as to what methods people are using to dynamically use larger or smaller images in their universal iPhone/iPad apps. I created a large test image and I tried scaling down (using cocos2d) by 0.46875. After viewing that in the iPhone 4.0 simulator I found the results were pretty crappy... rough pixel edges, etc. Plus, loading huge image files for iPhone users when they don't need them is pretty lame. So I guess what I will probably have to do is save out two versions of every sprite... large (for the iPad side) and small (for iPhone/iPod Touch) then detect the user's device and spit out the proper sprite like so: NSString *deviceType = [UIDevice currentDevice].model; CCSprite *test; if([deviceType isEqualToString:@"iPad"]) { test = [CCSprite spriteWithFile:@"testBigHuge.png"]; } else { test = [CCSprite spriteWithFile:@"testRegularMcTiny.png"]; } [self addChild: test]; How are you guys doing this? I'd rather avoid sprinkling all of my code with if statements like this. I want to also avoid using .xib files since it's an OpenGL-based app. Thanks!

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• PDF rendering crashes app Core Graphics

  - by Felixyz

  EDIT: The memory leaks turned out to be unrelated to the crashes. Leaks are fixed but crashes remain, still mysterious. My (iPhone) app does lots of PDF loading and rendering, some of it threaded. Sometime, it seems always after I flush a page cash after getting a memory warning, the app crashes with a bad access when trying to draw a pdf page stored in an NSData object. Here is one example trace: #0 0x3016d564 in CGPDFResourcesGetResource () #1 0x3016d58a in CGPDFResourcesGetResource () #2 0x3016d94e in CGPDFResourcesGetExtGState () #3 0x3015fac4 in CGPDFContentStreamGetExtGState () #4 0x301629a8 in op_gs () #5 0x3016df12 in handle_xname () #6 0x3016dd9e in read_objects () #7 0x3016de6c in CGPDFScannerScan () #8 0x30161e34 in CGPDFDrawingContextDraw () #9 0x3016a9dc in CGContextDrawPDFPage () But sometimes I get this instead: Program received signal: “EXC_BAD_ACCESS”. (gdb) bt #0 0x335625fa in objc_msgSend () #1 0x32c04eba in CFDictionaryGetValue () #2 0x3016d500 in get_value () #3 0x3016d5d6 in CGPDFResourcesGetFont () #4 0x3015fbb4 in CGPDFContentStreamGetFont () #5 0x30163480 in op_Tf () #6 0x3016df12 in handle_xname () #7 0x3016dd9e in read_objects () #8 0x3016de6c in CGPDFScannerScan () #9 0x30161e34 in CGPDFDrawingContextDraw () #10 0x3016a9dc in CGContextDrawPDFPage () Is this an indication that I've mistakenly deallocated an object? It's hard for me to decode what's happening here. This is how I create and retain the various objects involved: // Some data was just loaded from the network and is pointed to by "data" self.pdfData = data; _dataProviderRef = CGDataProviderCreateWithData( NULL, [_pdfData bytes], [_pdfData length], NULL ); _documentRef = CGPDFDocumentCreateWithProvider(_dataProviderRef); _pageRef = CGPDFDocumentGetPage(_documentRef, 1); CGPDFPageRetain(_pageRef); _pdfFrame = CGPDFPageGetBoxRect(_pageRef, kCGPDFArtBox); So the NSData object is retained, and I explicitly retain the page reference. The data provider and the document are already retained by the create-functions. And here is my dealloc method: -(void)dealloc { if (_pageRef) CGPDFPageRelease(_pageRef); if (_documentRef) CGPDFDocumentRelease(_documentRef); if (_dataProviderRef) CGDataProviderRelease(_dataProviderRef); self.pdfData = nil; [super dealloc]; } Am I doing anything wrong? Even an assurance that I'm not, with explanation, would be a help.

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• Greasemonkey @require jQuery not working "Component not available"

  - by Greg K

  I've seen the other question on here about loading jQuery in a Greasemonkey. Having tried that method, with this require statement inside my ==UserScript== tags: // @require http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js I still get the following error message in Firefox's error console: Error: Component is not available Source File: file:///Users/greg/Library/Application%20Support/ Firefox/Profiles/xo9xhovo.default/gm_scripts/myscript/jquerymin.js Line: 36 This stops my greasemonkey code from running. I've made sure I included the @require for jQuery and saved my js file before installing it, as required files are only loaded on installation. Code: // ==UserScript== // @name My Script // @namespace http://www.google.com // @description My test script // @include http://www.google.com // @require http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js // ==/UserScript== GM_log("Hello"); I have Greasemonkey 0.8.20091209.4 installed on Firefox 3.5.7 on my Macbook Pro, Leopard (10.5.8). I've cleared my cache (except cookies) and have disabled all other plugins except Flashblock 1.5.11.2, Web Developer 1.1.8 and Adblock Plus 1.1.3. My config.xml with my Greasemonkey script installed: <UserScriptConfig> <Script filename="myscript.user.js" name="My Script" namespace="http://www.google.com" description="My test script" enabled="true" basedir="myscript"> <Include>http://www.google.com</Include> <Require filename="jquerymin.js"/> </Script> I can see jquerymin.js sat in the gm_scripts/myscript/ directory. Additionally, is it common for this error to occur in the console when installing a Greasemonkey script? Error: not well-formed Source File: file:///Users/Greg/Documents/myscript.user.js Line: 1, Column: 1 Source Code: // ==UserScript==

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• Can plugins loaded with MEF resolve their own internal dependencies with the same MEF container for

  - by Dave

  From my experimentation, I think the answer is "kind of", but I could have made a mistake. I have an application that loads appliance plugins with MEF. That part is working fine. Now let's say that my BlenderAppliance wants to resolve several of its dependencies with MEF, which each implement IApplianceFeature. I've just used the ImportMany attribute to my plugin. I made sure to create the plugin using MEF so that the Imports work properly. I said "kind of" because some of the plugin's internals (i.e. the model) are loading with MEF just fine, but the IApplianceFeatures aren't. The difference here is that the IApplianceFeatures are themselves, assemblies. And at the moment, they are in one folder above that of the plugin itself, i.e. + application folder | IApplianceFeature1.dll | IApplianceFeature2.dll +---+ plugin folder | BlenderAppliance.dll Now if my application uses an AggregateCatalog to load the "." and ".\plugins" folders, why doesn't it ever load the IApplianceFeature assemblies for me? Is it possible / advisable to have the plugin create its own MEF container to resolve its dependencies, or does really nasty stuff happen? If you have any stories about this scenario, please share. :)

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• How much multiple style sheets slow down to website?

  - by metal-gear-solid

  Here is 3 css file (one is only for IE) <link rel="stylesheet" href="css/blueprint/screen.css" type="text/css" media="screen, projection"> <link rel="stylesheet" href="css/blueprint/print.css" type="text/css" media="print"> <!--[if lt IE 8]><link rel="stylesheet" href="css/blueprint/ie.css" type="text/css" media="screen, projection"><![endif]--> If i keep divide scree.css into these css in my website Now it will be 6 css ( one is only for IE) <link rel="stylesheet" href="css/blueprint/reset.css" type="text/css" media="screen, projection"> <link rel="stylesheet" href="css/blueprint/grid.css" type="text/css" media="screen, projection"> <link rel="stylesheet" href="css/blueprint/typography.css" type="text/css" media="screen, projection"> <link rel="stylesheet" href="css/blueprint/forms.css" type="text/css" media="screen, projection"> <link rel="stylesheet" href="css/blueprint/print.css" type="text/css" media="print"> <!--[if lt IE 8]><link rel="stylesheet" href="css/blueprint/ie.css" type="text/css" media="screen, projection"><![endif]--> If i go for method two for a website even after production . Does it really slowdown the website page loading speed? if yes then how much? How much these 3 extra style sheet will affect site performance?

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• Managing Dependency Hell with WiX and C#

  - by Tom the Junglist

  We are on the eve of product launch, and at the last minute I am being bombarded with crash reports that appear to be related to our installer, which is a WiX3 project with separate outputs for x86 and x64 builds. These have been an ongoing problem that I always thought were fixed, only to find out that they were still lurking. The product itself is a collection of binaries that communicate with each other via .Net remoting, including a Windows Service and a small COM component that is loaded as an addon in another app. The service runs as SYSTEM, the COM piece runs in a low-rights context, while the other pieces run in normal user contexts. Other pieces include an third-party COM object library DLL and a shared DLL with the .net Remoting interfaces. I've observed flat-out weird behavior with MSI, particularly on version upgrades. Between MS' anal strong-name implementation (specifically, the exact version check before loading a given assembly), a documented WiX/MSI bug that sees critical files erased on upgrades (essentially, if a file in the upgrade MSI has the same version number as the existing install, that file is deleted), and having to work around Wow64 virtualization (x86 MSI can only write to registry/HD locations via Wow64, yet x64 MSIs cannot run on x86 computers...), I am about ready to trash the whole thing and port it over to a different install system. What I am looking for on tips + tricks, techniques, or suggestions on how to properly do things so that I am not fighting with Windows Installer's twisted sense of logic. I am tired of fighting with WiX/MSI/Windows Installer. All it needs to do is place files and registry keys where I tell it to, upgrade them when appropriate, and don't delete anything until the user uninstalls. Instead, dependencies are deleted willy-nilly, bringing up a whole bunch of uncatchable exceptions (can't wrap a try{} block around function declarations) and GPF'ing the whole app. I am particularly interested in 'best practices' and examples regarding shared and dependency DLLs, and any tips on making sure if a file needs to go to GAC, that it actually goes to the GAC and stays there until it is appropriate to remove it. Thanks! Tom

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• Silverlight WCF serialization DataContract(IsReference=true) problem

  - by Ciaran

  Hi, I'm have a Silverlight 3 UI that access WCF services which in turn access respositories that use NHibernate. To overcome some NHibernate lazy loading issues with WCF I'm using my own DataContract surrogate as described here: http://timvasil.com/blog14/post/2008/02/WCF-serialization-with-NHibernate.aspx. In here I'm setting preserveObjectReferences = true My model contains cycles (i.e. Customer with IList[Order]) When I retrieve an object from my service it works fine, however when I try and send that same object back to the wcf service I get the error: System.ServiceModel.CommunicationException was unhandled by user code Message=There was an error while trying to serialize parameter http://tempuri.org/:searchCriteria. The InnerException message was 'Object graph ...' contains cycles and cannot be serialized if references are not tracked. Consider using the DataContractAttribute with the IsReference property set to true.' So cyclical references are now a problem in Silverlight, so I try change my DataContract to be [DataContract(IsReference=true)] but now when I try to retrieve an object from my service I get the following exception: System.ExecutionEngineException was unhandled Message=Exception of type 'System.ExecutionEngineException' was thrown. InnerException: Any ideas?

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• Why were namespaces removed from ECMAScript consideration?

  - by Bob

  Namespaces were once a consideration for ECMAScript (the old ECMAScript 4) but were taken out. As Brendan Eich says in this message: One of the use-cases for namespaces in ES4 was early binding (use namespace intrinsic), both for performance and for programmer comprehension -- no chance of runtime name binding disagreeing with any earlier binding. But early binding in any dynamic code loading scenario like the web requires a prioritization or reservation mechanism to avoid early versus late binding conflicts. Plus, as some JS implementors have noted with concern, multiple open namespaces impose runtime cost unless an implementation works significantly harder. For these reasons, namespaces and early binding (like packages before them, this past April) must go. But I'm not sure I understand all of that. What exactly is a prioritization or reservation mechanism and why would either of those be needed? Also, must early binding and namespaces go hand-in-hand? For some reason I can't wrap my head around the issues involved. Can anyone attempt a more fleshed out explanation? Also, why would namespaces impose runtime costs? In my mind I can't help but see little difference in concept between a namespace and a function using closures. For instance, Yahoo and Google both have YAHOO and google objects that "act like" namespaces in that they contain all of their public and private variables, functions, and objects within a single access point. So why, then, would a namespace be so significantly different in implementation? Maybe I just have a misconception as to what a namespace is exactly.

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• Silverlight WCF serialization [DataContract(IsReference=true)] problem

  - by Ciaran

  Hi, I'm have a Silverlight 3 UI that access WCF services which in turn access respositories that use NHibernate. To overcome some NHibernate lazy loading issues with WCF I'm using my own DataContract surrogate as described here: http://timvasil.com/blog14/post/2008/02/WCF-serialization-with-NHibernate.aspx. In here I'm setting preserveObjectReferences = true My model contains cycles (i.e. Customer with Collection). When I retrieve an object from my service it works fine, however when I try and send that same object back to the wcf service I get the error: System.ServiceModel.CommunicationException was unhandled by user code Message=There was an error while trying to serialize parameter http://tempuri.org/:searchCriteria. The InnerException message was 'Object graph ...' contains cycles and cannot be serialized if references are not tracked. Consider using the DataContractAttribute with the IsReference property set to true.' So cyclical references are now a problem in Silverlight, so I try change my DataContract to be [DataContract(IsReference=true)] but now when I try to retrieve an object from my service I get the following exception: System.ServiceModel.CommunicationException was unhandled by user code Message=The remote server returned an error: NotFound. It shouldn't be this hard to do something so trivial...

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• Visual Studio 2010 Crashes when Creating or Editing a Report (.rdlc) with the Report Designer

  - by ondesertverge

  This is an issue I had with VS 2010 RC and was hoping would be solved with the first official release. Sadly it wasn't. What I have is a number of reports originally created with VS 2008. When opening any of these for editing in VS 2010's Report Designer VS hangs for about two minutes and then shuts down. Same happens when creating a new report using the wizard. Only difference is that a dialog opens up showing a "Loading ..." message then hangs for about the same amount of time and crashes. Running devenv /log gives nothing of value. The Windows Application Event Viewer shows only this: Faulting application name: devenv.exe, version: 10.0.30319.1, time stamp: 0x4ba1fab3 Faulting module name: clr.dll, version: 4.0.30319.1, time stamp: 0x4ba1d9ef Exception code: 0xc00000fd Fault offset: 0x00001919 Faulting process id: 0xc38 Faulting And this: .NET Runtime version 2.0.50727.4927 - Fatal Execution Engine Error (6F551CF2) (0) Has anyone else experienced this and found a solution? OR -- Is there a better tool for rapidly creating decent reports within a WinForms app? Help would be greatly appreciated!

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• UITextField resignFirstResponder not working?

  - by Tejaswi Yerukalapudi

  I've double checked all the connections in the nib file. My code - // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { self.view.backgroundColor = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"iphone_bg_login.png"]]; self.title = @"Login screen"; loginTxt = [[UITextField alloc] init]; pwdText = [[UITextField alloc] init]; loginFailedTxt = [[UILabel alloc] init]; loginBtn = [[UIButton alloc] init]; navAppDelegate = (NavAppDelegate *)[[UIApplication sharedApplication] delegate]; navAppDelegate.navController.navigationBarHidden = YES; //NSArray *subVs = (NSArray *) [self.view subviews]; [super viewDidLoad]; } I've used a subclass of UIView (UIControl) and added all the UI elements to it in the Interface builder.The UIControl's touchDown method is connected to backgroundTap method. -(IBAction) backgroundTap:(id) sender { [loginTxt resignFirstResponder]; [pwdText resignFirstResponder]; //[[UIApplication sharedApplication] becomeFirstResponder]; //[sender resignFirstResponder]; } So the keyboard isn't removed like it's supposed to. Not sure why. Thanks for the help! Teja.

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