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• Pc won't start after installing latest version of ubuntu

  - by sotos bic

  Pc won't start after installing latest version of ubuntu . I press the button to start the pc and then i see the bios start but after that i get a black screen and nothing is happening. i can't even re install windows 7 or choose between windows 7 and linux . Please help i don't want to pay for fixing this . I don't remember the hardware and since i can't access windows 7 i can't tell you. the only thing that i know is that it is an hp compaq 500bmt

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• registration form with payment system ( paypal ) [closed]

  - by Alecs

  I'm using an ajax registration form plugin for my website and I'm thinking to implement also Paypal. Here is how I want to implement it : I have 3 labels ( Name, Phone, Email, ) and a " Buy " button. After the user is typing his name, phone and email they click on "Buy" and they will be redirected to the paypal payment page or if it's possible to stay on the same page. Probably, what I need to know is how to make the "Buy " only after the forms ( name, phone, email ) are validated. Is there a plugin, or a snippet of code already made to not start something which already exists.

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• Creating User Generated Subdomains

  - by nicks451

  Hi there, The company I work for is close to being finished with our first web app and we recently made the decision to offer hosting for our smaller customers. (We provide software to lending companies and our larger customers are required to buy redundant servers to host their application). What we are trying to work out right now is how to create user generated subdomains that will hold a new instance of the software. So a user will be able to sign up and say that the company name is XYZ Credit once they click on the create account button a url of xyzcredit.ourcompanyname.com is created and the user is redirected to it. The servers that we want to use are running CentOS 5.5 and Virtualmin 3.83. Thank you for your help, Nick

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• Display large amount of data to client through pagination

  - by ebram tharwat

  I have a web application in which i need to show a big number of data or records for clients. Now i 'll use pagination but i was wondering should I: Load all the data once then pagination, sorting and sarching 'll be easy..But it 'll takes big time(using local DB it takes up to 9 sec.) Or each time i show new page(from the pagination) i make a new request to server and then new request to DB to get the next records..But then what if the client click on Prev button, i 'll make a new request to get data that I had previously..Should i cach data that are loaded before and how if that's good technique? So load all data once or make a new request every time i need data that maybe have been loaded before. I'm using ASP.NET MVC SPA with durandaljs and knockoutjs

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• Ubuntu 13.10 Installer freezes on partition recognition on Alienware M17x

  - by Mutewinter

  I'm trying to install Ubuntu 13.10 on an Alienware M17x, after bypassing the graphical problems with "nomodeset" (annoying!), I'm facing a rather different problem: I click on "Install Ubuntu", the guided installation progress reach the point where the partition, mount point etc. needs to be selected and...nothing. In the partition selection menu it sees only dev/sda, but in the window where the actual way the disk is partitioned should appear nothing shows, it's blank. I've tried to click on "change..." to try to force it to read something, but the installer simply quits. The button "change partition table" etcetera are greyed out (well, obviously, since no partition table has been read). What's that? The Alienware has Windows 7 and legacy BIOS (so no UEFI here). Anyone has an idea? Thanks for your time and help!

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• Oracle Tax ETPM V2.3.1 Portuguese documentation is Now Available

  - by Rick Finley

  This provides a Portuguese user assistence (UA) language pack for Oracle ETPM v2.3.1.  Please note, this language pack translates the ETPM online help to Iberian Portuguese.   Language Patch Download: 1.   To download the Portuguese language pack please log in to My Oracle Support https://support.oracle.com/CSP/ui/flash.html. 2.     Select the 'Patches and Updates' tab 3.     Type in the Patch number: 13927078 4.     Click the Patch number 5.     Download using the yellow download button on the right hand side  

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• Have windows key (meta) trigger Gnome-do instead of Unity Dash (12.04)

  - by Jason O'Neil

  On my laptop the Unity Dash often launches really slowly. I might press the Windows button, and sometimes it will take up to 15 seconds to open, and the system becomes unresponsive during this time. This is especially likely if I haven't opened the launcher in a few hours. I have Gnome-Do installed, and I currently launch it with "Ctrl + Space", and it launches instantly and is very responsive. I would like to swap my shortcut keys, so Meta (the Windows key) launches Gnome Do, but I can't figure out where to change the keyboard shortcut for the dash. Any clues?

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• 12.04 - sound is laggy when running games through Wine

  - by orzechowskid

  Lenovo U400 Wine 1.5.5 Ubuntu 12.04 with all updates applied I'm experiencing severe (~500ms) audio lag in all games run in Wine. Portal 2, Half-Life, World of Goo, and Fallout are all exhibiting this problem. When I run winecfg though and click the "Test Sound" button at the bottom of the Audio tab, the sound effect appears to play immediately. So I'm not sure what's going on. I don't think it's a problem with PulseAudio by itself since totem videos and Youtube clips both play in perfect sync. Anyone have any ideas on where to start fixing this? thanks! (edit: I thought this was limited to Steam games but I installed a non-Steam game and I now see that's not the case. I get audio lag in other apps too.)

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• 12.04 freezes on install

  - by CHris

  I'm new to ubuntu and can't for the life of me understand how to get around this issue. I'm having a problem where when I insert the boot disk that i burned for 12.04, it loads and gives me the language option and select an installation type, i select either try ubuntu / install ubuntu and it begins to load. Then after about 5 mintues of the purple screen with the dots under the UBUNTU it freezes the whole computer, and the only way to get out is to turn off the laptop with the power button. I have read previous threads saying people had similar "freezing" issues including ones that mention my model of laptop, HP Pavillion DV1000. But it appears their problems are post installation and relate to their wireless cards. I have tried changing the boot options (F6) and I am totally stuck. Can anyone shed any light on to this issue? Thanks in advance.........

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• How to get the 'Install alongside Windows' option, i only see 'Install inside Windows'?

  - by IanDess

  I created a bootable USB Stick with Ubuntu 13.10 and when i boot from it and try to install it i only get the option "Install inside Windows" and the button in the bottom right corner says "Restart to continue". But i don't want that, i want a real dual boot. I installed Ubuntu few days ago on my laptop and i clearly remember that it said "Install ALONGSIDE Windows". What should i do to get that option? PS i previously had Ubuntu installed on this PC from WUBI, but i uninstalled it.

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• PC won't boot up after installing 11.10

  - by bakhshu

  I have a HP/Compaq s1010z (AMD64) desktop and installed 11.10 from a CD (using the entire disk). So it formatted the entire drive, went through installation and then it ejected the CD and asked me to click the Restart button, which I did. It rebooted fine the first time, but any time thereafter, it fails. Meaning, after the initial BIOS screen, the monitor seems to be stuck in limbo with a text cursor blinking on the top left corner, as if it can't find anything to boot from. At first I tried reinstalling (reformat entire drive again) - no improvement. Then I did an in-place re-installation (leave home dirs in place, just redo the OS), nothing there either. Then I put in the 11.04 CD, changed the boot order to CD first, and got the CD menu, chose 'Boot from first hard disk' and it booted fine. The problem is that I can't boot without the 11.04 CD, how ironic! Any ideas?

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• Inserting x200s into (ultrabase) docking station mirror screen is always activated leading to non optimal resolution

  - by kiu

  Builtin LCD should be 1440x900 External LCD should be 1920x1080 If X200s is inserted into docking station the option mirror screen is always activated leading to a resolution of 1152x864 which looks terrible on the builtin and external lcd. My manual configuration for docking mode (seperate screens with maximum resolution) should be respected, but "Make Default" button has no consequences. Found a quick fix, but this cant be the offical ubuntu way... /etc/udev/rules.d/99-vga.rules: SUBSYSTEM=="drm", ACTION=="change", RUN+="/usr/local/sbin/vga_changed.sh" /usr/local/sbin/vga_changed.sh: #!/bin/bash dmode="$(cat /sys/class/drm/card0-VGA-1/status)" export DISPLAY=:0.0 if [ "${dmode}" = disconnected ]; then /usr/bin/sudo -u kiu /usr/bin/xrandr --output LVDS1 --mode 1440x900 --pos 0x0 --output VGA1 --off elif [ "${dmode}" = connected ]; then /usr/bin/sudo -u kiu /usr/bin/xrandr --output LVDS1 --mode 1440x900 --pos 0x0 --output VGA1 --auto --mode 1920x1080 --right-of LVDS1 fi

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• Bluetooth automatic mouse connection not working

  - by Ray B.

  I'd like my HP Bluetooth Mouse x4000b (no usb dongle) to connect automatically when starting my HP laptop (Ubuntu 14.04), but I can't succeed in it : I'm forced to do it manually by clicking the "connect" button. I know this topic has been answered many times, but no solution worked for me. Here's what I tried so far : Creating the file /etc/default/bluetooth with lines : HIDD_ENABLED=1 HIDD_OPTIONS="--connect F0:65:DD:7D:EC:A0 --server" Putting hciconfig hci0 reset at the end of /etc/init.d/bluetooth Putting /etc/init.d/bluetooth stop sleep 1 /etc/init.d/bluetooth start in /etc/rc.local None of these solution worked, I've read a lot of topics but couldn't find a solution ... that's why I'm asking that here, hoping you can help me troubleshooting that. Thank you ! Ray

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• New Window Via JavaScript Clears Parent

  - by Bunch

  This is not a new item at all but I came across it recently. For an app I had been using some JavaScript like: javascript:window.open(someurl.aspx here) to open a new window via a button. That bit of code had been working great in several other apps. Then in one app that same code decided to open the new window correctly while clearing the parent of everything but [object]. The fix ended up being simple, change the javascript to: javascript:void(window.open(someurl.aspx here); Then it worked like I thought it should. Tags: ASP.Net, JavaScript

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• Navigation for ASP.NET Web Forms project published on codeplex

  Navigation for ASP.NET Web Forms manages movement and data passing between aspx Pages in a unit testable manner. There is no Client-side logic, so it works in all browsers, and no Server-side cache, so it works with the browser back button.Features include loosely coupled Pages, typed data passing, empty code-behinds, context-sensitive bread crumb trail, ASP.NET Data binding integration, automatic ASP.NET Ajax history navigation and many more.The source code, binaries and comprehensive documentation...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• 12.10 nautilus on dell xps 12 does not work

  - by user108664

  I have installed 12.10 on a new Dell XPS 12 ultrabook. Everything seems to work properly right now, including the touch screen, except for nautilus. The left pane works properly, I can select an item on the left and the contents will show up on the right, but when I go to do anything with the contents on the right nothing happens, I can't double click to open, I can't right click to bring up a menu. I can however hold down the left button and to draw a box to select more than one item, but I can't do anything with the selected items. I did not have these problems when I tried 12.04, but unfortunately the touchscreen does not work out of the box on 12.04 and 12.10 seemed to be the faster way go. Any ideas? How can I log what is happening when I try to do anything in nautilus?

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• Should I use events in this case?

  - by joon

  I'm creating a video player, like a custom YouTube player. All of the GUI elements (progress bar, video player, play button, ...) are different classes, but I obviously need them to communicate. When the progress bar is clicked, or the slider is moved, it needs to send a "seek(x)" command to the video player. Similarly, the video player needs to update the progressbar every frame. Currently I'm doing this by having almost all elements have a link to each other. So when I create the progress bar, I'm telling it where the video player is. But after a while this becomes more and more complicated, and I'm wondering if events would be a better way to do this. Or a main controller class that has all the connections. What should I do?

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• 12.10 will not shut down

  - by rahi

  I recently installed 12.04 on an hp spectre xt ultrabook. I installed 12.04 from a USB. When the install was complete, and the computer restarted, I got a blank screen. After some searching, I found that I had to choose "acpi=off" during the installation, which now shows up in the grub screen. Once I was on 12.04, I upgraded to 12.10. The issue now is that when I hit shutdown, the computer hangs on a purple shutdown screen. Usually, at this point, I press the power button on the machine to completely power off the machine. I am new to ubuntu, and would appreciate the help. Thanks.

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• Using XNA libraries in your Silverlight Windows Phone 7 applications

  I recently got an inquiry to my Microsoft Translator sample on if this would work with the Silverlight in the Windows Phone 7 SDK. I hadnt tried it before, so I created a sample Windows Phone 7 application and copied the code over. I used a basic UI to mock up the similarities: And then clicked the button. The text translated fine, but no audio. I didnt get any warnings that the WaveMSS code sample I was using wouldnt work. Then I remembered about XNA. NOTE: I actually think this is a bug...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Two Values Enter, One Value Leaves

  - by Bunch

  This is a fairly easy way to compare values for two different controls. In this example a user needs to enter in a street address and zip code OR pick a county. After that the application will display location(s) based on the value. The application only wants a specific street/zip combination or a county, not both. This code shows how to check for that on an ASP.Net page using some JavaScript. The control code: <table>     <tr>         <td>             <label style="color: Red;">Required Fields</label>         </td>         <td style="width: 300px;">             <label style="color: Red; font-weight: bold;" id="reqAlert" ></label>         </td>     </tr>     <tr>         <td>             <asp:Label ID="Label3" runat="server" Text="Street Address"></asp:Label>         </td>         <td style="width: 200px;">             <input id="Street" type="text" style="width: 200px;" />         </td>     </tr>      <tr>         <td>             <asp:Label ID="Label5" runat="server" Text="Zip Code"></asp:Label>             &nbsp;         </td>         <td style="width: 200px;">             <input id="Zip" type="text" style="width: 200px;"/>         </td>     </tr>     <tr>         <td>             <label style="color: Red; font-size: large;">-- OR --</label>         </td>     </tr>     <tr>         <td>             <asp:Label ID="Label2" runat="server" Text="County"></asp:Label>         </td>         <td style="width: 200px;">             <asp:DropDownList ID="ddlCounty" runat="server">                 <asp:ListItem Value="0" Text="" />                 <asp:ListItem Value="1" Text="County A" />                 <asp:ListItem Value="2" Text="County B" />                 <asp:ListItem Value="3" Text="County C" />                                </asp:DropDownList>         </td>     </tr> </table> <input id="btnMapSearch" type="button" value="Search" onclick="requiredVal()" class="actionButton" /> The onclick for the button runs the requiredVal javascript function. That is where the checks take place. If only one item (street/zip or county) has been entered the application will carry on with it’s locateAddr function; otherwise it will show an error message in the label reqAlert. The javascript: function requiredVal() {     var street = document.getElementById("Street").value;     var zip = document.getElementById("Zip").value;     var countyDdl = document.getElementById("ctl00_Content_ddlCounty");     var county = countyDdl.options[countyDdl.selectedIndex].text;     var reqAlert = document.getElementById("reqAlert");     reqAlert.innerHTML = '';   //clears out any previous messages     if (street != '' || zip != '') {         if (county != '') {             reqAlert.innerHTML = 'Please select only one required option';  //values for both were entered         }         else {             locateAddr();         }     }     else if (street == '' && zip == '' && county == '') {         reqAlert.innerHTML = 'Please select a required option';  //no values entered     }     else {         locateAddr();     } } Technorati Tags: ASP.Net,JavaScript

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• How do I edit keyboard preferences from the command line?

  - by jumpnett

  I want to swap the Caps Lock and Escape key as specified in this answer: Use the keyboard preferences to swap Caps Lock and Escape - seriously, how often do you use Caps Lock? Using vim you will be using Escape all the time, and having it available on the home row makes a huge difference. With the standard Ubuntu desktop, go through the menus: System - Preferences - Keyboard - Layouts tab. Then hit the "Layout Options" button, click on the triangle next to "Caps Lock key behaviour" and select "Swap ESC and CapsLock". but, I'm using Ubuntu Server with no gui, so how would I do this from the command line?

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• How to debug slow session start of Gnome 3?

  - by user65521

  After Upgrade from 11.10 to 12.04, the login process of Gnome 3 is extremely slow (It takes in the order of 60 seconds when it was in the order of a few seconds before the upgrade (Harddisk is a SSD!)). Running "top" in a VT shows that gnome-shell is producing about 90% CPU load while dbus-daemon is taking roughly 10%. The moment when CPU-load of gnome-shell drops to normal levels (around 2-3%) corresponds to the time the login process is terminated and the desktop is displayed. De-activating the four gnome-shell extensions (Alternative Status Menu, Quit Button, Remove Accessibility, system-monitor) that I have installed does not have any effect on session start up time. Login to Gnome classic does not show the slow session start. The system logs do not show anything suspicious. Thus, what is the best way to identify the underlying problem?

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• Open a popup window from Silverlight

  - by Emanuele Bartolesi

  Silverlight has a method called HtmlPage.PopupWindow() that opens new web browser window with a specific page. You can find this method in the namespace System.Windows.Browser. If you haven’t in your project, add a reference to System.Windows.Browser. The method HtmlPage.PopupWindow() has three parameters: Uri – location to browse String – the target window HtmlPopupWindowOptions – a class with the window options (full list of properties http://msdn.microsoft.com/en-us/library/system.windows.browser.htmlpopupwindowoptions(v=vs.95).aspx) For a security reason of Silverlight the call to HtmlPage.PopupWindow() is allowed through any user input like a button, hyperlink, etc. The code is very simple: var options = new HtmlPopupWindowOptions {Left = 0, Top = 0, Width = 800, Height = 600}; if (HtmlPage.IsPopupWindowAllowed) HtmlPage.PopupWindow(new Uri("http://geekswithblogs.net/"), "new", options); The property IsPopupWindowAllowed is used to check whether the window is enabled to open popup.

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• Cannot boot from Ubuntu Live CD on preinstalled Windows 8 laptop

  - by seferov

  I bought a Sony Vaio with Windows 8 yesterday. I want to install Ubuntu, (latest version), alongside Windows. There is an assist button on the laptop to enter the boot option menu, (otherwise, Windows 8 is booted by default. Whenever I choose the, 'boot from CD' option, it says 'No operating system found'. CD is valid since I tried it on another computer and it worked fine. I have tried both versions, 12.04 and 12.10. What is the problem, or how should I install Ubuntu on my laptop?

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• Out of range on shut down, Log Out, Restart and Suspend

  - by user52889

  I have looked extensively on the help forums but haven't found a similar problem. Whether I want to Shut Down, Restart, Log Out or Suspend, as soon as I select my desired option the screen goes black with a message (Out of Range displayed in the middle of the screen. No combination of keys frees the screen and I have to manually hold the power button on my PC to shut it down. There is no problem on start up. My computer is a dual boot with Windows 7.

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