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• alsa - sound issues on ubuntu 12.04

  - by tam_ubuuser

  i am having an sony E series laptop.i have an HDMI port .at this stage ,i have tested my sound card , which provides audio out on my laptop i.e i could hear songs .my laptop has two sound cards amd 5450 and an intel-hda(alsamixer shows that as s/pdif) . i decided to connect HDMI output to my new HD-TV.but, i could get only visuals on my TV,NO AUDIO OUTPUT ( HDMI cable works fine with win 7).my laptop has two sound cards.but i couldn't switch output to other card.( i don't know ,how to do that) i decided to update alsa. complied the following code in terminal. sudo apt-add-repository ppa:ubuntu-audio-dev/alsa-daily sudo apt-get update sudo apt-get install alsa-hda-dkms then,strangely no login sound, and no audio output on my laptop at all .then, started complied code from step1 sound troubleshooting procedure from offical ubuntu site.then, my speaker icon taskbar disappeared .obivously $aplay -l ,provided output as no soundcards detected . so , i implemented step 4 from that guide, it provides a output of all hardware devices in my laptop. *-multimedia UNCLAIMED description: Audio device product: Cedar HDMI Audio [Radeon HD 5400/6300 Series] vendor: Hynix Semiconductor (Hyundai Electronics) physical id: 0.1 bus info: pci@0000:01:00.1 version: 00 width: 64 bits clock: 33MHz capabilities: pm pciexpress msi bus_master cap_list configuration: latency=0 resources: memory:f0040000-f0043fff *-multimedia UNCLAIMED description: Audio device product: 5 Series/3400 Series Chipset High Definition Audio vendor: Intel Corporation physical id: 1b bus info: pci@0000:00:1b.0 version: 05 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: latency=0 resources: memory:f5e00000-f5e03fff that command displayed output name of the two cards . but , still i have no positive output on $aplay -l. so therfore, i think alsa couldn't detect my sound cards . is there solution to this problem? it could be better,if alsa would channel output from multiple sound cards ? how should install and configure alsa such that detects HDMI cable as soon i connect to my HD tv? is it possible to alsa and pluseaudio 2.0 to co-exist, if so how?

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• How to call a program and exit from the shell (the caller) when program is active?

  - by Jack

  I want to run a program with GUI, by typing into konsole: foo args … and exit from the shell (that's the caller) when the program (foo) is active. How do I this? Is there a Linux/Unix built-in command/program to do it? I'm not a shell-man, really. I know that it's possible by writing a small program in C or C++ (any other programming language with small I/O interface on POSIX) programming language with the fork() and one-of exec*() function family. It may take some time; I'll do it only if there is no native solution. Sorry for my bad English; it's not my native language. Also, not sure on tags, please edit for me, if I'm wrong. If it matters, I'm using OpenSUSE 10.x.

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• Assignments in mock return values

  - by zerkms

  (I will show examples using php and phpunit but this may be applied to any programming language) The case: let's say we have a method A::foo that delegates some work to class M and returns the value as-is. Which of these solutions would you choose: $mock = $this->getMock('M'); $mock->expects($this->once()) ->method('bar') ->will($this->returnValue('baz')); $obj = new A($mock); $this->assertEquals('baz', $obj->foo()); or $mock = $this->getMock('M'); $mock->expects($this->once()) ->method('bar') ->will($this->returnValue($result = 'baz')); $obj = new A($mock); $this->assertEquals($result, $obj->foo()); or $result = 'baz'; $mock = $this->getMock('M'); $mock->expects($this->once()) ->method('bar') ->will($this->returnValue($result)); $obj = new A($mock); $this->assertEquals($result, $obj->foo()); Personally I always follow the 2nd solution, but just 10 minutes ago I had a conversation with couple of developers who said that it is "too tricky" and chose 3rd or 1st. So what would you usually do? And do you have any conventions to follow in such cases?

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• Sweden Windows Azure Group Meeting in November &amp; Fast with Windows Azure Competition

  - by Alan Smith

  SWAG November Meeting There will be a Sweden Windows Azure Group (SWAG) meeting in Stockholm on Monday 19th November. Chris Klug will be presenting a session on Windows Azure Mobile Services, and I will be presenting a session on Web Site Authentication with Social Identity Providers. Active Solution have been kid enough to host the event, and will be providing food and refreshments. The registration link is here: http://swag14.eventbrite.com If you would like to join SWAG the link is here: http://swagmembership.eventbrite.com Fast with Windows Azure Competition I’ve entered a 3 minute video of rendering a 3D animation using 256 Windows Azure worker roles in the “Fast with Windows Azure” competition. It’s the last week of voting this week, it would be great if you can check out the video and vote for it if you like it. I have not driven a car for about 15 years, so if I win you can expect a hilarious summery of the track day in Vegas. My preparation for the day would be to play Project Gotham Racing for a weekend, and watch a lot of Top Gear.   My video is “Rapid Massive On-Demand Scalability Makes Me Fast!”. The link is here: http://www.meetwindowsazure.com/fast/

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• Mounting LVM2 volume with XFS filesystem

  - by Chris

  Unfortunately I'm not able to access the data on my NAS anymore. I can't figure out why this is the case as I haven't changed anything. So I plugged one of the harddisks in my computer to access the data. What I did: kpartx -a /dev/sdc Now I should be able to access /dev/mapper/vg001-lv001 When trying to mount it I get: sudo mount -t xfs /dev/mapper/vg001-lv001 /home/user/mnt mount: /dev/mapper/vg001-lv001: can't read superblock Now I did a parted -l which gave me Modell: Linux device-mapper (linear) (dm) Festplatte /dev/mapper/vg001-lv001: 498GB Sektorgröße (logisch/physisch): 512B/512B Partitionstabelle: loop Number Begin End Size Filesystem Flags 1 0,00B 498GB 498GB xfs Does anybody have a solution how to recover the data?

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• Algorithm for rating books: Relative perception

  - by suneet

  So I am developing this application for rating books (think like IMDB for books) using relational database. Problem statement : Let's say book "A" deserves 8.5 in absolute sense. In case if A is the best book I have ever seen, I'll most probably rate it 9.5 whereas for someone else, it might be just an average book, so he/they will rate it less (say around 8). Let's assume 4 such guys rate it 8. If there are 10 guys who are like me (who haven't ever read great literature) and they all rate it 9.5-10. This will effectively make it's cumulative rating greater than 9 (9.5*10 + 8*4) / 14 = 9.1 whereas we needed the result to be 8.5 ... How can I take care of(normalize) this bias due to incorrect perception of individuals. MyProposedSolution : Here's one of the ways how I think it could be solved. We can have a variable Lit_coefficient which tells us how much knowledge a user has about literature. If I rate "A"(the book) 9.5 and person "X" rates it 8, then he must have read books much better than "A" and thus his Lit_coefficient should be higher. And then we can normalize the ratings according to the Lit_coefficient of user. Could there be a better algorithm/solution for the same?

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• Visual Studio 2010 haunted keyboard

  - by Ryan

  It seems the haunted keyboard is back in VS2010 ... after working on a web application for a short while I find that some keys just don't work, or are behaving like certain keys are stuck. This is only in VS, and I am definitely not triggering any keyboard changes in VS or Windows (I have disabled that in Windows) and I have reset my environment settings several times. Aargh! This is so frustrating ... anyone else getting this problem? Is there a solution?

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• Changing the Default Windows Phone 7 Deployment Target In Visual Studio 2010

  - by mbcrump

  After you download and install the January 2011 Windows Phone update, you will notice one annoying thing. The default deployment target for Windows Phone Projects in Visual Studio changes to Windows Phone 7 Device. Before the update, it defaulted to the Emulator. I found this extremely annoying as I’m more than likely going to test with the emulator before putting it on my actual device. Now to make things fair, Microsoft told you they were going to switch the default and even provided a solution, but you will have to check a tiny paragraph in the release notes. The good news is that its very easy to do: Simply navigate out to : %LocalAppData%\Microsoft\Phone Tools\CoreCon See the folder named, “10.0”? Go ahead and delete it. Now, the folder will be completely empty and if you fire up Visual Studio 2010 you will see we are now defaulting to the Emulator again. In my opinion, this should have been left at Emulator. Now, new WP7 developers will get a build error when they first start a WP7 project and will not know why until they read the error list.  Subscribe to my feed CodeProject

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• Ubuntu 12.04 LTS - Apple iPad 3 (iOS 7 non-jailbroken) USB connection problem

  - by Eldian

  I've bought an Apple iPad 3 (iOS 7 non-jailbroken), and I'm trying to connect it to my PC running Ubuntu 12.04 through the original USB cable. After I plugged in the cable, I got this message on the PC: The device 'iPad' is locked. Enter the passcode on the device and click 'Try again'. Slide to unlock on iPad, it's OK, I got this message on the PC again: The device 'iPad' is locked. Enter the passcode on the device and click 'Try again'. iPad: Trust this computer? TRUST/DON'T TRUST I've selected TRUST. PC: Unable to mount - DBus error org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus) OK, I've read some forums, everywhere there was this solution: "Install: ifuse, libimobiledevice-utils, Rhythmbox OK, I've installed them through terminal, and used the idevicepair unpair && idevicepair pair command also in the terminal. Then I got this message: Device is not paired with this host. I don't know what to do. Please help!

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• Plesk Subdomain folder group and permission problem

  - by Jake

  I am working on a dedicated server from some web host. In Plesk 9.5, after creating a subdomain sub.domain.com, with login using main account, plesk automatically creates a folder domain.com/subdomain/sub with user and group of root I want to upload some files (the framework api) in domain.com/subdomain/sub itself instead of domain.com/subdomain/sub/httpdocs but I can't. domain.com/subdomain/sub/httpdocs has user and group of [main account_user] and psaserv respectively Is there a way to modify the user/group of domain.com/subdomain/sub from plesk so that I can upload files inside it? Otherwise, what is the next best solution?

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• Cannot chown my own files from NFS

  - by valpa

  We have a NFS server provide home directory for many account, which provided by a NIS server. I have account A and B. In /home/A, I try to copy "cp -a /home/B/somedir ~/". Then I found in /home/A/somedir, all files are owned by user A. Then if I do "chown -R B:B somedir", I got "Operation not permitted" error. I am user A, "cp -a" didn't preserve the original user (B). Then I cannot chown my own files. Any suggestion? I fix my own issue by "chmod 777 /home/A", "su - B" and "cp -a somedir /home/A/", and "su - A", then "chmod 755 /home/A". But it is not a good solution.

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• In virtualbox, I can't access the dvd drive to install a guest host

  - by user211062

  I have installed a fresh copy of Ubuntu Server 12.04 and VirtualBox 4.3. I have set up a VM called "MediaServer" and tried to start it. I then get the following error: Cannot open host device '/dev/sr0' for readonly access. Check the permissions of that device ('/bin/ls -l /dev/sr0'): Most probably you need to be member of the device group. Make sure that you logout/login after changing the group settings of the current user (VERR_ACCESS_DENIED) I have looked all over the Internet and have been unable to find a solution. Using Webmin, I tried changing the group settings so that my user name was in the "vboxusers" group, but that did not work either. I tried various other changes in group settings and none of them worked. Also, I tried rebooting the server after the changes and that didn't work either. I have been following a guide on how to set up an Ubuntu server from the website "linuxhomeserverguide.com" and when it came to the section where you could finally set up your first virtual machine, I am stumped. I would really appreciate it if someone could help me. Thanks in advance.

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• Embedded Nashorn in JEditorPane

  - by Geertjan

  Here's a prototype for some kind of backoffice content management system. Several interesting goodies are included, such as an embedded JavaScript editor, as can be seen in the screenshot: Key items of interest in the above are as follows: Embedded JavaScript editor (i.e., the latest and greatest Nashorn technology, look it up, if you're not aware of what that is.) The way that's done is to include the relevant JavaScript modules in your NetBeans Platform application. Make very sure to include "Lexer to NetBeans Bridge", which does a bunch of critical stuff under the hood. The JEditorPane is defined as follows, along the lines that I blogged about recently thanks to Steven Yi: javaScriptPane.setContentType("text/javascript"); EditorKit kit = CloneableEditorSupport.getEditorKit("text/javascript"); javaScriptPane.setEditorKit(kit); javaScriptPane.getDocument().putProperty("mimeType", "text/javascript"); Note that "javaScriptPane" above is simply a JEditorPane. Timon Veenstra's excellent solution for integrating Nodes with MultiViewElements, which is described here by Timon, and nowhere else in the world. The tab you see above is within a pluggable container, so anyone else could create a new module and register their own MultiViewElement such that it will be incorporated into the editor. A small trick to ensure that only one window opens per news item: @NbBundle.Messages("OpenNews=Open") private class OpenNewsAction extends AbstractAction { public OpenNewsAction() { super(Bundle.OpenNews()); } @Override public void actionPerformed(ActionEvent e) { News news = getLookup().lookup(News.class); Mode editorMode = WindowManager.getDefault().findMode("editor"); for (TopComponent tc : WindowManager.getDefault().getOpenedTopComponents(editorMode)) { if (tc.getDisplayName().equals(news.getTitle())) { tc.requestActive(); return; } } TopComponent tc = MultiViews.createMultiView("application/x-newsnode", NewsNode.this); tc.open(); tc.requestActive(); } } The rest of what you see above is all standard NetBeans Platform stuff. The sources of everything you see above is here: http://java.net/projects/nb-api-samples/sources/api-samples/show/versions/7.3/misc/CMSBackOffice

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• Running a command line app with sudo and password automatically on OS X startup

  - by Designer023

  I need to run an app at startup/login on my mac. I want it to launch in the background and start doing it's work without interrupting me or me having to start it up because I invariably forget and then when I need it, it wasn't running! I have tried using AppleScript to tell Terminal to run it and type my password in, but it ends up opening multiple Terminal windows and not working. Ideally I need a script that I can just add to the user login items and it will run for me. The app has no way of taking a password argument either and it has a password as well as the sudo! I need a solution that can either be done as an applescript (which can be made into an executable) or i need a commandline script but I have no idea about them. This is the manual code I type $ sudo serverStatus password:123456 password:serverpass My AppleScript: tell application Terminal activate do shell script "sudo serverStatus" delay 5 do shell script "123456" delay 2 do shell script "serverpass" end tell

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• How to create a hotkey to open diigo in Chrome browser?

  - by Nam Gi VU

  I'm using diigo extension in Chrome browser and feel quite tired of clicking the diigo icon every time I want to bookmark. I'm looking for a way to have a hotkey for it but can't find it in the option of diigo. I tried solution suggested by makeuseof website but the diigo booklet doesn't work as great as the extension - it requires to sign in again and again... !? If you have any work-around to get the hotkey for diigo, please share! Thank you!

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• How to proxy and encrypt all my internet traffic with Win7 and Win2008R2?

  - by Malartre

  I have a Windows 7 laptop and a Windows 2008 R2 server. How can I encrypt and route all my internet request from the Win7 laptop to the Win2008R2 server? I guess the server would be called a proxy? Goal is to prevent unencrypted network snooping. I found this article about using SSH, but I would prefer an official windows integrated solution. What's the Microsoft "way" on this? http://lifehacker.com/237227/geek-to-live--encrypt-your-web-browsing-session-with-an-ssh-socks-proxy I would like this to work for all internet traffic, not just browser traffic and I would like to set this up on many Win7 clients. Carl

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• Access a PLESK website before propagation?

  - by RCNeil

  My web host uses Plesk and I want to know if there is anyway to access and view a website (with PHP and other processes being functional) without propagation of the domain name? I have found countless forums on this but they are all pretty old (circa 01-04) and involve either tricking your localhost or SSH commands and some even result in terrible security risks. I would like to access a web page directory through a browser and see it's contents while having the PHP processes carry out... before I propagate it's potential domain name. People claim this is pointless but during a site migration why on earth would you not test a site before propagating it? I'm looking for something similar to what cPanel offers i.e. http://IP.ADDRESS./~mydomain.com The only solution I could think of is storing the site in a new directory of an already functional site and then setting up databases and testing the site once it's complete. Once tested and working I should be easily be able to migrate the files to the "new" domain name's root directory and just setup a new databases and then propagate the domain name. I can't believe that Plesk V10+ still does not have a site preview method that includes PHP, JS, and Flash ability.

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• Rails: The Law of Demeter [duplicate]

  - by user2158382

  This question already has an answer here: Rails: Law of Demeter Confusion 4 answers I am reading a book called Rails AntiPatterns and they talk about using delegation to to avoid breaking the Law of Demeter. Here is their prime example: They believe that calling something like this in the controller is bad (and I agree) @street = @invoice.customer.address.street Their proposed solution is to do the following: class Customer has_one :address belongs_to :invoice def street address.street end end class Invoice has_one :customer def customer_street customer.street end end @street = @invoice.customer_street They are stating that since you only use one dot, you are not breaking the Law of Demeter here. I think this is incorrect, because you are still going through customer to go through address to get the invoice's street. I primarily got this idea from a blog post I read: http://www.dan-manges.com/blog/37 In the blog post the prime example is class Wallet attr_accessor :cash end class Customer has_one :wallet # attribute delegation def cash @wallet.cash end end class Paperboy def collect_money(customer, due_amount) if customer.cash < due_ammount raise InsufficientFundsError else customer.cash -= due_amount @collected_amount += due_amount end end end The blog post states that although there is only one dot customer.cash instead of customer.wallet.cash, this code still violates the Law of Demeter. Now in the Paperboy collect_money method, we don't have two dots, we just have one in "customer.cash". Has this delegation solved our problem? Not at all. If we look at the behavior, a paperboy is still reaching directly into a customer's wallet to get cash out. EDIT I completely understand and agree that this is still a violation and I need to create a method in Wallet called withdraw that handles the payment for me and that I should call that method inside the Customer class. What I don't get is that according to this process, my first example still violates the Law of Demeter because Invoice is still reaching directly into Customer to get the street. Can somebody help me clear the confusion. I have been searching for the past 2 days trying to let this topic sink in, but it is still confusing.

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• Context Menu for Browser to download file to specific folder

  - by elcojon

  There is this website which has customized audio files for me. I would like to save them in a special folder. Now I don't want to select the "special folder" each time in the file-chooser dialogue of my browser. I would rather prefer to have a custom entry in the context menu when I right-click the download link. This context-menu-entry should do the trick and download the file to the predefined "special folder". How would I start about that? I am using Safari and Chrome. So a solution in either browser is fine. To get into the context menu of the browser, what kind of programming do I need to do? Is it an extension, plugin, etc.? Thanks

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• Optimal way to make MySQL backups for fairly large databases (MyISAM / InnoDB)

  - by WinkyWolly

  Currently we have one beefy MySQL database that runs a couple of high traffic Django based websites as well as some e-commerce websites of decent size. As a result we have a fair amount of large databases using both InnoDB and MyISAM tables. Unfortunately we've recently hit a wall due to the amount of traffic so I've setup another master server to help alleviate reads / backups. Now at the moment I simply use mysqldump with a few arguments and it's proven to be fine.. until now. Obviously mysqldump is a slow quick method however I believe we've outgrown its use. I now need a good alternative and have been looking into utilizing Maatkits mk-parallel-dump utility or an LVM snapshot solution. Succinct short version: I have a fairly large MySQL databases I need to backup Current method using mysqldump is inefficient and slow (causing issues) Looking into something such as mk-parallel-dump or LVM snapshots Any recommendations or ideas would be appreciated - since I have to re-do how we're doing things I rather have it done properly / most efficient :).

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• How can I avoid heroku stopping my dyno?

  - by iwein

  I build MVP's for clients regularly. Often I deploy on Heroku so they can see if the product works and demo it to prospects and investors. Then I have an application deployed on heroku, and it works like a charm, if not for one little thing. The app takes about 30 seconds to start up and heroku has the annoying habit of killing dyno's if they don't get traffic. My client is using the application for demo purposes now, so the load is extremely low and intermittent. I'm looking for a solution that is preferably: cost effective can be applied to multiple apps simultaneously What is the best way to avoid having the first request taking 30 seconds?

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• Fix two-finger Trackpad Scrolling on a Macbook running Bootcamp

  - by roryok

  This is an issue that's annoyed me for some time. About a year ago, the two-finger scrolling in Windows 7 on my Macbook Pro stopped working. I discovered that a fix for this is to open Bootcamp from the control panel, go to the Trackpad tab, tick and untick "Tap to click" and click ok. This has to be done every time the machine is woken from sleep or rebooted. I'm now using Windows 8 and encountering the same issue. I've tried several different driver revisions, and none have helped. I'm sick of going through the motions. Has anyone got a solution for this?

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• How do I disable spell checking in IE 11 (Win 8.1)?

  - by ComFreek

  My issue is similar to the one mentioned here: Disable spell checking in Internet Explorer 10 (Windows 8) I am using Windows 8.1 Pro 64-bit What I've tried already: Deactivating the spelling options: From the following, borrowed screenshot from the old Windows 8 (my interface is German, therefore I couldn't create one myself), I have turned both options off and restarted IE. It's still "correcting" my texts. Searching for 'spelling correction' addons: The indicated option in the following borrowed screensnot does not exist on my PC. Is there any way of disabling it? I prefer a canonical solution if one is available. If not, I am also interested in registry hacks or other solutions.

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• Installing Bugzilla on Ubuntu 9.04 and Plesk

  - by makeflo

  Hey guys. I'm trying to install the latest Bugzilla version on my ubuntu server. (Want to use a subdomain like bugs.domain.com) I already installed all necessary perl modules and check_modules.pl doesn't show any errors. But when I'm running the testserver.pl script I get the following: TEST-OK Webserver is running under group id in $webservergroup TEST-FAILED Fetch of images/padlock.png failed I'm also not able to visit ANY file within the bugzilla folder from the browser. I'm always getting a 404 error. The bugzilla folder and all containing files are set to apache as the owner. I tried to enter the apache configuration form the installation guide in the http.include file of the domain and in the vhosts.conf file of the subdomain as well. I don't know what to do... Playing with plesks' suexecgroup doesn't bring any solution... I hope you can help me! Thanks in advance!

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• What tools should I use to edit H.264 MP4 GoPro videos?

  - by WW.

  I have recorded videos using a GoPro, which produces MP4 files containing H.264 encoded videos. I would like to do some simple editing tasks on these videos without losing quality:- Cut various scenes together Change soundtrack I'm using Windows XP Pro so I have Windows Movie Maker which seems like it should be sufficient but can not read the MP4 files that I have. Can I install a codec to allow WMM to read the MP4 files? Can I convert from MP4 to something that WMM reads? Is there a different video editing program that I should use? Free software would be preferable, but I'm willing to pay if it's a superior solution.

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