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• Proprietary Driver missing after Kernel upgrade

  - by Chris

  I recently upgraded my kernel to the Linux 3.4 kernel. Upon doing so, I found that it zapped my proprietary driver for my graphics card. As an alternative, I had saved Catalyst 12.8, but now it will not open through Software Center. I tried several other terminal methods, but it seems that many of these postings are bunk. They only work until you're almost done and then you get errors. I just need a little help from somebody who has been there, as I am new to Ubuntu. I'm kind of afraid to reboot because this is my 3rd full load of Ubuntu. Any ideas?

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• Today in the OTN Lounge (Monday October 1, 2012)

  - by Bob Rhubart

  Here's a quick rundown of today's activities in the OTN Lounge: (OTN Lounge hours today: 8:00 am - 7:00 pm)  9:00 am - 1:00 pm RAC Attack Learn about Oracle Real Application Clustering (RAC) in this collaborative event. You'll work with experts from the IOUG RAC SIG to get an Oracle Database 11gR2 RAC cluster running inside a virtual machine. For more information: RAC attack at Oracle Open World (Pythian Blog) RAC Attack - Oracle Cluster Database at Home/Events (WikiBooks) 4:00 pm - 8:00 pm Oracle Social Network Developer Challenge Office Hours Find information, expertise, and a collaborative work environment for those participating in the OSN Developer Challenge. Click here for more information. The OTN Lounge is located in the Howard St. Tent, between 3rd and 4th, directly between Moscone North and Moscone South. Access to the OTN Lounge requires an Oracle OpenWorld or JavaOne conference badge.

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• What do you use to bundle / encrypt data?

  - by David McGraw

  More and more games are going the data driven route which means that there needs to be a layer of security around easy manipulation. I've seen it where games completely bundle up their assets (audio, art, data) and I'm wondering how they are managing that? Are there applications / libraries that will bundle and assist you with managing the assets within? If not is there any good resources that you would point to for packing / unpacking / encryption? This specific question revolves around C++, but I would be open to hear how this is managed in C#/XNA as well. Just to be clear -- I'm not out to engineer a solution to prevent hacking. At the fundamental level we're all manipulating 0's and 1's. But, we do want to keep the 99% of people that play the game from simply modifying XML files that are used to build the game world. I've seen plenty of games bundle all of their resources together. I'm simply curious about the methods they're using.

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• 12.04 Ambiance dark side bar issue when clicking folder on desktop

  - by Lou Crittenden

  Concerning an updated custom ambiance theme: why is there no dark side bar when I click on a folder, like the home folder icon on the desktop, but the theme works as planned when I type nautilus in the terminal to open the home folder or when opening a folder up as root? Permissions issue perhaps? Note: I am using Cinnamon instead of Unity and I noticed it uses the Nemo file manager instead of Nautilus and I suspected that it was causing me the grief. I uninstalled it and now am using Nautilus only as the file manager. I found this out when I typed: sudo killall nemo and the problem went away. I'll see how this goes (and hopefully cinnamon doesn't care about it...) Has anyone else had any issues with this?

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• USB Audio Device Loopback Through Speakers

  - by matto1990

  I have a USB turntable which when plugged in to my ubuntu 10.10 machine appears in the audio settings as an input device (USB PnP Audio Device Analog Stereo) like a microphone. What I'd like to be able to do it to have the sound for that audio device played back through the audio output (speaker or whatever). I'm not too worried if there's a slight delay between the audio coming in and it being played out through the speakers. As far as I'm aware this is refereed to as software loopback. I can achieve exactly what I want if I open Audacity, enable software loopback and press record. Obvious this isn't ideal as I don't really want it recording what I'm playing all the time. I know this is possible because of the Audacity example however I'd like to know if there's a way to do it without it recording. I've search around for a while for a piece of software that does this, however I couldn't get anything even close. Any help would be greatly appreciated.

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• Video player with good subtitle rendering

  - by Oxwivi

  Is there any way to improve the subtitle rendering capabilities of Totem? The subtitles positioning seems to be hard-coded in it and even though the style is user-customizable, it does not confirm to the formatting in subtitle data. In some scenes where writings appear, the subtitles are supposed to appear next to those along with what is being said at that moment. However, on those scenes the translations of text onscreen appears on the default subtitle area with nothing about the things being said. The correct rendering are according to the open-source Windows video player, Media Player Classic - Home Cinema. There are no Linux port as far as I'm aware. If VLC's subtitle support is the same as in Windows, it won't work for me, period. Please suggest anyway to improve subtitle rendering in Totem, other video players, or a way to port MPC-HC.

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• How can I map the docky anchor button so that it will launch the unity dash?

  - by user76179

  Example of a Docky Dock I have the Docky dock on my desktop. It has an anchor logo button (as seen on the left side image of the link above) that brings up the Docky settings. I want to map it so that it opens my dash instead. I believe I can do this through gconf and by setting the docky button to either my super key or the necessary path required to open the dash function (but I do not know this path or how to code a button to a keyboard key). How can I map the docky anchor button so that it will launch the unity dash (as similar to when you simply tap the super key)?

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• Ubuntu 12.04 freezes on suspend hp folio 13

  - by Tom O'Brien

  I have ubuntu 12.04 running from a usb HDD on my hp folio 13. Everything is working, but at first the screen would only blacken when i closed the lid and didn't suspend. So, I followed this guide: https://github.com/deliciousrobots/ubuntu-hp-folio-13 after that, it sort of worked, but very unreliably. Now suspend doesn't even work and it always freeze. Usually the screen will turn black but I can still see my mouse. Sometimes my desktop background will show but the launcher wont be there or anything. Once I didn't have the menu bar on any windows or the top of the screen but the windows I had left open were still (sort of) responsive. Whats wrong? Help Thanks

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• Beggining OpenGL vs beggining DirectX and some question about the philosophical difference between them

  - by jokoon

  I'm begginning with Direct X at school, and my teacher said it was harder to begin with than OpenGL, but I read several things that in fact, Direct X was more advanced than OpenGL in terms of recent graphic cards features. Since I'm far from wanting to do top notch effects, which can already be implemented with existing engines and/or shaders, I wanted to know your opinion: Can OpenGL be considered like a more basic, KISS, hardware agnostic, graphic library to just do 3D with acceleration, and consider DirectX like a top notch, game-oriented graphic API that will always support the next-gen 3D chips ? Citation from wikipedia on http://en.wikipedia.org/wiki/Id_Tech_5 : John Carmack mentioned in his keynote at QuakeCon 2007 that the id Tech 5 engine will not be using the DirectX 10 API. I don't want to seem like I'm minding open source because Carmack does and because he is famous, it's just that android and iPhone are out there, and Direct X doesn't seems to me to be the necessary API to know, since Windows supports OpenGL, and since the 360 is just a console among other consoles.

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• The October 2013 Virtualization Newsletter is Here!

  - by Chris Kawalek

  The October 2013 edition of the Oracle Virtualization Newsletter is here! Some of the highlights from this information packed issue: New Release: Oracle VM VirtualBox 4.3. Airbus Selects Oracle Secure Global Desktop to Increase Efficiency and Accelerate Time to Market. Open Universities Australia Realizes Valuable Savings and Simplifies IT with Oracle VM. Oracle Virtualization Recap from Oracle OpenWorld 2013. Information on the "What's New with Oracle Secure Global Desktop" webcast, happening on November 7th. Plus, videos, white papers, customer spotlights, information on training, and much more! You can sign up to get the newsletter in your inbox automatically, or you can read this edition online right now. -Chris

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• Code refactoring with Visual Studio 2010 Part-4

  - by Jalpesh P. Vadgama

  I have been writing few post with code refactoring features in Visual Studio 2010. This post also will be part of series and this post will be last of the series. In this post I am going explain two features 1) Encapsulate Field and 2) Extract Interface. Let’s explore both features in details. Encapsulate Field: This is a nice code refactoring feature provides by Visual Studio 2010. With help of this feature we can create properties from the existing private field of the class. Let’s take a simple example of Customer Class. In that I there are two private field called firstName and lastName. Below is the code for the class. public class Customer { private string firstName; private string lastName; public string Address { get; set; } public string City { get; set; } } Now lets encapsulate first field firstName with Encapsulate feature. So first select that field and goto refactor menu in Visual Studio 2010 and click on Encapsulate Field. Once you click that a dialog box will appear like following. Now once you click OK a preview dialog box will open as we have selected preview reference changes. I think its a good options to check that option to preview code that is being changed by IDE itself. Dialog will look like following. Once you click apply it create a new property called FirstName. Same way I have done for the lastName and now my customer class code look like following. public class Customer { private string firstName; public string FirstName { get { return firstName; } set { firstName = value; } } private string lastName; public string LastName { get { return lastName; } set { lastName = value; } } public string Address { get; set; } public string City { get; set; } } So you can see that its very easy to create properties with existing fields and you don’t have to change anything there in code it will change all the stuff itself. Extract Interface: When you are writing software prototype and You don’t know the future implementation of that then its a good practice to use interface there. I am going to explain here that How we can extract interface from the existing code without writing a single line of code with the help of code refactoring feature of Visual Studio 2010. For that I have create a Simple Repository class called CustomerRepository with three methods like following. public class CustomerRespository { public void Add() { // Some code to add customer } public void Update() { //some code to update customer } public void Delete() { //some code delete customer } } In above class there are three method Add,Update and Delete where we are going to implement some code for each one. Now I want to create a interface which I can use for my other entities in project. So let’s create a interface from the above class with the help of Visual Studio 2010. So first select class and goto refactor menu and click Extract Interface. It will open up dialog box like following. Here I have selected all the method for interface and Once I click OK then it will create a new file called ICustomerRespository where it has created a interface. Just like following. Here is a code for that interface. using System; namespace CodeRefractoring { interface ICustomerRespository { void Add(); void Delete(); void Update(); } } Now let's see the code for the our class. It will also changed like following to implement the interface. public class CustomerRespository : ICustomerRespository { public void Add() { // Some code to add customer } public void Update() { //some code to update customer } public void Delete() { //some code delete customer } } Isn't that great we have created a interface and implemented it without writing a single line of code. Hope you liked it. Stay tuned for more.. Till that Happy Programming.

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• OUYA and Unity set up problems

  - by Atkobeau

  I'm having trouble with the Unity / OUYA plugin. I'm using Unity 4 with the latest update on a Windows 7 machine. When I open the starter kit and try to compile the plugin I get the following error: Picked up _JAVA_OPTIONS: -Xmx512M And if I try to Build and Run I get this error: Error building Player: ArgumentException: Illegal characters in path. I'm stumped, I've gone through lots of forum posts here and on stackoverflow and I can't seem to resolve it. My environment variables look like this: PATH - C:\Users\dave\Documents\adt-bundle-windows-x86_64-20130219\sdk\tools; C:\Users\dave\Documents\adt-bundle-windows-x86_64-20130219\sdk\platform-tools\ JAVA_HOME - C:\Program Files (x86)\Java\jdk1.6.0_45\ Everything in the OUYA Panel is white Any ideas?

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• Investigating a big C++ project from its source code [closed]

  - by user827992

  Possible Duplicate: What is the best method to start understanding BIG project source code? I have a project that I would like to dissect to learn something new from it. This project is about 200 megabytes. For me, it is just impossible to open every cpp and hpp file and read each and every one. I also don't know what is the best approach in this case. Many people on the internet are looking for an UML tool to generate some kind of graph. I think that UML works well when you are starting a project and you want to express the business logic of your classes and methods. In my opinion UML is totally useless when studying a project only from its source code. Also UML is an OO language, in a large sized C++ project I find a lot of stuff that is not an object and can express some other kind of paradigm. Can you name a tool or a class of software that can help with this?

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• KVM switching from lower resolution system resets Ubuntu high resolution

  - by Ed Manet

  I'm running 12.04 desktop on my main desktop and it's hooked to a KVM (IOGear miniview) that shares the peripherals with a SLES 11 machine. The SLES 11 machine can't get the same resolution as the Ubuntu machine because of different graphics hardware. If I switch from Ubuntu to SLES and stay there too long, when I switch back to Ubuntu the screen resolution on Ubuntu is reset to the same as SLES. I can get it back easily just opening the Displays configuration; it immediately resets to the high resolution as soon as the Displays window opens. But all my open windows have been maximized and it's a P.I.T.A. having to resize them all again. How do I get it to just stay at the high resolution between switching between systems? Is there a setting in the Xorg conf file I need to set?

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• Grab sound of a SDL game with ffmpeg/avconv

  - by Peregring-lk

  I'm trying to make a screencast of a SDL game which I developed some years ago, with the following command: sleep 5 && avconv -f x11grab -s 1366x768 -r 25 -i :0.0 -same_quant screen_cast.mkv (in this 5 seconds of sleep, I open the game). But the generated video (screen_cast.mkv) doesn't capture audio. I use for my game the SDL_Mixer library, with default configuration (22050 for frequency, AUDIO_S16SYS for format, and 2 channels). What's the problem? (with options -f alsa -i pulse it doesn't work either).

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• Powershell – script all objects on all databases to files

  - by Nigel Rivett

  <# This simple PowerShell routine scripts out all the user-defined functions, stored procedures, tables and views in all the databases on the server that you specify, to the path that you specify. SMO must be installed on the machine (it happens if SSMS is installed) To run - set the servername and path Open a command window and run powershell Copy the below into the window and press enter - it should run It will create the subfolders for the databases and objects if necessary. #> $path = “C:\Test\Script\" $ServerName = "MyServerNameOrIpAddress" [System.Reflection.Assembly]::LoadWithPartialName('Microsoft.SqlServer.SMO') $serverInstance = New-Object ('Microsoft.SqlServer.Management.Smo.Server') $ServerName $IncludeTypes = @(“tables”,”StoredProcedures”,"Views","UserDefinedFunctions") $ExcludeSchemas = @(“sys”,”Information_Schema”) $so = new-object (‘Microsoft.SqlServer.Management.Smo.ScriptingOptions’) $so.IncludeIfNotExists = 0 $so.SchemaQualify = 1 $so.AllowSystemObjects = 0 $so.ScriptDrops = 0 #Script Drop Objects $dbs=$serverInstance.Databases foreach ($db in $dbs) { $dbname = "$db".replace("[","").replace("]","") $dbpath = "$path"+"$dbname" + "\" if ( !(Test-Path $dbpath)) {$null=new-item -type directory -name "$dbname"-path "$path"} foreach ($Type in $IncludeTypes) { $objpath = "$dbpath" + "$Type" + "\" if ( !(Test-Path $objpath)) {$null=new-item -type directory -name "$Type"-path "$dbpath"} foreach ($objs in $db.$Type) { If ($ExcludeSchemas -notcontains $objs.Schema ) { $ObjName = "$objs".replace("[","").replace("]","") $OutFile = "$objpath" + "$ObjName" + ".sql" $objs.Script($so)+"GO" | out-File $OutFile #-Append } } } }

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• Why is Conway's "Game of Life" used for code retreats?

  - by blunders

  Code Retreat is an all-day training event that focuses on the fundamentals of software development. There's a "global" code retreat day coming up, and I'm looking forward to it. That said, I've been to one before and have to say there was a huge amount of chaos... which is fine. One thing that I still don't get is why the "Game of Life" is a good problem for TDD, and what good and bad TDD for it feels like. Realize this is a pretty open ended question, so feel free to comment.

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• How to run applications as root?

  - by ????? ????????

  I am having some strange issue with Kate and Kwrite. When I click on Open File, it crashes with segmentation fault. I am a complete newbie to Linux, and I think the issue is that I am not running the application as root. How do I run applications as root in Ubuntu? Is it bad practice to do this? What is the purpose of the whole root thing, where even though we need to use root so frequently, it is not utilized as default?

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• Why I can't see my desktop icons in ubuntu 13.04?

  - by Edgar

  I just installed Ubuntu 13.04 in my laptop Aspire-M3-5871TG, and I can't see anything (neither icons, ...). Only is visible the desktop background but I can open and work with the terminal. Maybe the problem is related with Nvidia Geforce GT 640M vs Unity. I've tried several commands: dconf reset -f /org/compiz/ unity --reset-icons &disown and unity --replace & but nothing happens. I've tried other commands as well: sudo add-apt-repository ppa:ubuntu-x-swat/x-updates sudo apt-get update sudo apt-get install nvidia-current and nothing happens. I've also tried to install tweak but is it not possible to find it. Thus, I can't do nothing ... Definetely my laptop is not compatible with Ubuntu 13.04?

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• T-SQL Tuesday #007 and T-SQL Tuesday Has a Logo

  - by Adam Machanic

  This month’s T-SQL Tuesday is hosted by Jorge Segarra, the “SQL Chicken.” The topic is rather open ended: What is your favorite new(ish) SQL Server feature? Love the DACPAC? Can’t wait for PDW? Post about it and tell us why! In other T-SQL Tuesday news, we now have a logo. Those of you who are participating in the event, take notice; the rules have changed. Now that we have a logo we’re simplifying the linkback and subject guidelines a bit. Henceforth you can title your post however you want. It...(read more)

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• How to find corrupted files?

  - by rafalcieslak

  Some files on my hard drive are corrupted (no worries, nothing system-related, just a junk of data files, mp3 etc.). I found that out when I tried to burn them all to a DVD, the burning application show a message that it cannot read the files as they are corrupted. [This is probably a drive issue, it had happened me once or twice already]. I don't care about recovering them, but I have to determine which ones are corrupted. I cannot check by manually opening them all, as there are thousands of them. Is there any tricky way to check all the files and list the ones that may cause problems when tried to open?

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• Logitech m510 mouse not working on 12.04 64bit

  - by Alonso

  When I run lsusb, this shows up: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver I have followed and done all of the stuff in: http://askubuntu.com/questions/154963/ubuntu-cannot-detect-my-logitech-wireless-m510-mouse Yet my mouse still fails to work. When trying to install HIDpoint, this appears after entering Y: libpng does not exist libtiff does not exist Gathering System information and generating a log Launching HIDPoint Installer ./hidpointsetup: error while loading shared libraries: libpng.so.3: cannot open shared object file: No such file or directory What can I do to fix this?

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• How to determine file in "Error opening file for reading" error

  - by Mark Hildreth

  Since Ubuntu 12.04, whenever I open aterm, I get the following error message: Error opening file for reading: Permission denied aterm still opens and runs correctly, but I get that error message. I'd like to figure out what all this is about. Is someone familiar with this specific error for aterm? Otherwise, is there some log that records files that are attempting to be opened so I can determine what file it's complaining about? I've grepped my log files for "aterm" without success. Other tips for determining what the issue is?

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• How to play WMV files?

  - by Isaiah Bugarin

  I tried playing a WMV file in VLC and it told me something along the lines of Unable to play WMV3 files. Unfortunately there is no way for you to fix this. When I try to open the same file in MPlayer, it tells me an Internal data stream error occurred. I finally got it to start playing in KPlayer, but it is really sketchy; it's black and white and there's a few random blue lines down the middle of the video. So is there any support for WMV3 files? P.S. the same WMV file plays fine on my PC. A different WMV file plays on Ubuntu fine.

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• Scalable distributed file system for blobs like images and other documents

  - by Pinnacle

  Cassandra & HBase both do not efficiently support storage of blobs like images. Storing directly on HDFS stresses the Namenode because of huge number of files. Facebook uses Haystack for images and attachments storage, but this is not open source. So is Lustre a good choice for distributed blob storage? I have read that Amazon S3 is used by many, but this would cost money and personally, I would not like to rely on third party system. What are other suggestions?

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