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• Ubuntu 12.04 crashing

  - by James Mullinix

  We have a server with 2x32gb sas raid 1 and 4x1tb raid 10 + 2x1tb hot spares. Whenever we try to copy the 1tb and 1.5e6 files to a backup location (even just using tty1 cp command) it fails. We have tried using backintime and dejadup, and resorted to a manual cp to an external usb2 HDD. When that failed, we tried installing an internal HDD on the mobo (not on raid) and another cp, which also fails. The failures lock up the system and we are left with an unfortunate hard reboot situation. After reboot, syslog tends to be empty (only containing newly booted data) and we haven't a clue where to start. It has been 3 weeks since our last successful backup and we are getting nervous... -using 3ware raid controller, 8gb ram and nvidia pciexpress graphics with a gigabyte mobo and xeon 4-core processor.

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• How to configure extra buttons in Logitech Mouse

  - by Rick

  Can anyone tell me how to configure all the buttons on a Logitech MX 620 mouse (http://www.logitech.com/en-us/support/mice/2987) under Ubuntu 12.04? Specifically, I like to make one of them just the ctrl key (for control clicking webpages) and another one ctrl-w to close tabs. I also normally make the scroll wheel page down for each click (otherwise it hurts my arms to be scrolling so much). I make pushing the wheel to the left = pageback and pushing to the right = page forward. I've searched for other answers to this and found something related here: http://ubuntuforums.org/showthread.php?t=1789807 But when I posted a followup post to solve the issue, no one responded --perhaps I made the mistake of posting to a question that had been "solved." I'm not sure how I'm supposed to reopen a question that is pertinent to my question but doesn't quite solve mine. Thank you for any help.

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• WUBI install not completing on Dell Latitude D600 using 10.04 and 10.10

  - by Dennis

  While trying to install a dual boot from LiveCD, WUBI seems to go through all the steps correctly. It unpacks everything, reboots, starts to finalize the install, brings up the install slide show and seems to do everything necessary. The slide show disappears and what is left is what would normally be the background, however there is no login, no panels, no response to any input or keystrokes. Using 10.04 I had a mouse cursor (working) with 10.10, not even that. In 10.04 The only way to reboot is to shutdown using the power switch. When it reboots it goes through the "finalizing install" phase again. In 10.10 if I hit the power switch it brings up a shutdown menu that doesn't respond to the keyboard, but does shutdown when the 60 seconds expire.

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• Problem while installing (K)ubuntu 14.04

  - by Armin

  Im trying to install Kubuntu 14.04 along-side Windows 7 x64 but there are problems in Disk Setup section, installer does not show my drives properly as they are, i left drive empty to install Kubuntu but this drive does not shown at all and all drives are listed some way un-regular. this is how my drives really are: i want to install Kubuntu in my drive D but this is how Disk Setup is showing my drives: and when i click on manual: i even shrink-ed my drive D to assigning for root, home and swap but there are bot shown to be chosen. where is the problem? how can i tell installer to assign the drives that i want?

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• Information about SATA, IDE (PATA) controllers

  - by Adam Matan

  I have a remote computer on which I want to install a new hard drive for rsync backup. The problem is, I don't know what controller technology is used (PATA, SATA, SATA2, ...) and how many available slots are left. I want to spare me an unnecessary drive just for opening the chassis and looking into wires. How do I query the SATA or PATA controllers? I'm interested in the following points: Which controllers exist in the machine How many (and which) disks are attached to each controller How many available slots are there

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• How can I reach over 100% volume with a keyboard shortcut?

  - by suli8

  sometimes the sound of videos isn't enough for me. so i reach the sound indicator , over sound preferences and change it to a level higher than 100%. the question is how can i do it from the keyboard? now i can control the volume from the keyboard but it's maximum is 100%. is there a way to do that? EDIT 1: how to use amixer to do it? (as Lyrositor suggested) EDIT2: the closest answer , as Jo-erland, suggested is to set a hotkey to bring up the gnome-volume-control, and then to use left and right arrows to change volume also beyond the 100% mark. any other suggestions, to make this 1 step only? is it possible to set a hotkey to do a sequence of commands ?

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• How do I reset my Ubuntu user password?

  - by Myself

  I lost my Ubuntu user account password... I saw some other questions on this topic that had answers telling me to restart the computer, press the left shift key after BIOS, go to root, type "passwd [username]" and all this other stuff, but none of that worked. After I typed a new password and retyped it, it gave me an error message saying something like "Authentication Manipulation Error." There was another question complaining about this, but there weren't any useful answers that worked. Does anybody know of a way for me to retrieve or reset my password? Am I doing something wrong with that method I mentioned?

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• 12.04 - how to install alsa 1.0.27, to resolve dell sound card microphone echo issue to local speaker?

  - by YumYumYum

  Problem: Microphone in or Line in microphone audio is instantly captured and sinked to the local speaker, cause horrible echo problem About my system: (NO PulseAudio used (cause its always crash and unstable for my system/hardware, so auto killed and never used) I have ALSA 1.0.25 version running in Ubuntu 12.04 / 64-bit, with random kernel installed: kernel 3.5.0-17-generic kernel 3.8.x kernel 3.11.x But the echo problem is not resolved after trying all kernel. So, last option left now is to use ALSA 1.0.27 to see if that solves the problem. Is there any away to use ALSA 1.0.27 from any PPA to install in the Ubuntu 12.04? (without making it from source, to avoid breaking other packages and dependencies)

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• How do I install xulrunner in 12.04?

  - by chessplayer

  I am trying to migrate a virtual machine I use for my classes at the university from 10.04 to 12.04 and in that I am using xulrunner so that first, I can have SQLiteManager as a stand alone app next, KNIME can provide help for its nodes I tried adding the the mozilla ppa as described in some posts, e.g. here or here, but when I search for xulrunner in Synaptic I get no match. I read in this link, that xulrunner was left out intentionally, which, frankly, I think is a bad decision! Anyway, does anyone know a way out of this, i.e. how to get xulrunner for 12.04? Any help appreciated!

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• Black screen after installing Ubuntu 11.10

  - by Abbas

  I downloaded Ubuntu 11.10 one week ago and burned it to a CD. I installed it on my system which has a 1.5 TB hard. It installed successfully and I clicked on the restart button. The computer restarted and I chose the first option, which was to load Ubuntu. A black screen would appear with a cursor in top left hand side and I think the system was hung. I repeated this process by erasing the last Ubuntu install but I faced a similar problem. Can anybody help me?

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• 'Situations gone wrong' for web apps...

  - by AvgJoe007

  Hi all I know there's some decent material floating around relating to more specific areas, but wanted to get some opinions from people who have had bad experiences in the past. I have a project where I can have a say on the design of a B2C web app, which has some external API interfaces. UX is crucial as is speed. Not sure what technology will be used at this stage. In designing this application, I want to make sure obvious features are not left out (i.e. ones that make maintenance/development easier). So can you guys tell me about 'situations gone wrong' that could have been avoided had more consideration taken place? Am looking to gather feedback in general, so don't worry if your example is industry/technology specific - so long as it pertains to web. Thanks for reading, I look forward to your responses!

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• the window of calender is out of the screen

  - by draw

  hi, I've been using a external 21.5' monitor for my laptop of 12.1' monitor, and moved my top panel to the right and add a new panel to the bottom edge of the screen. A screenshot of the right part of my desktop is here: http://i.imgur.com/kOHwT.png As you see, The window of the calender is out of the screen. The alt+left mouse button did not work. How do you move the calender window? update: I managed to come up with a solution to get the window or panel of cal in the screen. Just remove the panel of clock and re-add it. But unfortunately, the preferences are lost. You have to reset the preferences, such as locations... but after re-adding 2 locations, the window of cal panel was just shown as the same of the previous screenshot before.

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• Scrolling Box2D DebugDraw

  - by onedayitwillmake

  I'm developing a game using Box2D (javascript implementation - Box2DWeb), and I would like to know how I can pan the debug draw. I know the usual answer is - don't use debug draw, it's just for debugging. I'm not, however not all my objects are on the same screen, and i'd like to see where they are in the physics representation. How can I pan the debug drawing? As you can see the debug draw stuff, is show on the top left, but it only shows a small part of the world. Here is an example of what I mean: http://onedayitwillmake.com/ChuClone/ The game is open source, If you'd like to poke through and note something that perhaps i'm doing something that is obviously wrong: https://github.com/onedayitwillmake/ChuClone

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• if ('constant' == $variable) vs. if ($variable == 'constant')

  - by Tom Auger

  Lately, I've been working a lot in PHP and specifically within the WordPress framework. I'm noticing a lot of code in the form of: if ( 1 == $options['postlink'] ) Where I would have expected to see: if ( $options['postlink'] == 1 ) Is this a convention found in certain languages / frameworks? Is there any reason the former approach is preferable to the latter (from a processing perspective, or a parsing perspective or even a human perspective?) Or is it merely a matter of taste? I have always thought it better when performing a test, that the variable item being tested against some constant is on the left. It seems to map better to the way we would ask the question in natural language: "if the cake is chocolate" rather than "if chocolate is the cake".

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• How to give control over keyboard back to X server after Alt + SysRq + R trick

  - by Øystein Tråsdahl

  Situation: an application freezes the X server and no keyboard input works. So I use Alt+SysRq+R to take the keyboard out of raw mode (make the kernel take control of the keyboard away from the X server). I can then type Ctrl+Alt+F1, kill the bad processes, and everything works again. So far so good. But the keyboard is still in the hands of the kernel, making Alt+Left/Right shortcuts for Decr_Console/Incr_Console. This is annoying, and I want to give control over the keyboard back to the X server. I have tried typing Alt+SysRq+R again, this does not switch things back. I have also tried the command kbd_mode -u, but nothing changes. Any advice?

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• How can the original icons and fonts be restored in ubuntu 12.10?

  - by Harsh

  Recently i installed cairo-dock and changed the original ubuntu theme. then i uninstalled it. but the icons on the left side didn't restored into its original look. Somewhere I found a command sudo apt-get autoremove --purge light-themes sudo apt-get install light-themes After running this command the theme didn't changed but it seems that the font of the original ubuntu changed a little. I want the theme of ubuntu as it was when i newly installed it. Moreover, the alt+tab and some other key combination not working normally. please help.

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• Server 2012R2 – PowerShell Web Access

  - by Waclaw Chrabaszcz

  Originally posted on: http://geekswithblogs.net/Wchrabaszcz/archive/2014/05/17/server-2012r2--powershell-web-access.aspxHaha … Sometimes I'm joking that there is nothing worse than Linux fanboi imprisoned in Windows engineer's body. Maybe someday I will start blogging about my noob's experiences. However let's stick to the point. Sometimes the easiest solutions are the best. After couple of tries how to reach left pocket using right hand I'm going to follow easy path. Today's plan is very easy, I'm going to take advantage of Server 2012 and install Web gateway to PowerShell console. After that I would be able execute PoSH from any device including Linux. Install-WindowsFeature –Name WindowsPowerShellWebAccess –IncludeManagementToolsInstall-PswaWebApplication –UseTestCertificateAdd-PswaAuthorizationRule –UserName * -ComputerName * -ConfigurationName *  Let's test it …

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• Make objects slide across the screen in random positions

  - by user3475907

  I want to make an object appear randomly at the right hand side of the screen and then slide across the screen and disapear at the left hand side. I am working with libgdx. I have this bit of code but it makes items fall from the top down. Please help. public EntityManager(int amount, OrthoCamera camera) { player = new Player(new Vector2(15, 230), new Vector2(0, 0), this, camera); for (int i = 0; i < amount; i++) { float x = MathUtils.random(0, MainGame.HEIGHT - TextureManager.ENEMY.getHeight()); float y = MathUtils.random(MainGame.WIDTH, MainGame.WIDTH * 10); float speed = MathUtils.random(2, 10); addEntity(new Enemy(new Vector2(x, y), new Vector2(-0, -speed))); }

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• Is it costly to leave the Console and Script features enabled in Firebug?

  - by parisminton

  For some time now, I've run Firebug constantly enabled to do quick DOM inspections, leaving the Console and Script panels disabled. I'm just starting to use these two features so I don't have to keep using alerts for testing and debugging. I enable them while I use them and turn them back off when I'm done. I'd like to know if these particular features can slow things down such that they shouldn't be left on round-the-clock. Like do they slow down page loads, use inordinate chunks of memory or something? I don't see anything about it in the Firebug wiki.

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• Is it costly to leave the Console and Script features enabled in Firebug?

  - by parisminton

  For some time now, I've run Firebug constantly enabled to do quick DOM inspections, leaving the Console and Script panels disabled. I'm just starting to use these two features so I don't have to keep using alerts for testing and debugging. I enable them while I use them and turn them back off when I'm done. I'd like to know if these particular features can slow things down such that they shouldn't be left on round-the-clock. Like do they slow down page loads, use inordinate chunks of memory or something? I don't see anything about it in the Firebug wiki.

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• Button click event in the Ogre3d for ios

  - by user1184398

  Is it possible to access the button click event by using the cursor? These are the steps I followed for the button click event using the SDK trays m_pTrayMgr = new OgreBites::SdkTrayManager("TrayMgr", m_pRenderWnd, m_pMouse, this); I create the buttons m_LeftBtn = tray->createButton(OgreBites:: TL_LEFT, "sdk_button_down", "Left"); m_RightBtn = tray->createButton(OgreBites::TL_RIGHT, "sdk_button_up", "Right"); And I am calling this function void OgreFramework::buttonHit(OgreBites::Button* button) { if(button->getName().compare("sdk_button_down") == 0 ) { printf("XXX"); } } But the button hit function is not getting called... Could somebody provide some sample code? I'm not using any cursor for the click.

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• how does the rectangle bounds (x,y,width,height) in libgdx work

  - by JG22

  I cant work out how to use the rectangle bounds in libgdx I am currently using the superJumper example and have 2or 3 examples with that are pause Bounds = new Rectangle(320 - 64, 480 - 64, 64, 64); this is the pause button in the top right corner resume Bounds = new Rectangle(160 - 96, 240, 192, 36); this is a rectangle resume button in the middle of the page in the menu that comes up when the pause button is pressed. basically my question is aimed at the 360 -64 and 160 -96 because I don't know why this is used I need to create a rectangle that covers the left side of the screen and the same on the right because I want to create a on screen buttons, I have already created the does for these buttons and I have managed to get them to work but I can move the rectangles to where I want. Thank you If you can help

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• Doubts regarding the behaviour of 'autoremove' command and '--auto-remove' flag

  - by Jasper Loy

  After reading several man pages and forums, I thought that running 'apt-get autoremove' without any following argument removes all unused dependencies left on the system, while running 'apt-get autoremove xxx' removes xxx together with its unused dependencies. However I found this to be not true. Running 'apt-get autoremove xxx' not only removes xxx together with its unused dependencies, it also removes all other unused dependencies. So I tried to run 'apt-get remove --auto-remove xxx', thinking that this would remove only xxx and its unused dependencies. To my surprise, this also removed xxx, its unused dependencies and all other unused dependencies. Is this the intended behaviour of the commands or a bug? Is there any quick way to remove xxx and its unused dependencies without removing other unused dependencies?

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• Ubuntu 12.10 - VirtualBox not sharing internet with guest system

  - by Fernando Briano

  I went from ArchLinux to Ubuntu on my dev box. I use VirtualBox to test web sites on Windows and IE. I have my Windows 7 VirtualBox image running on Ubuntu's VirtualBox. Back with ArchLinux, internet worked "out of the box" on the Windows boxes. I left the default options on the box's Network Options (NAT). The Windows machine shows as "connected to ethernet" but reports: The dns server isn't responding So I can't access Internet from there. I tried searching for Ubuntu's official docs but they seem pretty outdated. I tried using my old boxes from Arch (which boot normally but have no internet) and creating a new box from Ubuntu itself, but still get the same results. Update: I'm using VirtualBox 4.1.18 from Ubuntu's repository (apt-get install virtualbox).

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• Get collision details from Rectangle.Intersects()

  - by Daniel Ribeiro

  I have a Breakout game in which, at some point, I detect the collision between the ball and the paddle with something like this: // Ball class rectangle.Intersects(paddle.Rectangle); Is there any way I can get the exact coordinates of the collision, or any details about it, with the current XNA API? I thought of doing some basic calculations, such as comparing the exact coordinates of each object on the moment of the collision. It would look something like this: // Ball class if((rectangle.X - paddle.Rectangle.X) < (paddle.Rectangle.Width / 2)) // Collision happened on the left side else // Collision happened on the right side But I'm not sure this is the correct way to do it. Do you guys have any tips on maybe an engine I might have to use to achieve that? Or even good coding practices using this method?

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