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• Pandaboard crash on startup or freeze after minutes

  - by Meach

  I just received my Pandaboard ES (rev B) and I am having trouble after installing ubuntu-omap4-addons. Once I copied the image ubuntu-12.04-preinstalled-desktop-armhf+omap4.img on my sd card and boot the pandaboard with it, I run the following commands: sudo add-apt-repository ppa:tiomap-dev/release sudo apt-get update sudo apt-get dist-upgrade sudo apt-get install ubuntu-omap4-extras At the end of the installation of ubuntu-omap4-extras, Ubuntu tells me that a problem occurs when the console displays: ldconfig deferred processing now taking place Clicking on "report the problem" tell me that the problem concerns pvr-omap4-dkms. I read somewhere that this can happen and it is better to reinstall pvr-omap4-dkms. Which I am doing by running: sudo apt-get install --reinstall pvr-omap4-dkms I reboot. Then the board has sometimes difficulties to start Ubuntu: it freezes during the loading page, only action I can do is unplugging the board to start it again. Some other times, Ubuntu load successfully but then freeze at another random time, in the range 20 - 40 minutes. I searched on internet for similar bug and found this: https://bugs.launchpad.net/ubuntu/+source/linux-ti-omap4/+bug/971091 So I typed this in: update-rc.d ondemand disable apt-get -y install cpufrequtils echo 'ENABLE="true" GOVERNOR="performance" MAX_SPEED="0" MIN_SPEED="0"' > /etc/default/cpufrequtils cpufreq-set -r -g performance reboot But it doesn't seems to fix the bug. Another detail: on startup, before the loading screen of Ubuntu (when there is the two penguins displayed :)), it shows this: [0.297271] CPU1: Unknown IPI message 0x1 [0.308990] omap_hwmod: mcpdm: _wait_target_ready error: -16 [0.354705] omap_mux_get_by_name: Could not find signal uart1_cts.uart1_cts [0.354766] omap_hwmod_mux_init: Could not allocate device mux entry [2.107086] thermal_get_slope:Getting slope is not supported for domain gpu [2.107116] thermal_get_offset:Getting offset is not supported for domain gpu [2.107299] stm_fw: vendor driver stm_ti1.0 registered [8.725555] OMAPRPC: Registration of OMAPRPC rpmsg service returned 0! debug=0 Any idea what can be wrong? I am not that good with Ubuntu so any help will be appreciated. Cheers! Meach

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• Control mouse pointer with keyboard without a number pad

  - by mloman

  I have dell laptop which does not have a numberpad, only a set of numbers above the qwerty layout. I want to be able to control the mouse cursor with my arrow keys. I activated the mouse keys by going to "System Setting" - "Universal Access" - "Pointing and Clicking" and activate "Mouse Keys" But still, I am unable to control the mouse cursor. How do I get this going so I don't have to take my hands off the keyboard?

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• How to make my microphone unmuted on startup?

  - by fiktor

  Every time I boot the microphone is muted. I want it to be unmuted instead. Of course I can do it by 6 easy steps every time: press sound icon in the upper right of the screen. press "Sound settings..." item in the bottom. wait about 10 seconds until a window loads. switch to input tab. uncheck "Mute" checkbox near a microphone icon. close the window. But I want it to be unmuted by default. I guess that in linux world this should be changing 0 to 1 in some line in some configuration file, but I don't really know, where is this line located.

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• Grub2 with BURG: duplicate Windows entries, how do I remove one?

  - by Tomas Lycken

  I have a dual boot system with Ubuntu 12.04 and Windows 7, using GRUB2 (with Burg) as boot loader. For some reason, the Windows installation shows up twice in the boot menu: Ubuntu GNU/Linux, with Linux 3.2.0-24-generic Ubuntu GNU/Linux, with Linux 3.2.0-24-generic (recovery mode) Windows 7 (loader) (on /dev/sda1) Windows 7 (loader) (on /dev/sda2) If I look in my partition table, /dev/sda2 is C:\ of the Windows installation, and /dev/sda1 is the "System Reserved" partition (which, IIRC, is Windows' own bootloader). Furthermore, gparted shows /dev/sda2 - but no other partitions - with a boot flag: What is going on here? I'd like to have only the entries for Ubuntu and one entry for Windows in my boot menu - how do I remove one of them?

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• Ubuntu 12.04 not Locking Encrypted Hard Drive on Log Out

  - by J.L.

  I'm running Ubuntu 12.04 with Gnome 3.4. I have two external hard drives. I encrypted both using Ubuntu's Disk Utility. When I use Nautilus to mount them, I'm asked for my decryption password. Regardless of whether I then click "Forget password immediately" or "Remember password until you logout", though, I find that Ubuntu does not lock the drives when I log out. Rather, when I log back in, they're still mounted. (To be clear, restarting the computer does unmount them so that they require the password on the next log in.) I'm concerned that these drives are remaining unprotected when I log out without restarting my computer. I would be grateful for help understanding whether this is a bug. Thank you!

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• Wireless ad-hoc network between Ubuntu and MS Windows

  - by nixnotwin

  I have setup a wireless ad-hoc connection between two laptops: one running ubuntu and the other MS XP. I have assigned static IP to both the laptops and both get connected quite easily. I can access all ubuntu services like ssh, squid, samba from the laptop running MS Windows. But from Ubuntu machine I cannot access any Windows services like shared directories etc. The Windows machine doesn't even respond to ping requests from ubuntu.

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• Chrome keeps crashing after updates

  - by Phil

  I'm a chrome user and an enthusiast but few days ago I made Ubuntu get some updates using Update Manager, then I turned off my notebook and when I restarted it, I tried to start Chrome which after a few seconds turned the screen completely black, and some errors appeared for few seconds and then I got logged off, and had to re-login, and when I opened Chrome again the same thing happened! I've uninstalled it with Synaptic and did complete cleanings before re-installing Chrome but nothing succeeded. Now I can't use either Chromium and Chrome, but Firefox works. It's a very strange thing, never happened to me before and I don't know what to do because I had all my bookmarks syncronized in Chrome! Please help if you can :)

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• Software emulated OpenGL with higher version than my graphics card supports

  - by leemes

  I have an Intel GMA 950 chipset in my netbook. I want to learn how to write OpenGL shader programs with this fantastic tutorial and therefore need OpenGL 3.3. Sadly, my graphics card only supports OpenGL 1.4. I think that MESA can emulate OpenGL in software, so I'm wondering if it can emulate OpenGL 3.3 without any hardware accelleration (performance is very much no problem, since this is only for learning and testing puroses). Is there any possibility to do this?

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• Installing Ubuntu, Switches of to intergrated Graphic Card

  - by Clenn

  I got a problem. I'm willing to dual boot ubuntu 12.04 on my desktop. After i made a bootable USB ubuntu on it i'm going to install it. I boot it and I choose Install ubuntu roughly said. The problem is the following, It seems that when i press enter to start the install he switches of to my intergrated graphic card. I looked up in my bios what my primary graphic card selection is and it was on PCI Express (the option it supossed to be). So I'm clueless right now. I don't know how to fix this because I'm quite learning linux atm (school and by myself). Your faithfully, Clenn

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• How to charge an iPad?

  - by ibo.ezhe

  Trying to charge my iPad with my Ubuntu 11.10 laptop (HP ProBook 5320m). It connects and I am able to download photos for instance. However battery doesn't charge at all. Does anyone know how to fix this? Output of lspci | grep USB 00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02) 00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02) 00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02) 00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02) 00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02) 00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)

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• Microphone problem in Ubuntu 11.10

  - by Teja

  I am using both Windows 7 and Ubuntu 11.10 on a single system with the same hardware. While I'm making call through Gmail or Skype my voice is audible to others while I'm on Windows 7, but while I'm on Ubuntu 11.10 it's not audible to others, but I am able to hear their voice. But while I'm playing music on Ubuntu along with a call, the others are able to hear the music, but my voice is not audible for them. Please give me a solution for this and tell me where I can change the microphone settings on Ubuntu 11.10.

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• Mouse Not Working Properly

  - by James

  I just did a clean install of Ubuntu 11.10 but for some reason the mouse isn't working properly. Problems I'm experiencing are: left button on the mouse doesn't work, the cursor doesn't highlight anything, as well, the right side will not do a double click function. Doesn't seem to bring up the mouse menu to "go back" as well, "go forward" options. In order to make things work, I have to use the Enter key, and arrow keys.

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• How to restore the shortcut for the "fancy window switch?

  - by maaartinus

  Pressing the "windows key" and tab (Mod4+Tab) used to work similar to pressing Alt+Tab (which switches windows just like M$), but it showed a much better preview. Somehow I lost the shortcut and can't find it anymore. I've gone through the chaos in "System - Preferences - Keyboard Shortcuts" several times and the only thing I can see there is "Move between windows, using a popup window", whatever it means. I prefer the "fancier" switcher, how can I restore it?

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• What Language is unity written in?

  - by John

  What Language is Unity written in? Also, where can i get its source code? I have an idea for a windowing enviroment or shell (dont know what to call it). What i want to do is teach myself to create it. i like some of several ideas i have seen, but i want to redo all of them, also the concept of how a desktop works. I figured learning the language Unity is written in, and studying Unity and Gnomes code would be a good start. i am on Ubuntu 12.04 acer aspire 5920 3 gb ram 160 gb hard drive

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• Why not sync folders outside home with Ubuntu One?

  - by peer

  It took me a while to find out that with Ubuntu One I can sync only folders in my home folder. On all other folders the Ubuntu One option is available in preferences, but the actual actions are greyed out. The Ubuntu One FAQ is quite clear on that: No, currently you can only select to synchronize folders inside your home directory. But I actually wonder why and if this is going to change and if there is a trick around it (an other one than setting my home to /) ? I personally don't have any important data in my home folder other than the program configs. All documents, pictures, music are on a folder called /data that is actually on a different partition. That makes it much easier when one wants to reinstall Ubuntu.

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• Special keyboard keys?

  - by Hailwood

  I have a new laptop, It has the icon for toggling the touchpad on fn+f1 so I would like to assign this shortcut, I have a working script, and I can assign the script to any other combination, but it appears that ubuntu does not pick up the fn+f1 combination? how can I correct this? The other one is, My laptop has three extra buttons, Assist, Web, and Vaio. These map to Help, Homepage, and nothing respectively. the Web button is working perfectly. The assist button if I am setting up a keyboard shortcut for something it binds fine, but then pressing it does nothing? The Vaio button seems to not be listened to much like the combination I posted above. How can i correct the assist and Vaio buttons?

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• no login screen: problem with lightdm or plymouth?

  - by a different ben

  When I boot up my system, I don't get a login screen, just the boot log scrolling by, repeating after a while lines like this: * Starting anac(h)ronistic cron [ OK ] * Stopping anac(h)ronistic cron [ OK ] I can change to another virtual terminal, and start lightdm from there with sudo lightdm restart or sudo start lightdm. Other people with similar problems had just lightdm in their /etc/x11/default-display-manager. I've checked mine and it has /usr/sbin/lightdm in there, so that's not the problem.

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• Is it possible to save output from a command to a file after the command already has been executed?

  - by NES

  Does an elegant way exist to save the output of a command to a file after the command has been run, with the terminal window is open? I mean once the command has been executed in the terminal. The output is still there in terminal. Now i could copy & paste all the lines and save it to a file. But perhaps does a method exist to somehow write the output buffer of a terminal window to a file or even better the output of an already executed command?

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• How can I make the date/time applet display on a single line?

  - by EmmyS

  I just updated from Lucid to Natty (thought it was going to be Maverick, but my About Ubuntu menu shows that it is Natty, which "was released in April 2011" - who knew the developers had mastered time travel?!) In any case, the default date/time applet in my gnome panel is now displaying on two lines (date on top of time) instead of one line like it used to. Any way to get it back on one line? I've tried the instructions shown here, but it doesn't seem to make a difference.

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• Error installing Rails on Ubuntu 11.10 (Gem::DependencyError)

  - by Paulo Cassiano

  I'm trying to install Ruby on Rails on Ubuntu 11.10, but receiving this error: $ sudo gem install rails ERROR: While executing gem ... (Gem::DependencyError) Unable to resolve dependencies: rails requires activesupport (= 3.2.3), actionpack (= 3.2.3), activerecord (= 3.2.3), activeresource (= 3.2.3), actionmailer (= 3.2.3), railties (= 3.2.3) How can I fix this? Note: Git (1.7.5.4 ) and Ruby (1.9.2p290) are installed properly.

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• First time user here

  - by Brian

  Never used Linux before but I decided I want to start somewhere and Ubuntu seemed like the right place to start. I burned the 64bit version iso onto a CD and installed it onto a fresh new hard drive I got and it installed nicely or so I thought. First major problem was the fact that the screen slip oddly, second when I tried to log in everything just kind of froze, I could still move the cursor but thats it. I'm not too tech savy but I can follow instructions and any help given would be greatly appreciated. I am considering dual booting it with my other hard drive that has windows 7 on it but I'm afraid I might mess that up, plus if I do it that way I wouldn't know how to get rid of Ubuntu if I decide its not for me.

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• GtkFileChooserButton 'Select Folder' mode returns no path

  - by user8592

  I have added a GtkFileChooserButton to my app via Glade. It is set to folder selection mode. When the widget is clicked it shows a dropdown list of Nautilus bookmarks with an 'other' option in the end. A new file chooser dialog is launched when 'other' is clicked. The button is not connected to any other custom file chooser dialog. The connecting signal I am using is 'file-set' and I am retrieving the fullpath of user selected folder using Gtk.FileChooser.get_current_folder (). This setup works fine if user selects a folder from 'other' option. But if a user selects a bookmark from dropdown list, no path is returned. How to solve this? Is there a way to disable this dropdown list and directly go to the filechooser dialog? I want to use GtkFileChooserButton only so that the user can get a preview of his selected folder.

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• Share home directory between Linux and Windows dual boot

  - by user877329

  This question is somewhat similar to How to use Windows Share has home directory, but in this case Windows is not running. I have installed a dual-boot configuration with Ubuntu 12.04 and Windows. My Windows partition is mounted on /C. Now I want either Ubuntu to locate home directories in /C/Users Which is the location of windows accounts or I want Windows to use D:\home for home directories. (D is the name of the Ubuntu root directory). For the first approach, I have managed to create a test user account test-user:x:1004:1001:Test:/C/Users/test-user:/bin/bash The account works but test-user cannot run any X session. From .xsession-errors chmod: Changing rights on ”/C/Users/test-user/.xsession-errors”: Operation not permitted Would it help get rid of that chmod, which has no effect? How do I? If I use the second approach, I need the Ext2fsd driver, which seems to work, but I am not sure if Windows maps the Ext2 system that early. Here is my fstab proc /proc proc nodev,noexec,nosuid 0 0 UUID=e7cef061-ed8d-4a82-b708-0c8f4c6f297f / ext3 errors=remount-ro 0 1 UUID=2CDCEB43DCEB0644 /C ntfs defaults,umask=007,gid=46 0 0 UUID=b087b5c0-b4bd-47e7-8d34-48ad9b192328 none swap sw 0 0 Update: I found something here: http://www.tuxera.com/community/ntfs-3g-advanced/ Will work if i do a correct mapping between NT users and Linux users.

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• installing ubuntu 10.04 over top 11.04

  - by Alex

  im looking to install 10.04 over top the 11.04 partition, it wouldnt let. keeps giving me a "root file system not found" error ever time i manually select partition. (i have a win7 partition) 11.04 popped up after upgrade that my hardware isnt supported for unity. and i cant boot into it, hangs up on purple screen right after boot menu. if anyone can post a link to a how to guide or put it on here, would be great? im trying to take advantage of my nvidia geforce gt 120m (its a laptop) to play around with cuda/c++ programming!

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• How do I left-click a Java Application on a WeTab running Ubuntu 12.10? (workaround defect in Onboard)

  - by Kat Amsterdam

  I installed Ubuntu 12.10 on my weTab. Everything works perfectly (albeit slowly) and I can touch and use every application execpt ones written in Java. When I start any Java Application the touchscreen does not recognize the left click. I believe it's a problem in OnBoard (the onscreen keyboard) because when I touch the mouse icon on the OnBoard and then the Java Application the left click works. This is very cumbersome for every click to first hit OnBoard mouse icon and then button in the Java app I would like to click. It defeats the purpose of a touchscreen. The Java Application is definitly touchable as it's running on 10 other machines with Elo Touchscreen. How do I get Ubuntu to recognize the left click in a java application automatically when I touch the screen? Or a way to dignose this so I can make a clear bug report? This happens in all the desktop environments (Gnome/Unity, XFCE4 and LXDE) I tried with openjdk-6-* and openjdk-7-* Stats: WeTab 32GB 3G 2GB RAM Intel(R) Atom(TM) CPU N450 @ 1.66GHz - 64-bit Ubuntu 12.10 - 64 bit Unity Desktop environment Xubuntu Desktop environment Lubuntu Desktop environment The real touchscreen driver from EETI (eGalaxy) (also didn't work with the Ubuntu standard touchscreen driver)

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