Fourth LTS (Long Term Support) release of Ubuntu, code-named Precise Pangolin. Released on 26th April, 2012. Only use this tag if your question is version-specific.

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125 views

How to manage colours of monitor?

When I was on Windows 7 there was a program: Intel HD Graphics control panel. My notebook: Acer Aspire 5750G Integrated videocard: Intel HD graphics discrete video card: Nvidia 630m How can ...
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495 views

How to create dm-crypt device in LXC?

On one LXC container I need to put sensitive data, preferrably stored in dm-crypt encrypted filesystem. When I write sudo cryptsetup luksFormat --cipher aes-xts-plain --size 512 ...
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84 views

applications linked to workspaces

I have just upgraded to Ubuntu 12.04 and I found a weird behaviour in the multi-workspace management. Let's say that I have a couple of terminals opened in one workspace, and that I want to do ...
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2k views

Video driver Radeon x1200

I got the issue when I play flash games or videos it's too slow. I reinstalled Ubuntu and it worked smooth for like 5 hours then I rebooted and it was slow again. When I type sudo lshw -C display ...
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79 views

Music lens does not play music through default music player

I have set Rhythmbox as my default music player through System Settings > Details, but when I browse and play music from the Unity dash, Banshee opens up and plays the music. How can I have Rhythmbox ...
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352 views

mystery of missing file modifications (hybrid drive + Ubuntu 12.04)

Last week (Sep 10) I worked a whole day (on my Ubuntu 12.04 HP elitebook 8530p laptop) using a tex editor (TexWorks) and Jabref to maintain a Bibtex library. Today however I noticed all my ...
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2k views

How can I configure a Canon Pixma MG5300 to print wirelessly?

How can I configure a printer to print wirelessly in ubuntu 12.04 ? I have a canon pixma mg 5300 series, and I am able to print correctly by usb (the drivers were installed). Now I'm trying to do it ...
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774 views

Receiving Bluetooth Files from Nexus 7

I have successfully paired and connected my Nexus 7 with my Ubuntu 12.04 PC. I have successfully sent files from the PC to my Android device, but when I try to send files from Android to Ubuntu, the ...
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1k views

Unity launchers and bar disappeared and unity --reset shows an error

I am having a problem with unity. I have launched Movie player with QNapi (application for downloading movie subtitles) and somehow Unity crashed and disappeared leaving just the opened windows ...
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266 views

Segmentation fault when trying to run psychonauts. NOT SOLVED by forcing S3TC-support or getting the needed libraries

So i'm having problems running psychonauts as i've noticed many others have as well. I installed it through software center and made sure i had the right libs needed to run mesa ...
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0answers
923 views

Dell Vostro 1510 can't connect using wired connection

I recently dual-booted my system with Windows 7 and 12.04. I can't access Internet through wired connection, in spite of LAN cable in the socket. It says network cable unplugged, but I can access ...
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2k views

12.04 internal error ( Sorry Ubuntu 12.04 has experienced an internal error )

I am running 12.04 LTS. I have been since its release. But all of a sudden my machine now take 5/6 minutes to boot up. I do not have sound anymore, where pulse audio was listed now reads dummy output. ...
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1k views

Tracing IR to Hauppage remote on Mythbuntu 12.04

I have installed Mythbuntu 12.04 on an AMD dual core. Basic TV play and record functions are working, but I am having some troubles with the remote. The card is a Hauppauge WinTV-HVR 1250. I have ...
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378 views

How can I make my ubuntu 12.04 act like an external usb hard drive?

Quick breakdown, I have a Roku 2 XS that has a USB port that you can connect a flash drive or external hard drive to. I also have a box running Ubuntu that is the household media storage center. I ...
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0answers
971 views

Wireless driver only works after plugging the cable in with a BCM4313

I upgraded to Ubuntu 12.04 this week. I've had a couple of problems with my wireless card. After following some posts here on askubuntu I got it to work on a peculiar way: When I start my laptop ...
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0answers
319 views

Sony NWZ-E363 doesn't go in MTP-Mode

i want my mp3-Player to work as MTP. Therefore I added a .config containing options usb-storage quirks=054c:059b:i file to /etc/modprobe.d. To prevent the device from beeing auto-mounted. ...
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0answers
451 views

DNS servers not correctly set in VPN

I have to use an OpenVPN network to work from home, and I occasionally have problems getting DNS to resolve. The problem comes and goes, and I can't reproduce it reliably. I took the OpenVPN config ...
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725 views

Enabling middle-click and gestures on multitouch clickpad? (Ubuntu 12.04; Samsung NP900X3A-A03US)

Out of the box (with the xorg.conf from the Ubuntu wiki), left-click, right-click, and two-finger scroll all work flawlessly. However, middle-click doesn't work at all (despite appearing to be ...
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0answers
908 views

Webcam stopped working but appears in lsusb, works fine in windows

This has been bugging me for some time now... Laptop: Thinkpad T420 Ubuntu 12.04 Precise When I installed Precise, I could use my webcam without any issue (Cheese, Skype...) However, all of a sudden ...
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0answers
4k views

How do I install an Edimax EW-7811Un wireless adapter?

I recently installed Ubuntu 12.04 to my old computer (a Dell) after XP began to run very slow, and am now trying to install a Edimax EW-7811Un 150 Mbps Wireless 11n Nano Size USB Adapter to connect to ...
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565 views

Unity + Gnome 3 broke on update — NVidia card — OpenGL working

Think the title is fairly clear (system specs below) I cannot get Unity (2d works) nor Gnome 3 to load properly since an update run last Friday thus far I've tried installing propietary drivers ...
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643 views

Is it possible to change a laptop's screen-dimming capabilities?

My laptop is able to dim it's screen automatically until it is turned off by Ubuntu to save power, currently my dim screen button doesn't let me turn off my screen completely, my questions are: Is ...
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825 views

How do I install and use the Bluetile window manager in 12.04?

I've been working on getting bluetile working on 12.04 so I can start down the path of tiling windows managers, but I have been having limited success. I have read the (only 7!) other posts on ...
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4k views

Ubuntu 12.04 OpenCL with Intel and Radeon?

I want to setup my Ubuntu 12.04 with OpenCL(Open Computing Language) support for i7 2600k and Radeon HD5870. My Monitor is connected to the integrated Graphics of the i7. Intel OpenCL SDK is ...
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663 views

Wifi will not connect with an Intel Wifi Link 1000

I have an HP dv7t-6100CTO laptop. I have linux ubuntu 12.04 lts dual booted. The specs of my laptop are: - i7-2620m dual core (2.7 ghz) processor - intel wifi link 1000 bgn wireless card I am having ...
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0answers
501 views

Ubuntu 12.04. Show windows issue. Blank window appears

I've got a problem with an action "show windows" which shows all windows when I reach a right down edge of my screen (similar to Expose at MAC). Since I installed Ubuntu 12.04 this function has ...
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0answers
252 views

With Nvidia proprietrary drivers cannot choose monitor launcher appears on

It's awesome that unity now let you choose in which monitor you want the unity launcher to apear. However, once I've install the nvidia privative drivers I can't chose anymore. I force what normally ...
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461 views

Saving/Applying Gnome Settings not working

I am unable to change any settings on my Gnome setup, such as favorites in Unity, adding extensions in Gnome Shell, etc.. It appears that the computer just ignores any settings. In Gnome Shell, I ...
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0answers
393 views

Vertical scroll doesn't work in some applications on a Dell inspiron 14R

I just installed ubuntu 12.04 and installed all the necessary updates and Gnome Shell. I have ticked "enable horizontal scrolling" and "edge scrolling" in touchpad settings. The scrolling works well ...
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0answers
1k views

Ubuntu 12.04 Freezes after removing the HDMI cable or changing settings

I'm using an fresh install of Ubuntu 12.04 and I'm having some problems with HDMI. I usually use it with my TV, but since the update isn't working any more. Sometimes in 11.10 I had to execute a ...
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0answers
24 views

Configure Evince to open maximized with 100% zoom level?

I have Ubuntu 12.04.5 LTS installed on my computer. If I open PDF in Evince for the first time, the window is always un-maximized and zoom level is 70%. I want Evince to be maximized and the zoom ...
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0answers
83 views

Why does libapache2-mod-php5 get removed whenever I upgrade apache2?

I hope someone can help me figure out what is going on with my apache upgrades. For years, whenever I upgrade apache2, it tries to install apache2-mpm-itk even though I use the prefork module ...
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votes
0answers
58 views

Network problems setting up an Ubuntu server in VirtualBox

Before I get into my problem I would like to start with what I am trying to accomplish in case my approach is non-optimal. I want to setup a virtual environment that mirrors our production ...
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0answers
121 views

How do we implement requirements of password policy?

This question might look similar but I could not find a solution to this which covers all the below requirements of the policy, Hence please help me: - Incorrect pass lockout (after 3 incorrect ...
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0answers
60 views

Running 3 monitors on Ubuntu 12.04

I would like to run 3 monitors on Ubuntu 12.04. I have NVIDIA Quadro 5000 which is able to support 2 monitors. I only have an additional PCI slot so my option are limited for a second graphics card. I ...
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0answers
133 views

Ubuntu 12.04: Installing MonoDevelop “broken packages”/“unmet dependencies” error

I am very new to Linux, so please forgive me if the answer to my question is obvious. Since I am running an ARM device and can't install wine, I am trying to install Mono/Develop. The problem is, ...
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0answers
104 views

update-grub fails on lvm cryptoroot

Disclaimer: I'm running this server now but I did NOT install it. I have two disks connected to an Intel Hardware Raid Controller running in RAID1. On top of it there is a fully encrypted 12.04 ...
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0answers
296 views

Why can't my udev rules rename kernel device nodes after upgrading from 12.04 to 14.04

In Ubuntu 12.04 I wrote the following udev rules to fix the /dev name of a USB RF remote control. These were: KERNEL=="event[0-9]*", ATTRS{name}=="BTC USB Multimedia Cordless Keyboard", ...
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0answers
88 views

Running Chrome extension periodically using a cronjob

I have built a chrome extension that performs a set of actions on a random webpage. The extension seems to work fine and I plan to run it on a VPS running Ubuntu with a XFCE desktop environment. Now ...
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0answers
37 views

Unable to find /usr/bin

I am running Ubuntu 12.04 on my machine. Somehow when I tried to boot in next time, it stops me at the terminal window itself. I'm absolutely not able to do anything as it says, /usr/bin/python : No ...
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0answers
143 views

Cannot shutdown (CLI/GUI)

I have problem with shutting down my laptop (Asus UX42VD) on Ubuntu 12.04. And I have no idea what could cause this problem. Now after clicking on buttons Restart or Shut down, it just logs me off. ...
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0answers
918 views

fresh install, python-software-properties unmet dependencies

attention: This might be more a question for "gis.stackexchange" but it is Ubuntu-related Geonode 2.0 is available for Ubuntu 12.04 but not for Ubuntu 14.04. According to the docs it should be ...
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0answers
428 views

Sun Grid Engine Qmon not working on Ubuntu 14.04 LTS

Hello to Sun Grid Engine, UI, and package experts, After installing Sun Grid Engine and trying to run the qmon graphic user interface, the system shows the following errors: Warning: Cannot convert ...
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0answers
193 views

AMQP connection closed when nova cells are enabled on Devstack

I have set up Devstack on 3 servers having IPs 10.10.1.51,10.10.1.53 and 10.10.1.54. I configured the devstack on server 53(IP 10.10.1.53) as the parent/api cell and configured the openstack on 51 and ...
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0answers
119 views

Unable to boot after update

After a update, Ubuntu won't boot anymore and gives: error: could not read file. If I'm fast enough to press a button to continue, I get Kernel panic - not syncing: VFS: Unable to mount root fs on ...
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0answers
118 views

Boot to tty2 on start

On Ubuntu 12.04 I had a server with no GDM. I want to boot to tty2 on start up. What would I put into rc.local? Note* I do not have grub tty1: start on stopped rc RUNLEVEL=[2345] and ( ...
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0answers
80 views

Citrix and firefox in ubuntu 12.04 window disappears too fast!

Running 12.04 and got citrix receiver installed OK (I think) but when I go to launch an .ica and I have set firefox to use wfica to handle these files, a window pops up and then disappears super ...
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0answers
845 views

Hangs On or After fsck from util-linux 2.20.1

I have a box running at DigitalOcean with Ubuntu 12.04 It's rare that my system will boot or takes forever - normally it just hangs / chokes. A reboot from a remote shell used to be pretty quick and ...
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0answers
106 views

Bluetooth problem on Asus U32 with Ubuntu 14.04

I'm running Ubuntu 14.04 on a Asus U32 alongside Windows 8. Recently I've upgraded from 12.04 to 14.04 and since then the Bluetooth is not working anymore. Whenever I try to turn it on from the ...
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0answers
113 views

How can i get yammer notification alert in ubuntu system

I am using yammer in my system with ubuntu 12.04 version. I want notification alert if any message/comment received. Like we have in skype. Can any one know it.