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.

learn more… | top users | synonyms (9)

3
votes
0answers
507 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 ...
3
votes
0answers
85 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 ...
3
votes
0answers
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 ...
3
votes
0answers
80 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 ...
3
votes
0answers
354 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 ...
3
votes
0answers
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 ...
3
votes
0answers
781 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 ...
3
votes
0answers
2k 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 ...
3
votes
0answers
267 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 ...
3
votes
0answers
932 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 ...
3
votes
0answers
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. ...
3
votes
0answers
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 ...
3
votes
0answers
385 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 ...
3
votes
0answers
984 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 ...
3
votes
0answers
321 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. ...
3
votes
0answers
974 views

ubuntu 12.04 stopped showing every usb devices

Ubuntu was running perfectly, suddenly my internal HDD partitions (except file system) and partitions of external HDD disappeared. I was able to mount the partitions of internal HDD via disk utility, ...
3
votes
0answers
454 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 ...
3
votes
0answers
733 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 ...
3
votes
0answers
919 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 ...
3
votes
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 ...
3
votes
0answers
566 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 ...
3
votes
0answers
646 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 ...
3
votes
0answers
842 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 ...
3
votes
0answers
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 ...
3
votes
0answers
664 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 ...
3
votes
0answers
505 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 ...
3
votes
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 ...
3
votes
0answers
470 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 ...
3
votes
0answers
395 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 ...
3
votes
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 ...
3
votes
0answers
5k views

How to solve “error splicing file” IO while copying files?

I've recently backed up some files on an external hard drive in order to install Ubuntu 12.04. But when I wanted to copy the backed up files (ex. music files) back to home folder, I'm prompted with ...
2
votes
0answers
27 views

How to have two headphones (one usb, one not) play sound at the same time?

I've tried installing pulseaudio but it doesn't let me do two headphones at once. Thanks.
2
votes
0answers
29 views

I am not able to install ubuntu using usb?

I downloaded ubuntu 12.04.5 LTS iso file from torrent( size 700+ MB)and copied it in the usb. Then I made my usb drive bootable by running command line instructions (since my GUI is not working) from ...
2
votes
0answers
43 views

How to link brightness button to correct brightness script

I recently upgrade my Ubuntu from 12.04 to 14.04. My laptop has always had incomtibility issues between the brightness button and the actual brightness set up. In 12.04 I had fixed the problem by ...
2
votes
0answers
39 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 ...
2
votes
0answers
42 views

Chromebook: Map Search Key to Caps Lock

Using crouton, I have ubuntu running on my chromebook. By default, the caps lock key is a search key and opens up the dash home. How can I map this key to be caps lock instead? I am very new to all of ...
2
votes
0answers
109 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 ...
2
votes
0answers
65 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 ...
2
votes
0answers
149 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 ...
2
votes
0answers
62 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 ...
2
votes
0answers
147 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, ...
2
votes
0answers
115 views

change from xboxdrv to xpad driver

My computer (Ubuntu 12.04 with Unity) recognizes and works with my wired xbox360 controller with jstest-gtk and my Steam games recognize that the controller is there but buttons and joysticks input do ...
2
votes
0answers
113 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 ...
2
votes
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 ...
2
votes
0answers
147 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. ...
2
votes
0answers
999 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 ...
2
votes
0answers
462 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 ...
2
votes
0answers
202 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 ...
2
votes
0answers
123 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 ...
2
votes
0answers
121 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 ( ...