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)

0
votes
1answer
4k views

problem with update of libreoffice

This is a problem: ~$ sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct ...
0
votes
1answer
2k views

Can't boot into ubuntu after installing

I just installed Ubuntu at my HP Pavillion H8 computer with 8gb RAM and a Intel Core i7 CPU, and for some reason I can't boot into Ubuntu. When looking in the msconfig boot menu, the only OS listed is ...
0
votes
1answer
8k views

VirtualBox kernel modules do not match the version of VirtualBox

The VirtualBox 4.2.12 on Ubuntu 12.04 was running fine till I needed to install guest additon. After its installation: Failed to open a session for the VM Win 7 exit code 1; RTR3Init failed with ...
0
votes
1answer
668 views

KDE overrides lightdm logon screen [duplicate]

Possible Duplicate: How do I install KDE and retain LightDM as a login manager? I upgraded my KDE desktop and suddenly it overrode many parts of unity user interface such as menus, icons, ...
0
votes
1answer
1k views

Ubuntu 12.04 does not boot after installation appears to succeed

After successfully installing ubuntu 12.04 on a Sony VAIO SVE14115FN (E series) it's not booting up. Just displaying an error: "Operating System Not Loaded" Please help me in this.
0
votes
2answers
266 views

Error trying to upgrade from 10.04.4 to 12.04

Today i wanted to upgrade to 12.04 and I checked my update manager. But it it not showing the upgrade option. How can i upgrade? im using 10.04.4
0
votes
2answers
7k views

Installing Ubuntu 12.04 along Windows XP and Windows 7

I have Windows XP installed on C: drive and Windows 7 installed on F: drive. I want to install Ubuntu 12.04 along with Windows (keeping both XP and 7) in drive G: without losing any data stored in the ...
0
votes
1answer
2k views

Error in updating the system

Whenevr i try sudo apt-get update in the terminal it throws the following error:- Err http://archive.canonical.com precise InRelease Err http://archive.canonical.com precise Release.gpg Unable to ...
0
votes
1answer
402 views

gerrit push not working

I tried executing the command git push gerrit HEAD: refs/for/BR_PS_1109 It gave the response: fatal: remote part of refspec is not a valid name in HEAD: Git remote version is also fine, as evident ...
0
votes
2answers
2k views

Can't boot Windows XP after installing Ubuntu 12.04 [duplicate]

So I installed Ubuntu 12.04 alongside Windows XP, and I played with it for a like an hour. When I wanted to go back to Windows, I chose the Windows option in the GRUB screen. It just gives a black ...
0
votes
1answer
864 views

Nessus 5 installation not working

I downloaded the Ubuntu 11.10 / Ubuntu 12.04 (64 bits): Nessus-5.0.1-ubuntu1110_amd64.deb (25298 KB) from the following page:- http://www.tenable.com/products/nessus/select-your-operating-system ...
0
votes
1answer
1k views

Ubuntu 12.04.1 dual boot - boots directly to Windows 7

I wanted to install Ubuntu on my computer as second OS. I shrank the Windows partition and gave Ubuntu about 40Gb of space. After this I created a live USB having Ubuntu 12.04.1, and booted using the ...
0
votes
1answer
1k views

Mouse freezes after 20 minutes of use

I use 12.04 and an old HP Probook 4515s. Every time I start the PC, everything works fine but after about 20 minutes, my mouse freezes. Neither the PC nor any program works, just the cursor. What ...
0
votes
1answer
1k views

Computer boots directly to Windows after installing Ubuntu

I bought VAIO E14A16. I installed Ubuntu 12.04 along-side Windows 7(dual boot) from CD., When I reboot, it starts Windows 7 directly. If I press F11 it says no operating system found Where did I ...
0
votes
2answers
1k views

No sound Civ 5 and wine

I have installed Civilization 5 retail version with an update pack called update 7 via WINE and while the game runs well I am unable to get any sound working. I am running 12.04 and version 1.4 of ...
0
votes
1answer
672 views

Ubuntu thinks my desktop is a laptop [closed]

Ubuntu thinks my desktop is a laptop. I looked for answers on the interweb, but nada. I'm running 12.04.
0
votes
0answers
125 views

I can't install any software using software-center in 12.04 [duplicate]

Possible Duplicate: Software center not opening I can't install any software using software-center in 12.04, I just can install some sofware if I run software-center as root, I put some ...
0
votes
1answer
1k views

Ubuntu 12.04 NVIDIA GeForce Go 7600 black screen during boot

I'm using Ubuntu as the only operating system since two years. In the first Ubuntu versions I had seen my BIOS screen and the boot screens. Actually im using Ubuntu 12.04 and my screen stays black ...
0
votes
1answer
960 views

My computer's not starting up without the Ubuntu usb [duplicate]

Possible Duplicate: Can't boot without Flash Drive plugged in I installed Ubuntu 12.04 LTS in my Dell Inspiron 1545 from a usb stick but it is not booting up when I removed the usb ...
0
votes
1answer
3k views

Why nvidiabl module is not working in precise?

I've just installed nvidiabl module from https://github.com/downloads/guillaumezin/nvidiabl/nvidiabl-dkms_0.74_all.deb and screen brightness still is not changing. I have NVIDIA G210M, Precise amd64, ...
0
votes
2answers
9k views

Ubuntu hangs on booting up after a update

I've made a clean install yesterday, for the first time restarted, everything went good and then after I updated packages and copied my old home directory to replace the new one, when I restarted it ...
0
votes
1answer
279 views

Where is the problem?Workspace switching during bricscad drafting with zooming with mouse wheel!

Well, i am currently working with bricscad v12 for my 2D drawings, BUT i have a very annoying issue. When i am zooming too much in brics and working with an active command the workspace is changing. ...
0
votes
2answers
902 views

'Device not ready' to D-Link DFE-580TX Wired Network Adapters

My 3 Quad port network adapters can be recognised when I write the 'ifconfig' command, but they all seem to be in 'Device not ready' state when I click on the networking tab at the toolbar (please see ...
0
votes
1answer
709 views

Second click on a launcher icon with more than one window open doesn't do a scale of that application [closed]

If I click an icon in the launcher with multiple windows open it doesn't show me all open windows for that application (like ctrl+w does for all open windows). I seem to remember it working as ...
0
votes
3answers
4k views

How do I get a Huawei E1550 dongle working?

I need help making my E1550 dongle work on Ubuntu 12.04. When I connect the dongle to my laptop, it is recognized by the Network-Manager and is listed as one of the options. But each time I try to ...
0
votes
1answer
4k views

Can not get passed the login screen

I have the same issue as others (see Login returns to login screen [closed]). When I arrived at the login screen, I enter my password, the screen goes black for one second, displaying some text, and ...
0
votes
1answer
1k views

How to switch between GPU's on HP Pavilion DV7 Laptop?

I have two GPUs in my HP DV7 Laptol and I wonder how to switch GPU I'm using at the moment? I have ATI Radeon HD 4200M and ATI Radeon HD 6600M running on my laptop and I want to change from HD 4200M ...
0
votes
6answers
24k views

Ubuntu 12.04 installation CD is not booting?

I am using Ubuntu 8.10 and want to upgrade it to 12.04. I have downloaded 12.04 from the Ubuntu site and burned as ISO image CD in a DVD (because it is 701.3MB). When I insert this DVD into my ...
0
votes
3answers
2k views

Corrupted file Ubuntu OS download (11.10 & 12.4)

Two time I tried to download Ubuntu 11.10 version and 12.04 version. but both files are corrupted, unable to install. When I install Ubuntu 11.10, after 5 minutes it shows file missing, unable to ...
0
votes
1answer
4k views

Which Canon flatbed scanners are supported in 12.04?

How do I find out which Canon flatbed scanners are supported in Ubuntu 12.04? Specifically I need to know if the Canon LiDE 110 is supported?
0
votes
0answers
426 views

Unity-Greeter not showing personal wallpaper [duplicate]

Possible Duplicate: How do I add customized wallpapers so they appear in the dynamic unity greeter? I did a fresh install of ubuntu 12.04 64bit and for some reason my personal wallpaper is ...
0
votes
3answers
579 views

Upgrade from 11.10 to 12.04 stalled

I've been trying to upgrade from 11.10 to 12.04 using the update manager. Everything went fine at first, and I haven't gotten any errors, but the progress has been stopped at "Preparing to configure ...
0
votes
2answers
432 views

system freezing mid upgrade (to 12.04)

I'm in the process of upgrading to 12.04 (via command line, from 11.10). Everything was downloaded and it was happily unpacking and replacing packages when my system froze. I can move my mouse, ...
0
votes
1answer
3k views

Update 11.04 to 12.04 with LiveCD [duplicate]

Possible Duplicate: How do I upgrade straight from a very old release to the latest one? I'm trying to update my current Ubuntu 11.04 install to 12.04 while keeping the files, settings and ...
0
votes
1answer
233 views

ATI move the unity bar to another screen using binary driver

I must say, I'm really pleased with the 12.04 performance. The only real issue I had is that I needed a custom screen orientation and the binary driver had no way to move the unity launcher, as far ...
-1
votes
1answer
96 views

How to build my own Linux distro? [closed]

Suppose, I've downloaded my kernel from http://kernel.org/ Now, How should i add desktop background with Mouse pointer, control panel, wallpapers etc.? Please help, Surely help would be appreciated!
27
votes
3answers
37k views

How to keep apache and mysql from starting automatically

Is there a way to make apache and mysql not run automatically on startup? Currently, whenever I boot my machine, they start automatically and run in the background. I am using Ubuntu 12.04.
20
votes
9answers
5k views

Nautilus is very slow

One month ago I updated (no fresh install) to 12.04. Since then nautilus got extremely slow. When I open a folder that contains many subfolders I sometimes have to wait 4 seconds until everything is ...
16
votes
4answers
19k views

Encrypting/Decrypting a single file in Ubuntu 12.04 LTS

I need to be able to encrypt/decrypt a single text file stored on my external HD in 12.04 LTS, preferably a GUI application, if any, or the command line otherwise. Thank you.
26
votes
6answers
24k views

Is it normal for compiz to consume 40% of my CPU with no other programs running?

When I have no other programs running, compiz takes up at least 40% of my CPU. Is this normal? If it is normal, is there anyway I could make this program take a smaller percentage?
16
votes
1answer
19k views

Ubuntu 12.04.4 LTS to 14.04.1 LTS upgrade: “no new release found”

According to Trusty Tahr Release Schedule, Ubuntu LTS 14.04.1 (first .1 version) was released two days ago. Unfortunately when trying to upgrade using the do-release-upgrade command I get the message ...
20
votes
4answers
24k views

How can I create launcher icon for PhpStorm?

I have PhpStorm on my PC, to launch it I have to go to phpstorm/bin/ and launch phpstorm.sh, how can I pin this to launcher so that I dont have to go into folders every time?
20
votes
4answers
30k views

VirtualBox Guest Additions won't install on Ubuntu Server 12.04

I am trying to install VitrualBox's Guest Additions on Ubuntu Server 12.04, but keep getting an error. I am using the following command sudo ./VBoxLinuxAdditions.run --nox11 and get the following ...
8
votes
4answers
14k views

How to permanently disable touchpad in 12.04? [duplicate]

Possible Duplicate: How to disable Touchpad? I'm looking for a way to permanently disable the touchpad in Ubuntu 12.04 (my computer is a Lenovo Thinkpad Edge on which it isn't possible to ...
7
votes
3answers
7k views

Connection drops out regularly with a Ralink RT2800

I'm not sure what's causing the problem, nevertheless, I began to encounter regular wireless disconnections after upgrading to Ubuntu 12.04.1 LTS. Using System Profiler and Benchmark utility, I've ...
21
votes
4answers
10k views

How to ungroup windows on task switcher?

I'm playing with ubuntu 12.04, precise pangolin, and there's an issue I can't see how to solve. If I have three instances of, let's say, Firefox, in the switcher appears a single Firefox icon, I have ...
15
votes
2answers
2k views

Is it possible to query maximum ram my mobo takes?

Is it possible to query through Terminal how much ram my motherboard can take? I'm looking to see if i can even upgrade.
12
votes
1answer
13k views

How do I send a notify OSD message to a remote user via ssh?

Sometimes we need to send a message to a remote user. We can display messages on our local desktop using Notify OSD, but we are unable to send a message to the remote user's desktop. We tried the ...
11
votes
2answers
29k views

Java on Ubuntu server 12.04? [duplicate]

I'm a little confused at the moment. My back story in short, is that I'm trying to set up a Minecraft server on an Ubuntu server I've recently set up, obviously to do this I needed Java, but after ...
11
votes
3answers
36k views

How can I make Unity 2D the default session at start-up?

I want Ubuntu to always use Unity2D by default. I am using the latest version (12.04 LTS).