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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Webcam isnt detected/working 12.04

I have a HP Pavilion laptop with a built in webcam which isn't being detected in Ubuntu 12.04. I have referred to this solution but I don't have a camera button on my keyboard as described in that ...
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1answer
127 views

Can't access Live User Session account in ubuntu 12.04

I made a new account with account type administrator. Somehow my live session user account is not listed in User Accounts at System Settings. How to login as live session user again?
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1answer
65 views

How to find the window of a specific file in the multiple windows of Okular with multiple files open

I use Okular to open, say 5, pdf files. Now I need to find one pdf file, say "HelloWorld.pdf" However, when I click the Okular icon, 5 small windows show up on the desktop. The windows are so small ...
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1answer
350 views

HP Color LaserJet CP1515n is not recognized (Networkprinter)

I have a Notebook with Ubuntu 12.04 and everything is working even the printer mentioned above. I got a new PC-System and also installed Ubuntu 12.04. I thought setting up the printer will be a piece ...
1
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0answers
137 views

How do I turn on my wireless?

I am brand new to Linux systems (Day 2) With no prior knowledge (PHD in Physics, not Linux) I had my wireless up and running via NDISWRAPPER, but when Ubuntu updated, and I restarted my computer (as ...
4
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1answer
5k views

12.04 Failed to load module “nvidia” (module does not exist, 0)

I have ASUS UL50Vt with nvidia optimus hybrid graphics (GeForce 210M). I recently installed ubuntu 12.04, and in Details app it was showing me, that I am on Intel video driver. So, I installed ...
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3answers
4k views

Electrical sounds in earphones when laptop is plugged in

I hear annoying electrical static noises in my earphones when my laptop is plugged in. They disappear upon my unplugging the power supply. However there is still a buzz when I move the cursor. Can ...
1
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1answer
62 views

Ubuntu One: can you shutdown your computer when syncing is in process?

I just installed ubuntu 12.04 on my other laptop. I logged into my ubuntu one account and it starts syncing files that I stored from my other laptop. However the files are too big and the syncing ...
1
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0answers
101 views

Problem with using gnome-screenshot in awesome

I'm having problem with using gnome-screenshot in awesome wm. Here's the screenshot. I'm using awesome wm and my linux distro is Ubuntu 12.04. I have no idea how to solve this and what causes this. ...
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2answers
381 views

Ubuntu 12.04 boot error, I/O error

Ububtu is failing to boot into the gui. I have tried using boot repair but it failed to work: http://paste.ubuntu.com/5747328 I installed recommended updates yesterday. Image of error for your ...
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1answer
2k views

Black screen when starting from LiveUSB [duplicate]

I am trying to get Ubuntu 12.04 onto my computer and when I boot up the LiveUSB (don't have a CD drive), I can see the GRUB boot screen but it doesn't show up the Ubuntu installation GUI. Anyways, ...
1
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0answers
2k views

Delete and arrow keys not working

After installing 12.04 and Gnome Shell, I find that the arrow and delete keys, along with the insert, home, page up & down, and end keys have stopped working. All these keys now appear to be ...
2
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1answer
473 views

How can I sort files in Nautilus by modified date?

I want to sort files in Nautilus by modified date, similar to sorting files by modified date in Windows Explorer: How can I sort files in Nautilus by modified date?
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0answers
77 views

Unable to boot after successful upgrade?

I performed an upgrade by using apt-get upgrade. The upgrade completed successfully, but after a reboot, Ubuntu is not booting past the Grub menu. When I tried to boot using recovery mode from Grub ...
0
votes
1answer
621 views

12.04.2 LTS 32-bit Server does not start graphic interface in VMWare 5.0?

On a Windows 7 system, I installed VMWare 5.0 and tried to install the 32-bit Server LTS flavour of Ubuntu. After the install completed, it only starts in console instead of the usual GUI. How do I ...
2
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2answers
6k views

NVIDIA x server - “sudo nvidia config” does not generate a working 'xorg.config'

I am over 18 hours deep on this challenge. I got to this point and am stuck. very stuck. Maybe you can figure it out? Ubuntu Version 12.04 LTS with all the updates installed. Problem: The default ...
0
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1answer
358 views

Lubuntu 13.04 works, except for unpredictable blank screens

I just installed Lubuntu 13.04 on my MacBook Pro 6,2. It seems to work fine. However, once in a while, when I am logged in and using the computer, the screen will suddenly become blank. (Sound still ...
2
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0answers
2k views

Global keyboard shortcut for copy, cut and paste

How can I define a global shortcuts for copy, cut and paste? I'm used to Mac's ⌘+C for copy and ⌘+V for paste. They are global, so I can use them interchanging data between CLI and GUI apps. How can ...
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2answers
5k views

Ubuntu Software Center crashes due to error in its Python code

I searched for that, but did not find any reference to it on this site. If you know some, please refer me to it - the issues I have seen have different symptoms. So, to the point... I had Ubuntu ...
3
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0answers
2k views

Safe to install Nautilus 3.6 in Ubuntu 12.04 LTS? [duplicate]

I tried installing the new nautilus via commands sudo add-apt-repository ppa:gnome3-team/gnome3 sudo apt-get update sudo apt-get install nautilus But the console warns me not to do that: You are ...
1
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1answer
379 views

Diagnose Ubuntu 12.10 (in Dual 12.04-12.10 boot)

I find that my Acer Aspire One D270 Netbook (Intel Atom CPU, 2GB DDR3 memory) shows a blank screen with a blinking cursor if I tried booting 12.10 from the bootable USB stick. In fact once, I clicked ...
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1answer
3k views

How to find the device name of an HDD that won't mount?

I have a failing HDD that I want to recover data from, using ddrescue. However, I don't know how to find the device name. When I booted Ubuntu with the disk plugged in, Ubuntu seemed to get stuck ...
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3answers
4k views

Converting my C:\ to NTFS from EXT4

I was playing with my computer attempting to install Ubuntu 12.04.2 LTS i386, and I accidentally converted my C:\ with Windows on it to EXT4, and Windows hangs on boot. All of windows is still on the ...
1
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1answer
966 views

TV tuner cards loaded but cannot tune

I have installed two separate PCI tv tuner cards in my HP Proliant N40L microserver running Ubuntu 12.04.2 LTS. Both cards are successfully recognized and registered as DVB-T cards Attempting to use ...
1
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1answer
57 views

Computer went to sleep during upgrade to 13.04, I get a blinking start up screen after restart

I updated from 12.04 to 13.04, and in the middle of running the upgrade, I accidentally put the computer to sleep (HP mini 2011), thinking all was lost I stupidly restarted the computer. Now there is ...
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0answers
20 views

motherboard issue with installing 12.04? [duplicate]

I built myself a gaming desktop and I tried installing 12.04 on a new EUFI motherboard but, it missed the OS. I tried installing 13.04 and it worked perfectly. Is there a way to install 12.04 also on ...
1
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2answers
129 views

Problems when booting Ubuntu 12.04 on separate hard drive

I just got Ubuntu 12.04 (also have it on my Chromebook), and I installed it on my seperate hard drive. Whenever I try to boot my computer up, I get Windows Boot Manager, as expected. But then there's ...
0
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1answer
120 views

How/Where do I get Ubuntu Drivers?

I have an Acer Aspire 5745 laptop with all it's stock hardware, when I install Ubuntu 12.04.2 via windows installation it works, except for the drivers. There are no drivers installed, and I have ...
4
votes
4answers
2k views

SSH connections dropping after two or so lines

I'm actually having a bit of an odd problem. I'm running Ubuntu Server 12.04, with a minimal set of packages: The base system, sshd, and an IRC server. I must allow someone else to configure the ...
1
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0answers
30 views

iTunes on Ubuntu 12.04 [duplicate]

How do I install Apple iTunes on UBuntu 12.04 in order to connect my iPhone with my PC? I tried PlayOnLinux, but it says "wine does not support usb yet" when trying to install it.
1
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1answer
494 views

Software sources crashes

Software sources crashes when I run it from terminal I get this error: sudo software-properties-gtk Traceback (most recent call last): File "/usr/bin/software-properties-gtk", ...
4
votes
1answer
7k views

Ubuntu 12.04 - I can ssh into the server but sshd is an unrecognized service

I'm trying to setup key based authentication for ssh on my Ubuntu 12.04 server following this tutorial and that. It's not really working but I have another problem slowing me down, which is that I ...
3
votes
1answer
208 views

Why cant i find site_perl directory in Ubuntu?

I am compiling a program from source code. It requires path to my site_perl directory. When I run perl -V, i see that there is /usr/local/lib/site_perl at the end but i cant find the directory in the ...
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2answers
655 views

Is it needed to upgrade perl to new stable version in ubuntu 12.04 LTS [closed]

as above! thanks! Can you suggest a book for this question?
1
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1answer
338 views

Grub menu doesn't appear on HP Z220 Workstation

I bought an analytical machine for some research purpose, the company provided an HP Z220 Workstation with Windows 7 Professional preinstalled. I have tried to install Ubuntu 12.04 on this computer. ...
0
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1answer
153 views

change from ubuntu 12.10 to 12.04 [duplicate]

actually I was updating from ubuntu 12.04 to 12.10 suddenly my machine got switched off then when i restarted the machine I am facing the following problems: 1. Even after doing shutdown it is not ...
0
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1answer
78 views

Problem in upgrading from 12.04 to 12.10

While updating Ubuntu from 12.04 to 12.10, it is giving an error: Failed to fetch http://in.archive.ubuntu.com/ubuntu/pool/main/m/mesa/libxatracker1_9.0.3-0ubuntu0.1_i386.deb Connection failed [IP: ...
1
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0answers
491 views

Can't get kernel module `uinput` started

I'm trying to get my BD remote to work with my Ubuntu media server and XBMC. I've followed the directions here: http://forums.boxee.tv/showthread.php?t=15200 I get everything installed, but uinput ...
1
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1answer
1k views

How to mount a CD/DVD in DOSBOX?

I'm using DOSBox 0.74, which works properly and can successfully mount a "c" drive. However, I don't know how to mount a dvd drive. I'm trying to install Star Control 3 from a disk so that I can ...
0
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0answers
19 views

How to stop Update Manager from trying to force upgrade to 13.04? [duplicate]

So I am running 12.04.1 LST on my machine. I never upgraded to 12.10 because apparently it doesn't work well with my EVGA 550Ti. Now, when ever I boot up the Update Manager notifies me that not all of ...
3
votes
1answer
6k views

Disable password prompt upon startup in Ubuntu Server

Currently, each time I restart my Ubuntu Server, it's prompting for a login password. How do I disable this feature so that I when I restart my Ubuntu server, it doesn't require me to enter ...
2
votes
3answers
3k views

Firefox 21.0 wont start on Ubuntu 12.04

Firefox 21.0 won't start on my Ubuntu 12.04 system with error message: Your Firefox profile cannot be loaded. It may be missing or inaccessible. I have tried everything including removing the ...
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0answers
70 views

Unity stopped working in 3D after software update

Today I installed some update package and an hour or two later when I restarted my machine, Unity was running in 2D. There were two Radeon packs in those updates which I suspect are the culprit. I ...
0
votes
2answers
173 views

Impossible to connect to wifi

Following my question from yesterday where I couldn't find one particular wifi, this wifi does now appear correctly. But I can't connect to it. I have the right password (it is in my phone, and I use ...
0
votes
1answer
1k views

Wifi is connected but internet not working?

I have a lenovo x230 running ubuntu 12.04lts. I've been using it just fine for a while, but all of a sudden the internet's stopped working. It's connected to the router just fine (I can see the ...
3
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2answers
6k views

I'm trying to install VMWare tools on Ubuntu 12.04.2 LTS and I seem to have a problem with Kernel headers

I have Ubuntu 12.04.2 LTS installed on a VMware machine on Windows 7 host. I seem to have a problem with Kernel headers when trying to install them I did: sudo apt-get install gcc make ...
0
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1answer
42 views

Ignore Warning prior to upgrade?

Below is a warning that I got when I attempted to upgrade my ubuntu from 12.04 to 12.10 I wish to upgrade because currently my screen brightness issue isn't resolved and I strongly feel it's due to ...
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2answers
81 views

Typing lower case 'i' anywhere in Ubuntu 12.04 causes a 'no sign' to appear. Hitting 8 causes my window to maximize

I have no idea what I've done, but this morning, I think I might have fat-fingered the keyboard and now whenever I type a lower case i a no sign pops up (circle with diagonal slash). Unusually ...
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2answers
5k views

“No screens found” after apt-get upgrade with Intel video card

My Mythbuntu installation (based on Ubuntu 12.04), which has been running without issues for years, suddenly won't start X Windows after doing a simple "apt-get upgrade". Several packages were ...
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2answers
3k views

Can not boot 12.04LTS from USB HDD [duplicate]

I have installed Ubuntu 12.04LTS on an external USB HDD, and put the bootloader onto the same drive. This is so I can interrupt the boot sequence on the PC and force the system to boot from the ...