Fourth LTS (Long Term Support) release of Ubuntu, code-named Precise Pangolin. Released on 26th April, 2012. Will go End Of Life (EOL) April 2017. Only use this tag if your question is version-specific.

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14
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0answers
61k views

Wireless doesn't work on a Broadcom BCM4312 [duplicate]

Possible Duplicate: How to Install Broadcom / STA Wireless card (BCM43XX) As stated, I've just upgraded to 12.04 and my Dell Inspiron 1545 isn't recognising its wireless card and I was ...
19
votes
0answers
7k views

How well will Nvidia Optimus cards be supported in 12.04? [duplicate]

Possible Duplicate: How well do laptops with Nvidia Optimus work? Will Nvidia Optimus be supported in 12.04?It will be improvements in nvidia optimus drivers? Will no longer need bumblebee to ...
3
votes
2answers
9k views

Ubuntu 12.04 (Wubi) not starting - root.disk corrupted

I have Ubuntu 12.04 installed through Wubi on my laptop. For some reason when i click on Ubuntu on start up (when you have to either select windows or Ubuntu) I get the following screen, the grub ...
19
votes
12answers
75k views

How to control Brightness

I didn't install anything myself, but only Ubuntu 12.04 LTS on an Acer 4741g. I use Fn+left/right to change the brightness, but failed. How can I control the brightness levels?
12
votes
3answers
93k views

Install on Second Hard Drive with startup boot option?

In theory, what I want to do is very simple, but I've done some google research and read some posts on this site and I'm still confused. I want to keep win7 on my primary C:\ drive, and install ...
32
votes
2answers
72k views

How to see/change screen refresh rate or monitor frequency?

My eyes hurt so I thought I should check the screen refresh rate (monitor frequency), but I couldn't find it. Where is it? (in Ubuntu 12)
3
votes
1answer
5k views

Only 'sdb' shows up when installing 12.04 on a new Dell inspiron 14z

I got my brand new Dell Inspiron 14z yesterday, but failed to install Ubuntu. I can boot from a USB stick, and it works well. When trying to install, I confirm that the laptop is connected to the ...
2
votes
0answers
514 views

Does Ubuntu rely on Windows if I install it using the Windows installer? [duplicate]

Possible Duplicate: How to convert Wubi install into regular install? If I install Ubuntu to a new partition using the Windows installer (Wubi), will I be able to uninstall Windows, and have ...
21
votes
12answers
91k views

How do I hide the GRUB menu showing up in the beginning of boot?

I stopped Dualbooting and I dont want to have to choose the OS anymore and just have it load Ubuntu like normal like before? Any help is appreciated.
5
votes
2answers
12k views

Distorted and Choppy Audio

After installing 12.04 Precise on my PC, I have encountered some problems with audio output which did no occur when using Lucid. The sound is choppy and distorted in the lower tones. As I have no ...
24
votes
4answers
47k views

How can I install a realtime kernel?

I have read a lot of threads with similar questions, but after reading the answers, I am very confused. I have found in them lots of url's with repositories but people discusses about which ...
14
votes
4answers
47k views

How to force Multiple Monitors correct resolutions for LightDM?

I am affected by the BUG: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/874241 Otherwise, if like me you have a laptop connected to a second monitor of higher resolution, LIGHTDM at the ...
14
votes
10answers
64k views

Missing launcher after 12.04 upgrade [duplicate]

I recently upgraded to Ubuntu 12.04 and after doing some updates and such my application launcher and title bars (for window dialogues) are missing. Basically the entire Unity GUI is missing! Not ...
18
votes
6answers
28k views

Unsatisfied Link Error and missing .so files when starting Eclipse

I upgraded to the 12.04 beta yesterday. Now, when I try to start Eclipse, I get the splash screen and then this error message: An error has occurred. See the log file /home/gabriel/.eclipse/org....
13
votes
5answers
60k views

How To Debug and Fix PPTP/VPN Client Connection

I am asking a question, which has two sub-questions. Those are how can I get VPN to work on Ubuntu 12.04, either by getting the built-in pptp VPN to work or through manual configuration. Microsoft ...
1
vote
5answers
9k views

Is it possible to install Unity 6.x.x on 12.04?

Is it possible to get the latest Unity without upgrading to 12.10 on my Ubuntu 12.04 PC or will this be backported?
8
votes
2answers
34k views

What does the term “Extended Partition” mean? Is it safe to use this type of partition?

In the image below, what does Extended 103 GB mean?
2
votes
2answers
17k views

After installing Ubuntu from USB, GRUB2 can't be installed!

Hello ladies and gentlemen! I installed Ubuntu alongside with Windows 7 using live USB. It wouldn't let me install GRUB, it says there's a fatal error with the partition chose. I literally chose ...
5
votes
2answers
12k views

Dual boot 12.04/windows 7 After installation my computer reboots straight to Windows. There is no option to boot Ubuntu.

Windows 7 Home Premium Intel i5 2500k CPU ASUSP8Z68-V PRO motherboard GeForce GTX 570 GPU Corsair 120Gb SSD (Windows 7 OS) WD 1 TB HDD I select the USB drive in the BIOS and boot to it ...
22
votes
3answers
44k views

Why does kworker cpu usage get so high? [duplicate]

I recently installed Ubuntu 12.04 on my Samsung laptop alongside Windows 7. Whenever I use Ubuntu (even when its idle) kworker uses almost 90% of one of 8-cores. Even though it doesn't really affect ...
12
votes
1answer
33k views

Unity 3d no longer works after installing 12.04

I just installed Ubuntu 12.04 by cd. Unity 3D will not work now only 2D It worked fine in 11.10 and also when I upgraded to the beta of 12.04 through update manager. I tried both Nvidia Proprietary ...
9
votes
4answers
9k views

ubuntu-12.04-wubi-i386.tar.xz for the wubi installer

I ran the wubi installer (from an extracted ubuntu ISO) and it downloads ubuntu-12.04-wubi-i386.tar.xz but it's slow and non-resumable so I cancelled it, found a mirror of the file online and ...
5
votes
5answers
49k views

How do I get a Broadcom BCM4313 wireless card working?

I upgraded Ubuntu from 11.10 to 12.04, until which wireless was working just fine. After the upgrade and reboot, wireless is not even being detected (When I click the network manager icon in the top ...
2
votes
1answer
3k views

any problems with this partition scheme?

I must create a new ubuntu 12.04.2 boot disk after the /boot directory on my old HDD got corrupted. The following is the partition scheme I'm planning. Is there anything wrong with this for this ...
2
votes
5answers
3k views

Can't boot into Win7 since Update to 12.04

I had dual boot, Win7 64bit, and Ubuntu 11.10 I updated to Ubuntu 12.04 Now I am not met with the prompt asking which OS to boot into (setup via EasyBCD in Windows while I had Ubuntu 11.10) Is ...
3
votes
2answers
17k views

Install on usb external hard drive

I am new to ubuntu and i would like some help. I have a laptop with windows 7 installed but i would love to have ubuntu too because it's a great OS. So i would like to install ubuntu on an external ...
1
vote
1answer
579 views

Why is the file /var/crash/_usr_lib_empathy_empathy-chat.1000.upload empty?

I just experienced an unusual crash: I tried to click on a name entry in the contact list of Empathy. A crash happened. Usually I am asked then if I'd like to report the error to Launchpad, and ...
47
votes
5answers
92k views

How do I move (copy) my entire Ubuntu system to a different hard disk?

The HDD I have my Ubuntu installed is about to fail. I would rather not lose 3 years worth of data, customisation and apps. I am looking for a way to move the complete system (SWAP included, because I'...
25
votes
8answers
60k views

Stuck on reboot and shutdown

I've recently installed Ubuntu 12.04 and I love it. However I have one problem- I am unable to shutdown or reboot properly. When I shutdown my laptop (Acer Aspire 5560) it hangs on the 5 dots and ...
22
votes
4answers
45k views

How to use a real partition with Windows 7 installed, in a virtualbox vm?

My Ubuntu 12.04 is installed on /dev/sda5 and Windows 7 on /dev/sda1. When I am running Ubuntu, I would like to use Virtualbox to run Windows 7 in a VM. The Windows 7 partition is 1 TB and is half ...
18
votes
10answers
73k views

3G USB Modem Not Working in 12.04

When I connect my 3G USB Modem to my laptop with 12.04, nothing shows up in Network-Manager. This modem is working in 11.10 and the modem is shown in Network-Manager but not in 12.04 !! Here are the ...
18
votes
3answers
15k views

Can't connect to any wireless connection after updating

I have a dual boot (windows 7 and ubuntu 12.04) setup and, for (apparently) no reason, I can't connect to any wireless connection on my ubuntu box at all. (on Windows it works.) I think it stopped ...
7
votes
3answers
34k views

Dual boot UEFI Windows 7 and Ubuntu 12.04 (both 64 bits). W7 entry doesn't appear in GRUB

After trying to install both OS during 2 days, I'm confused and getting mad... I have SSD 128 GB and HDD 500 GB both empty. My laptop is Asus K55VM. BIOS support UEFI. What I have done: Install new ...
27
votes
5answers
9k views

Can I apply a different GTK3 theme from the main one to an individual application?

For example, can I keep Ambiance as main theme but assign elementary theme to elementary's app?
19
votes
7answers
25k views

What's the difference between 12.04 and 12.10?

I have an Asus K55V and I'm wondering which version of Ubuntu I should be attempting to use. The website offers 12.04 (LTS) and 12.10.
10
votes
10answers
35k views

Wireless Network in Virtualbox

I just installed my first Ubuntu Server (12.04) instance and immediately ran into the following problems: Running apt-get install or update fails (see below) Running ifconfig produces peculiar IP ...
8
votes
10answers
57k views

Login screen loops unless you login as Guest [duplicate]

I am running a VMWare Player with a Ubuntu 12.04 LTS Precise Pangloin as Guest on my Windows 7. Sometimes I get the shutdown blue screen error in Windows, this time it happened when I was running the ...
4
votes
1answer
8k views

Experiencing major issues on graphic displays

Since installing Ubuntu 12.04, I am experiencing low performance on graphic programs, including video playbacks, etc. As I have checked the intel driver of mine is already at its latest version. It'...
5
votes
1answer
3k views

How to recover files after deleted my Ubuntu partition?

I normally dual-boot with 12.04 and Win XP pro sp3 on a Thinkpad R60. I needed to reinstall windows because of problems piling up, so I ran the computer's built-in hard-disk recovery software. I ...
4
votes
3answers
8k views

“An upgrade from 'precise' to 'oneiric' is not unsupported with this tool” error while upgrading

A brief electrical outage interrupted my 12.04 upgrade. After many tries, which included trying to upgrade from a command line, I was able to access Ubuntu screens again. I find that the 12.04 ...
2
votes
0answers
604 views

E: Malformed line 59 in source list /etc/apt/sources.list (dist parse) E: The list of sources could not be read [duplicate]

Possible Duplicate: How do I fix “malformed line” errors in sources.list? The software center wasn't working so I tried to uninstall and and reinstall and I got this message: E: Malformed ...
14
votes
2answers
40k views

Skype video not working after upgrade from 11.10 to 12.04

I used Skype with this command on Ubuntu 11.10: LD_PRELOAD=/usr/lib32/libv4l/v4l1compat.so skype But since I upgraded to 12.04 it dosn't work and I can't use my video (Webcam). I have latest libv4l ...
14
votes
7answers
49k views

Juniper setup on 12.04

I have a laptop with Windows XP and Ubuntu 12.04 (32 bits). Until now, I used Windows XP to connect to a Juniper VPN but now I'd like to try it with Linux. I read the mad scientist walkthrough (...
24
votes
3answers
56k views

Network manager indicator missing

I recently upgraded from 11.10 to 12.04. My first attempt failed, and I received an error stating that not all of the required packages were downloaded. Before (successfully) attempting again, I ...
20
votes
3answers
12k views

How do I disable the Unity keyboard shortcut overlay?

Is it possible to disable keyboard shortcut overlay in Ubuntu 12.04?
7
votes
8answers
32k views

Why do I get a reboot instead of a shutdown?

After two days of installation, strangely my Ubuntu machine is restarting instead of shutdown from both desktop GUI and command line. sudo shutdown -h now sudo halt (doesn't shutdown, instead freezes ...
5
votes
3answers
15k views

apt-get 403 Forbidden

I've start a new job today and I am trying to set up my machine to run through their Windows server. I've managed to get a internet connection through the server now but now I can't run apt-get ...
8
votes
3answers
7k views

Ubuntu does not put Fedora into GRUB menu

I have installed a number of operating systems, including Fedora. Most recently I installed Ubuntu, and Ubuntu installed its own version of the GRUB bootloader. However, Fedora does not show up on the ...
4
votes
4answers
68k views

How to install drivers for NVIDIA GeForce FX 5200 on Precise

Ok, I'm a total Linux noob. I was able to install 12.4 without issue, except that it says in the system settings that the graphics card/driver is "unknown". I have NVIDIA GeForce FX 5200, and have ...
8
votes
2answers
8k views

Ubuntu deleted files from guest account desktop

I have Ubuntu 12.10 and was using guest account. I downloaded some files on desktop and shutdown my m/c after use. Now today when I logged in to guest account to copy those files but surprisingly ...