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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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 ...
3
votes
2answers
8k 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 ...
1
vote
1answer
530 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 ...
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 ...
16
votes
12answers
65k 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?
14
votes
1answer
45k views

Synaptic touchpad on laptop not working

I'm using a laptop with built-in touch-pad that works in Windows 7. But after I switched to Ubuntu 12.04 LTS, it's not working now.
9
votes
1answer
5k views

Unable to resume after suspend

I'm using Ubuntu 12.04 & everything about it is great except that it just won't resume after suspend. I've tried the suggestions listed in this thread Entire system freezing after pressing ...
15
votes
10answers
63k 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 ...
3
votes
1answer
4k 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 ...
10
votes
4answers
43k 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 ...
4
votes
2answers
65k 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 ...
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 ...
21
votes
2answers
52k 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)
18
votes
6answers
26k 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 ...
4
votes
2answers
23k views

How to set up a broadband connection

I have a bsnl broadband connection. I don't see any settings for broadband in Ubuntu, and I can't just connect automatically -- "wired connections" shows no connection. I see an option for mobile ...
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 ...
33
votes
5answers
69k 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 ...
22
votes
8answers
49k 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 ...
13
votes
4answers
40k 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 ...
21
votes
3answers
43k 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 ...
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 ...
18
votes
11answers
66k 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.
8
votes
10answers
41k 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 ...
5
votes
2answers
5k views

Accidently installed grub to usb

While doing a fresh ubuntu install (dual boot with XP using resize), I somehow managed to install grub to the source usb instead of to the harddrive. Normal harddrive boot goes straight to XP. Booting ...
2
votes
2answers
13k 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 ...
18
votes
4answers
32k 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 ...
14
votes
10answers
61k 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 ...
12
votes
1answer
32k 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 ...
16
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 ...
14
votes
5answers
35k views

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

My Ubuntu 12.04 install is on /dev/sda5 and Windows 7 is 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
7answers
24k 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.
5
votes
2answers
10k 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 ...
4
votes
1answer
7k 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. ...
13
votes
3answers
6k views

Will final version of 12.04 use the power management changes found in kernel 3.3

I have seen in some version of Ubuntu that instead of making a huge change to update to the latest kernel, they take some of the good stuff out of it, for the sake of stability and put it on a ...
5
votes
6answers
45k views

HUAWEI E173 on Ubuntu 12.04

I have a HUAWEI E173 usb stick to access the internet. It works normally on windows but I'd like to be able to use it on my Ubuntu system as well. I plug it in, and after 25-20 seconds the status ...
5
votes
5answers
47k 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 ...
5
votes
2answers
8k views

Micromax 3G mobile internet modem not being detected

I have Micromax 3G modem, and I inserted it in the USB port, but it is not being detected by Ubuntu 12.04, that I'm using from a Live USB. I tried creating a mobile Internet connection, however, ...
4
votes
1answer
7k views

mount:can't read proc/mounts

I've installed Ubuntu, but when it is loading it gives following error: mount:can't read proc/mounts. Can't fount such file or directory However, OS continues loading but when I try to enter system ...
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?
4
votes
3answers
46k views

12.04 won't boot from Live CD or USB

My laptop (the only PC left in my home to install Ubuntu 12.04 now that it's out) is not booting from Live CD or USB. I get past the screen with the little person in the circle. but right after that, ...
4
votes
3answers
7k 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
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
16k 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 ...
22
votes
4answers
42k 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
2answers
39k 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 ...
10
votes
3answers
10k views

Sharkoon Drakonia Gaming Mouse doesn't work at all

I've got a new Mouse "Sharkoon Drakonia", a gaming mouse with 11 buttons and high changable resolution. The problem is, that the mouse doesn't work. Only the LEDs are visible, but wether the buttons ...
14
votes
3answers
8k views

APT wedged by kernel version mismatch

Apt is seemingly unable to do anything useful for me, repeatedly giving messages of this form: dpkg: dependency problems prevent configuration of linux-server: linux-server depends on ...
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 ...
3
votes
1answer
12k views

Can I install safely Ubuntu on my Mac?

I have some questions related with Ubuntu. I have an iMac, with OS X Lion and Windows 7 installed. So, can I install Ubuntu alongside Mac and Windows without any problems? Can I resize my Mac's ...
5
votes
2answers
8k 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 ...