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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How to make LTSP log into the Windows 7 VM

I have managed to install Ubuntu server and Mythbuntu and a remote front-end. Now I think it could be nice to integrate my Windows machine with the server and use Linux Terminal Server Project (LTSP) ...
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Why won't fancontrol start on boot, but will start with sudo?

I've configured /etc/fancontrol to my liking # Configuration file generated by pwmconfig, changes will be lost INTERVAL=10 DEVPATH=hwmon0=devices/platform/it87.552 DEVNAME=hwmon0=it8718 ...
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447 views

How can I recover Ubuntu 12.04 when Grub can't find it?

I upgraded to Ubuntu 12.04 a couple of months ago, and haven't done anything special since. No dual boot installation or anything of the like, and I'm running a 32 bit machine. This morning tracks ...
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2answers
3k views

Problem with AMD HD 8xxx Series graphics card

I bought a Dell inspiron 17R 5721 it has 2 graphics cards, an Intel(R) HD Graphics 4000 and a AMD Radeon HD 8730M. Intel's card (on board) works just fine after doing what it says in this article. ...
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140 views

UBUNTU 12.04LTS and virtualbox

When I used win xp as virtual machine under 10.04lts, it worked fine. we shared printers attached for win machines with different ip address. no issue. stable and reliable. on upgrading the server to ...
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53 views

Nested Sequence of Directories!

When I searched for a file where one could (semi)control brightness I accidentally found a nested sequence of directories like below aneesh@nb-14:~$ cd /sys/class/graphics/fb0/device ...
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940 views

Failed to start greeter

After some pretty advanced configuration and kernel compilation, I've got EFI booting and Intel Graphics enabled on my MacBook Pro 8,3 and the ATI proprietary driver disabled in order to be able to ...
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2answers
822 views

My computer runs slower now on Ubuntu

Recently I have been noticing that my laptop's speed has decreased after installing Ubuntu. I am on a MacBook Pro and I have 4.2GHz and 4GB of RAM. I used to play games like Minecraft before on it ...
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2answers
10k views

How to switch back from Chrome OS to Ubuntu 12.04 on Acer C7 chromebook?

I have Ubuntu 12.04 installed on my Acer C7 chromebook. Once I installed it, I never switched back to Chrome OS. But yesterday when I turned back home, I found that my laptop led was opened, and the ...
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83 views

Driver BCM43277 not working propely. Missing wlan0 interface

I have an Acer 5253 and I had installed all the drivers. The wifi works fine but when I open a terminal it says: root@zoli-Aspire-5253:/home/zoli#airmon-ng Interface Chipset Driver eth1 ...
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4k views

How to remove single file from /usr directory?

I am using Ubuntu 12.04 LTS, and I want "XnRetro.desktop" file to be removed from directory /usr/share/applications using terminal . How to do it ? I am new into Linux & I know something like ...
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184 views

External sound card stops functioning after suspend

After reading: Re: Cannot suspend or hibernate Asus desktop ubuntu 12.04 I got the suspend working on a desktop. The only problem is that the external sound card that I have (Audiophile 2496) stops ...
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192 views

Cannot auto mount NAS running samba on 12.04

I have tried to auto mount my NAS running samba with the following modifications to my fstab file without any luck: //10.0.1.4/NAS /home/wayne/NAS smbfs rw,username=,password=,uid=1000 0 0 The ...
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1answer
807 views

How to setup non-local bridged network for Xen?

I've had an absolute nightmare the past 5 days trying to set up the proper bridged networking for Xen. I've tried so many guides and all have failed to provide a solution for my specific question. ...
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2answers
2k views

Folder transfer Mac OSX to Ubuntu 12.04

I'm trying to transfer files from my old Mac OSX to my new laptop running Ubuntu 12.04. I've drag and dropped the folders onto an external HDD formatted as HFS+. When I drag and drop these folders ...
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798 views

How do I put apps on my desktop?

I just installed GIMP and Mumble and many other things from Synaptic and now my sidebar is getting a bit cluttered. I want to put GIMP and other apps on my desktop not my side-bar. I also know that ...
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991 views

Ibus on Xubuntu 12.04 how to adjust input method specific settings?

I am on Xubuntu 12.04 trying to get my PinYin input method in iBus to write traditional character. I know that there are suppose to be more preferences under each input methods but I am unable to ...
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100 views

Difference between a 'runlevel' or a 'multiuser runlevel'?

Is there a difference when I say multiuser runlevel and when I say just runlevel ?
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286 views

Issues about insalling Cinelerra video editor?

In order to install Cinerella I typed in terminal: sudo add-apt-repository ppa:cinelerra-ppa/ppa sudo apt-get update sudo apt-get install cinelerra But after last command typed, my computer gives ...
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1answer
70 views

How to remove windows [duplicate]

I want to remove windows and delete it's partition. Also I want to enlarge the Linux partition to fill up the free'd up space. Can anyone explain me how to do that? I installed it via windows using ...
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1k views

Can't run Second life firestorm viewer (32bit) in ubuntu 64 bit

I'm trying to install a Second Life client called Phoenix Viewer. On the first attempt, I got a message about X errors. I searched the net all I could see to fix 32 bit apps and run them under 64 ...
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2answers
53 views

Booting from USB

I created a bootable USB and booted from the USB drive, but I don't get the Ubunutu screen when the computer starts. I get my usual windows desktop. I don't get the welcome screen with the options ...
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3k views

ext4 partition works but fdisk shows no valid partition table

I have a 1TB disk with a single ext4 partition. here's some output of parted print all command Model: ATA Hitachi HDS72101 (scsi) Disk /dev/sdb: 1000GB Sector size (logical/physical): 512B/4096B ...
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1answer
1k views

How to show all the Windows partitions on Ubuntu 12.04 [duplicate]

I have installed Ubuntu 12.04 with wubi.exe installer. It was installed successfully. But it is now showing two of my windows drives, but not showing other two. I have four in total. How can I fix ...
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1answer
17k views

GUI does not start on boot

Ubuntu 12.04 does not start x after boot up. Worked until now without any problem, and last shutdown was clean. After text log in I can run startx, but no tray and Alt+Tab does not working. Command ...
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Enable Wireless option is disabled in network settings in Ubuntu 12.04

My wireless connections have regularly disconnected with the Wireless option disabled in network settings. This problem occurs frequently. After restarting, I can access. But again an error comes ...
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252 views

WiFi transfer of files from Desktop to Note 800

My desktop (Intel Q2C processor)is on Ubuntu 12.04 64bit. Connected to a wifi router through LAN port. I bought a Samsung Galaxy Note 800. Is there a way to wireless-transfer files from desktop to the ...
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1answer
2k views

Mobile Partner does not run on Ubuntu 12.04

I am using Ubuntu 12.04 on a Lenovo e430 laptop. For the next month I am going to stay in a flat with no internet connection, so I want to use Huawei e173 modem to connect. ( And share the connection ...
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2answers
3k views

Cannot get USB gamepad to work in Ubuntu 12.04

I'm trying to get a cheap usb gamepad to work under Ubuntu 12.04 running on my arm chromebook (using chroot). After plugging in the gamepad, dmesg shows: [ 5879.411510] usb 2-1: new low-speed USB ...
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332 views

why the used-space of “df -h” is larger than the result of “du -hs /”?

the result of "df -h" shows below: /dev/sda1 5.6G 3.2G 2.2G 60% / udev 992M 4.0K 992M 1% /dev tmpfs 401M 752K 401M 1% /run none 5.0M 0 5.0M ...
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768 views

Ubuntu 12.04 ethernet is not working?

I recently installed ubuntu 12.04 LTS, and have tried every method out there to get my Ethernet cable to work...unfortunately not one of the methods out there worked for me. here are some of the tests ...
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967 views

SSH Key / Password Issue

I am running Ubuntu 12.04LTS. I am trying to upload to github via SSH. I generated my key using keygen, and made sure that github has the key as specified. However, when I try to ssh in I keep ...
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Turning off all the anoying password prompts [duplicate]

I recently installed Ubuntu 12.04LTS. Its been 2 days that I'm looking for a solution for the enormously annoying password prompts. The suggestions that i have found, on all of the forums, did not ...
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94 views

Installation problem downloading language package

I am installing ubuntu 12.04 version. All i have done partition and also made user name and password but its downloading language pack for 2 hours what i have to do now?
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761 views

Sound/Video playing in slow motion on 12.04 with Bluetooth + Chrome, but not Firefox

I have been using the same Plantronics BT Headset with my HP laptop and BT USB dongle running 12.04 since 12.04 came out. Just in the last week or two I have started to have a problem where playing ...
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1answer
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Second monitor (VGA) isn't detected ubuntu 12.04 ATI Radeon HD 5400

I have tried several solutions but nothing works. First of all, I'm using ATI Radeon HD 5400. The first monitor (which works) is connected to the graphic card by DVI, the second monitor (which isn't ...
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1answer
134 views

How to list the source URLs from saved html files from a folder?

I have a lot of html files in a folder. I used them in a project. I want to build a References.txt file in which the URL from which each html file was saved will be listed with the time stamp on which ...
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2answers
1k views

I can't use HTTP Proxy in the shell

I am a Linux Ubuntu user and I have some problem setting the proxy on my entire system. I go into the network settings of my Gnome and then I go to the Network Proxy settings mask and then I put my ...
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515 views

How to allow Guest session to access /home or other directories? [duplicate]

I want the Guest session to be able to access /home, maybe as read-only, and other directories as well.
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5k views

error processing linux-generic-lts-quantal, dependency problems - leaving unconfigured

This happened during this mornings dist-upgrade along with apport failure. :~$ sudo apt-get dist-upgrade Reading package lists... Done Building dependency tree Reading state information... ...
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Ubuntu 12.04 Making Laptop super hot

Hello I am using Ubuntu 12.04 (dual boot with windows.) The laptop is getting really hot and fan starts running wildly on Ubuntu even if no applications are open.Windows 7 is running absolutely ...
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2answers
4k views

Samba+PowerBroker (aka LikeWise-Open) integration not working

Ubuntu: 12.04 x64 PBIS: Linux 2.4/2.6 kernel 64-bit DEB (from BeyondTrust website) Samba: 3.6.3 (from Ubuntu repo) We are having problems getting samba to integrate with PowerBroker (aka ...
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1answer
666 views

Using Ubuntu 12.04 LTS no sound in select apps

I have Ubuntu 12.04 LTS and for some reason I get no sound whatsoever in a few programs. VLC, Hydrogen, GNOME MPlayer, and Movie Player work fine, but Banshee, Rythmbox, Chromium, Konquerer and ...
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1answer
363 views

Upgrade Ubuntu 11.10 to 12.04 Without the Button in Update Manager

I would like to Upgrade from Ubuntu 11.10 to 12.04. I read the instructions, but the "Upgrade"-Button didnt occur within my Update Manager Window. Is there another way to upgrade? would be delighted ...
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1answer
7k views

Hostapd wifi AP [closed]

I am trying to start wifi AP with hostapd, followed carefully all of this instructions. For now, from my phone, i see network, i connect to it, but it stucks at receiving ip address and then just ...
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670 views

Installing v. 12.04.2 graphics card not recognized chrome9

I've installed Ubuntu 12.04.2 on my home PC which previously ran XP, this computer isn't a dual boot, I opted to remove windows. Install seemed to go without a hitch until I went to reboot, computer ...
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2k views

How to check whether dhcp is enabled or not in ubuntu 12.04

How to check whether dhcp is enabled or not in ubuntu 12.04? Is there any command for that
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144 views

The Software Center will open but will not respond

I am using 12.04 and have only recently started using Ubuntu. I am very confused and would appreciate the help. Thank you.
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74 views

Ubuntu installation for specific usage

I want to install a latest or optimum version of Ubuntu as a dual boot with my Windows 7, 64-bit. I want to install Ubuntu to run OpenFOAM which is an open source CFD software. My computer Specs are ...
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176 views

getting superuser permissions when I'm on an “administrator” account

I'm trying to install the java plugin for mozilla. I have followed the instructions on the java website, but when I try to create the link to the mozilla directory, I get 'permission denied'. I'm ...