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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Optimizing 12.04 LTS for Matlab R2013a

Good day I would like to know what steps could be taken to optimize Ubuntu 12.04 LTS for running Matlab R2013a (64bit). We have run the same test on the same machine with Windows 7, Windows 2008 ...
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2answers
149 views

Please help me, install Ubuntu alongside Windows 8

I don't intend to duplicate the question, but I haven't found this same problem. I'm newbie and now I'm trying to install Ubuntu 12.04 LTS alongside Windows 8. My storage are partitioned as: 120 ...
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1answer
188 views

Why am I running 3.2.0-32? [duplicate]

I am running xubuntu 12.04 LTS : cat /etc/issue Ubuntu 12.04.2 LTS \n \l When I do uname -a I have : Linux tolede 3.2.0-32-generic #51-Ubuntu SMP Wed Sep 26 21:33:09 UTC 2012 x86_64 x86_64 ...
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296 views

“E: Package 'gs' has no installation candidate” for mindtouch installation

I am following the instructions on this site Installing Mindtouch on Ubuntu. At the part where I am asked to install dependencies packages, apt-get install html2ps poppler-utils html2text wv gs tidy ...
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1answer
2k views

Unity Launcher missing and Terminal shortcut stopped working

When I restarted my Ubuntu after it being updated, I found the Unity launch bar was gone. I tried looking up several solutions online, blindly typing in the commands that others suggested, and I ...
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3k views

Install clang 3.3 on Ubuntu 12.04 and see unmet dependencies errors

ubuntu@ubuntu-VirtualBox:~/Downloads$ sudo apt-get install clang-3.3 clang-3.3-doc libclang-common-dev libclang-dev libclang1 libclang1-dbg libllvm-3.3-ocaml-dev libllvm3.3 libllvm3.3-dbg lldb-3.3 ...
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1answer
6k views

how to allow VMs and host ping each other?

I'm trying to set up a few VMs of ubuntu on my windows 7 machine. I need the machines to be able to ping each other and I would like to assign them a FQDN. The purpose of this project is to set up a ...
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1answer
3k views

Make an Amazon EC2 instance ask for sudoing password

I've launched an Amazon EC2 instance of Ubuntu Server 12.04 and it's all fine except, unlike with my local Ubuntu, the EC2 instance never asks for any passwords when I'm sudoing with the command line ...
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1answer
161 views

Framebuffer Imageviewer on Ubuntu 12.04.2 virtual machine

I'm trying to view some jpg's on my Ubuntu VMWare server using fbi but I'm getting "/dev/fb0: No such file or directory", which is valid since it doesn't exist. Using hwinfo --frambuffer it lists the ...
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1answer
114 views

Frostwire not opening

I have just donwloaded the application FrostWire. I was trying to open it, but it just won't open. The icon does it's flashing, and then it goes back to the normal background, no windows from that app ...
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203 views

Switched to Compiz for OpenGL on Xubuntu 12.04, now laptop screen doesn't turn on after a suspend

I recently added the CompizConfig settings manager to resolve screen tearing while watching full screen video (it worked! no more tearing!) but now every time I close the laptop screen and the system ...
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718 views

Error: need a repository as argument?

how to fix this problem?! Help me please !! mizo@mizo-OptiPlex-GX270:~$ sudo add-apt-repository ppa: upubuntu-com/icons2 Error: need a repository as argument
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1answer
188 views

Trouble transferring files to Ubuntu server from mac

I am trying to setup my first home server and haven't had too much trouble so far. However I can't seem to find a way to transfer files from my laptop (Macbook Pro) to the server. I have been able ...
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2answers
7k views

Nvidia driver install [duplicate]

I tried blacklisting and everything I could find on the internet used with root and Alt+Ctrl+F1 with no solution : nvidia-installer log file '/var/log/nvidia-installer.log' creation time: Mon Jun 17 ...
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1answer
446 views

Ubuntu Update Manager fails to install upates (Version 12.04 LTS)

I am known about Ubuntu for quite a while but only a couple of months ago I started using it more often as my secondary OS. Anyway, my problem is that the update manager keeps failing to install the ...
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2answers
22k views

How can i install php 5.5 in ubuntu [duplicate]

How can i replace 5.3 with php 5.5 un ubuntu.I tried in google and failed to find repository. Please help me
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1answer
704 views

VMWare Workstation 9.0.2 for Linux build 1031769. Failed to execute child process “@@BINARY@@”

I got the error after installing VMWare Workstation 9.0.2. Here is the output the uname -a command. Linux dmitriev-pc 3.5.0-34-generic #55~precise1-Ubuntu SMP Fri Jun 7 16:25:50 UTC 2013 x86_64 ...
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2answers
2k views

Wine Install error ubuntu 12.04.1 32-bit

When I try to install wine through terminal, it throws the error: nits@nits-desktop:~$ sudo apt-get install wine Reading package lists... Done Building dependency tree Reading state ...
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1answer
313 views

Kubuntu 12.04 is stuck in a login loop

I have an Acer Aspire 5830TG laptop dual booting with Windows 7 and Kubuntu 12.04. I was trying to install some packages, and while doing so I got the following error message: Could not get lock ...
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2answers
863 views

How can I update Gwibber to work with Twitter API v1.1?

Twitter deprecated v1.0 of their API on Tuesday and I'm curious to know if I can update Gwibber to work with the new API (given Gwibber's Twitter function has stopped working). Would appreciate some ...
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2answers
2k views

Why can't I see my Wireless Router a D'Link DIR 615 - Ubuntu 12.04? I can see all the other active wireless connections.

Details: I have a D'Link DIR 615 Router that I have been using for 3 years with Ubuntu 11.10 - with no problems. I have a Dell Inspiron 15R with dual boot of Windows 7 and now, Ubuntu 12.04 - after ...
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0answers
56 views

Various problems upon boot

I installed Ubuntu 12.04 32-bit on an Asus Eee PC with 160g HDD and 2GiB RAM. It ran fine for two days, then today, when I booted up my computer, my color scheme had changed. The top bar on my ...
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1answer
154 views

How to restore Cairo Dock Switcher

I somehow managed to hide my Cairo Dock Switcher and I can't seem to get it back. Is there a way for me to re-download the applet without re-installing Cairo dock?
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27 views

How do I make Ubuntu the default partition? [duplicate]

Recently I asked this question and it was marked as a duplicate and not correctly answered. I was even referred to this link which does not address what I am questioning about... How to uninstall ...
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1answer
1k views

Ubuntu 12.04 Dell 6400 no network

I have just installed Ubuntu 12.04. My network is not working: no wireless, no cable network. There are some posts on forums about it, however I was not able to fix it. It is possible to turn off ...
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3answers
2k views

Package ignore when running apt-get update

I'm trying to install Centrify Express on Ubuntu Server 12.04. I know there are several ways of doing this, but I've found that the most straightforward way is to add the Canonical archive repository ...
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1answer
107 views

Is it there a full movie editing software that I can get that has a chroma keyer?

I am starting to get into the world of film making/editing. I tried to use iMovie, but it just doesn't have the functionality that I need. Is there a good movie editing software that has a chroma ...
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265 views

After installing Ubuntu 12.04 alongside Windows 7, I am unable to use my mouse, connect to the internet, or power down!

I recently installed Ubuntu 12.04 alongside Windows 7 on my 64 bit laptop. After installation, everything worked fine until the next time I restarted the computer. The next time I restarted, my mouse ...
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1answer
74 views

installed ubuntu 12.0 on employer but did not display unity desktop

I installed ubuntu desktop 12.0 LTS on employer but did not display unity desktop. I try to use sudo apt-get install unity It said the unity had been the latest version. Odes this mean hard problem? ...
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1answer
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W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available:

I get the following error when i do sudo apt-get update W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available: ...
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1answer
86 views

Installation of Ubuntu 12.04 terminates every time

I tried to install Ubuntu 12.04 on my laptop alongside Windows 7 as a dual boot PC. After selecting the option Install Ubuntu alongside Windows 7, a black screen comes up showing the message ...
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389 views

suspend in ubuntu 12.04 doesn't work correctly

After click the "suspend" in ubuntu 12.04 laptop screen turns black, but does not turn off. Notebook cooler continues to work, the LEDs on the connected USB flash drives are still lit. What to do? ...
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2answers
4k views

What is the matter with wine 1.6 in PPA:ubuntu-wine/ppa?

I use ppa:ubuntu-wine/ppa in 12.04. Today when I update system , it remove my old wine 1.5, but 1.6 can not be installed. What about you ? Thanks Edit: I use 'apt-get dist-upgrade' to update ...
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7k views

Installing boost on 12.04- have ran “sudo apt-get install libboost-all-dev”- now what?

I want to install the boost libraries on Ubuntu 12.04 so I ran: sudo apt-get install libboost-all-dev but now searching for a folder named "boost" I cannot seem to find where the files have been ...
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1answer
147 views

How to make bash scripts execute when clicked upon?

I am trying to create a bash script for the Dash home button, as I am trying to fully replace the Unity dock with the Cairo Dock. Unfortunately, I have been unable to make it so that the script only ...
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1answer
245 views

Debug WOL failing to configure on Ubuntu Server 12.04

I have a PC running Ubuntu Server 12.04. I'm having trouble getting this to wake on LAN (WoL). I'm now pretty certain I've narrowed this down to an issue with Ubuntu or the way it's configured. ...
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1answer
60 views

How to recover files from failed upgrade?

I tried to upgrade from 12.04 to 12.10 and am encountering a problem with graphics drivers. My plan is to re-install 12.04. Before I do that, I would like to copy some files from the machine. I'm ...
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0answers
206 views

Ubuntu freezes with Presonus FP10 plugged into JACK

I want to use my Presonus FP10 with jack and Ardour in Ubuntu 12.04 (64 bit). Here are some outputs: kane@tripkane:~$ ffado-test ListDevices Cannot create thread 1 Operation not permitted ...
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198 views

How to increase PPTP and OpenVPN connection timeout in Ubuntu 12.04?

I can't use PPTP and having hard times connecting with OpenVPN. I've debugged my VPN connections and saw the problem was always the connection timeout. However I couldn't find any options to change ...
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1answer
46 views

multiple versions of ubuntu on laptop

I got laptop from friend who tried to install 13.04 and don't know the status. Would never reboot. I installed 11 and then upgraded to 12.04. When I reboot it wont' boot but hard reboot brings up ...
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0answers
433 views

Intermittent wireless internet connection in Ubuntu 12.04

I recently upgraded from 11.10 (Oneiric Ocelot) to 12.04.2 LTS (Precise Pangolin) (64 bit version) and suddenly my wireless internet connection has become intermittent. For example, when I am loading ...
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1answer
64 views

pm-utils broke my system and didn't fix it when I purged it and all of its dependencies

Before I installed pm-utils, closing the lid just turned the screen off. I installed pm-utils, and now the screen turns off and my system crashes, kind of a big issue. I then purged pm-utils and all ...
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1answer
692 views

how to properly allocate partition space

I want to dual boot Ubuntu 12.04 alongside Windows 7 on a Sony Vaio notebook. When the option comes up to drag the divider left or right for setting the partition size, it does not specify which would ...
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1answer
703 views

How to modify the title bar in elementary desktop?

I installed Elementary desktop in Ubuntu 12.04. but for some reason the title bar retains the theme of Ubuntu. any advice for this? Can it can be changed?
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1answer
90 views

Does Ubuntu automatically delete older versions of software when there is an Update for them?

I run 12.04 LTS and was wondering if by updating my Firmware, do the old versions delete or will it all build up in my system and take up space?
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1answer
1k views

Installing PCRE from source…make install error!

I was trying to install pcre as it was needed by swig which is needed for installing gem5, anyway I am receiving this error after successful ./configure and make (however it's interesting that ...
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1answer
35 views

Ubuntu 12.04 LTS

I tried installing Ubuntu 12.04 LTS alongside my windows 8 by downloading the image and copying it to an empty DVD disk and tried booting it from the CD but it said some files are missing. Anyone know ...
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1answer
725 views

non-PAE installer hangs after a brief flash 'Installing Release Files…' ; how do I get past this?

I have run Ubuntu 10.04 LTS, Ubuntu 11.10 and Lubuntu 12.04 (non-PAE) Minimal Installers off a CD and after selecting keyboard layout, connecting to a wireless network and choosing the GB Ubuntu ...
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1answer
250 views

Keyboard not working when i hold any key?

Pleas someone help me i am new Ubuntu user. When i press any key from my Toshiba laptop satellite pro L 300 keyboard it's not works properly But it is working one press one character type.I want to ...
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1answer
105 views

How to copy a website inside my WWW to another computer and make it work?

I have designed a website to create and sign certificates (.csr, .key, .crt, .p12) in my netbook using Ubuntu 12.04. Now I have to demonstrate that it works but my teacher wants to test it using a lab ...