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.

learn more… | top users | synonyms (9)

0
votes
0answers
5 views

ARToolKit-Recognize multiple markers

i'm having a problem with ARToolKit for the recognition of multiple markers. For train pc on my new markers i have to launch :MK_PATT But when i insert the camera parameter filename ,i have this ...
0
votes
0answers
6 views

Incorrect screen detection on 12.04?

All of a sudden I get a black stripe on the right edge of the screen, and mouse pointer can't move there. Also, the desktop does down beyond the screen a bit. I'm running 12.04 on Lenovo ThinkPad ...
1
vote
0answers
7 views

WiFi and Lan Network is not working - Ubuntu 12.04

I have a problem with my network connection. I have been using the same laptop with Ubuntu for more than a year, and suddenly yesterday all the connections stopped working (both wireless and wired). ...
0
votes
0answers
3 views

Workstation Setup on an Active Directory

Excuse my ignorance in matters of System administration. I am a developer trying to integrate development workstations with an Active Directory based network. We have hundreds of Machines running ...
0
votes
0answers
10 views

zfs broken after upgrading package spl

Just now I did an apt-get upgrade, which upgraded package spl to 0.6.4.1. After rebooting, my zfs-formatted disk failed to mount. How should I regain zfs functionality? All zfs commands are now ...
2
votes
1answer
12 views

Multiple problems when upgrading from 12.04 to 14.04

I initially experienced problems in attempting to upgrade from 14.04 to 14.10, and gave up attempting this. As a result of these failures, I had to return to factory settings, namely 12.04. Now, ...
0
votes
0answers
12 views

Taskbar missing after messing around

I have encountered a MAJOR problem, and that is that my taskbar has entirely vanished. Help? Can't post pictures because I don't have 10 reputation. Great.
1
vote
2answers
44 views

Command to Combine text 100 lines at a time

I have a file with 7000 lines. I need to combine the lines 100 at a time to reduce it to 70 lines i.e line 1 line 2 line 3 ... line 7000 becomes line 1 line 2 line 3 line 4 ... line 100 line 101 ...
0
votes
0answers
7 views

Ubuntu 12.04.2 fresh instalation

Im running a 5.3 GiB, AMD x64 A6-3420M APU with Radeon(tm) HD Graphics × 4, Gallium 0.4 on AMD SUMO, HDD 500Gb. The HDD was fully wiped with Install Ubuntu with a USB Ubuntu 14.04.2, and is ...
0
votes
0answers
11 views

ubuntu 12.04 falls back to login or no icons in gui

after hours of searching for solutions i am quite confused and frustrated now. None of the solutions here helped. This is what happend and what i did. Suddenly after days of offline the 12.04 ubuntu ...
0
votes
1answer
13 views

ARToolkit ubuntu 12.04

I am a new Ubuntu user and I'm having several problems trying to install ARToolKit 2.72.1 on Ubuntu 12.04 LTS (64 bit). I have followed several guides on the subject but haven't been able to get it ...
0
votes
1answer
10 views

ambiguous redirect

The error is: line 20: $1: ambiguous redirect what could be the problem #! /bin/bash while read line do string=$line array=(${string//,/ }) fileName=${array[0]}_"final_fitness.out" ...
0
votes
0answers
15 views

Disabling USB and DVD ROM in ubuntu

How to disable USB and DVDROM for a normal user in 14.04 but root should be allowed.
1
vote
1answer
38 views

How to install latest version of R on Ubuntu 12.04 LTS? [duplicate]

I am not able to download the latest R version on my Dell Vostro 14 3000 Series laptop running on Ubuntu 12.04 LTS. I typed in the standard commands on Terminal: sudo apt-get update sudo apt-get ...
0
votes
0answers
18 views

Can't install ubuntu 12.04 ltsp

I have this compaq presario computer with 2 gigs of ram. When I install from the advanced mode alternate installer, here are my choices: LTSP server, Ubuntu Desktop, grub as well as the base system. ...
-1
votes
0answers
18 views

how can i know the login details (user name and passwords) used on an email account(e.g. Gmail) [on hold]

how can i know the login details (user name and passwords) used on an email account(e.g. Gmail) entered through my notebook?
-1
votes
0answers
14 views

Cant boot USB Ubuntu 14.04

i installed Ubuntu 14 by USB, and when i boot USB my laptop dont do anything after. http://cdn.daynhauhoc.com/uploads/default/2801/1d0001f6fc1f99c7.JPG then it stuck in this screen. ...
0
votes
0answers
5 views

put sleep back on while in fullscreen videos

I have a question regarding activating sleep while in full screen videos on one of my computers. I looked around in system settings to put it on to no avail. Screensaver settings don't work either... ...
0
votes
0answers
27 views

Problem with wifi Ubuntu 12.04, Qualcomm Atheros QCA95665

I bought a Dell Inspiron 14 3442 laptop pre-installed with Ubuntu 12.04 LTS , however I am having issues with the WiFi connection. I receive the error message: Has closed the connection every time ...
0
votes
1answer
15 views

c/c++ program's are not debugging properly in code blocks 12.11 [on hold]

Respected sir/madam Codeblocks 12.11 currently running in Linux mint os is facing some problems while debugging the code by displaying "process returned with the status 225"..Plz help me to come with ...
0
votes
0answers
10 views

Is it possible to use empathy in new facebook video chat?

guys. Now, the facebook doesn't requires to install any plug-in to do video calls. So, with this new functionality, is it possible to use the video call with a facebook account in Empathy now?
0
votes
0answers
9 views

Does sleep mode limit CPU performance?

I have looked around but couldn't find a definite answer to whether or not sleep/suspend mode affects CPU performance in Ubuntu/Debian. Is there any impact on performance while running in ...
0
votes
1answer
31 views

Laptop keeps shutting down suddenly

I have Ubuntu 12 32 bits installed on my Emachines E728, and everytime I turn it in on and start using it it shuts down suddenly without a warning. I thought it's a heat problem but it seems like it's ...
0
votes
0answers
16 views

UBUNTU 12.0.4 LTS freezes on wireless occassionaly

This happens only when I connect to wifi, the system freezes and would not respond at all (ctrl+alt+f7 also does not work). Restarting the system is the only option. But the annoying thing is even if ...
0
votes
1answer
4 views

gridengine-qmon package missing context help

I upgraded to Precise and installed gridengine. The qmon GUI administrative tool still has the ancient X11 style interface from Sun Grid Engine, but when I click a Help button the "Context Help" popup ...
0
votes
0answers
10 views

The system is running in low graphics mode 12.04 LTS [duplicate]

I'm running an old CES mainboard w/ 1 gig ram and an AMD Athlon 1700 processor, WD 160 GB HD. I have the board drivers on disk. I'm completely new to Ubuntu and don't know what to do at this point. ...
0
votes
2answers
42 views

How to fix problematic Ubuntu ppa configuration?

When I do sudo apt-get update I get following errors: Err http://archive.ubuntu.com raring/main amd64 Packages 404 Not Found [IP: 91.189.91.23 ...
0
votes
1answer
26 views

How to prevent specific IP addresses from even connecting to my dedicated server [duplicate]

I've been using this site for Ubuntu-related help for quite some time now, since I own two dedicated servers that run Ubuntu 12.04, which I run gameservers on. Recently, I discovered the wonders of ...
1
vote
1answer
31 views

Ubuntu Network Error (Ubuntu 12.04) [on hold]

We run a 1000BaseT, full duplex network, however we use auto-negotiate to ensure that minimal errors occur. A few days ago, all Ubuntu servers started having an extremely slow upload (to the outside ...
1
vote
1answer
21 views

My keyboard shortcut binding does not work with my script

I was trying to bind a keyboard shortcut to my script. I tried binding it to keyboard shortcut from System Settings>Keyboard>Shortcuts>Add Shortcut I added new shortcut and as mentioned in ...
0
votes
0answers
7 views

could not write bytes broken pipe 12.04, after installing java and rebooting the system

I removed all java packages by following the instruction through the link How to uninstall java and installed java 8 through this link How to install java 8 and restarted the system after that time ...
0
votes
0answers
23 views

USB bootable windows iso with unetbootin494

as the title says, I'm trying to make a bootable win7 USB drive using unetbootin494, i downloaded the file, made it executable from properties, but when i double click nothing happens, i tried ...
1
vote
2answers
39 views

Ubuntu Latest Stable Version

I want to use Ubuntu as a Desktop.Currently i am using 14.04 as a desktop. What is the latest stable version which should i use that is free from Vulnerability so that we can move forward.
0
votes
1answer
18 views

What is virtuoso-nepomuk and how much harm could I do by uninstalling it?

I am trying to solve what might be an unsolvable broken system. Apparently virtuoso-nepomuk is tripping up something in the upgrade process and causing an unable to migrate to dependancy based boot ...
-1
votes
0answers
17 views

Setting Password Policy for Ubuntu 14.04 [duplicate]

How to set password policy in Ubuntu as below. Enforce password history Maximum password age Minimum password age Minimum password length Password must meet complexity requirements Store passwords ...
0
votes
0answers
11 views

PHP 5.2.6 make test failling

I need to setup a test environment that runs PHP 5.2.6 but I keep running into problems with the make test script. For testing purpose I am building this setup on a virtual machine running ...
0
votes
1answer
26 views

How to upgrade to the latest BlueZ version on Ubuntu 12.04 LTS?

Ubuntu 12.04 LTS is using BlueZ ver4.98 which is not the latest version. I would like to upgrade to the latest BlueZ version. How can this be done?
-1
votes
1answer
24 views

Install linux package in iso into ubuntu [duplicate]

here I want to ask, I am familiar with ubuntu, with unity, shortcuts, etc. I have learned about Kali linux, I have installed Kali linux in my PC but I am not familiar with the environment, I've had ...
0
votes
0answers
18 views

Getting ' Critical Low Memory ' error in ubuntu 12.04.

Though my system has enough RAM and ROM memory. It is showing me this error. Previously it was showing " Low memory " only. But now it is showing " Critical Low Memory ". Can anyone help me in ...
0
votes
0answers
17 views

cannot play my microphone in Debian [closed]

I can neither run my microphone in Debian, nor in any other OS inside virtual box. I decided to remove the alsa driver and install pulseaudio instead, but again, that did not solve the problem. how ...
0
votes
0answers
11 views

OpenVPN nameservers ignored by NetworkManager or whatever [closed]

I've followed a dozen suggestions from different websites and nothing helps. I'm using Elementary OS (based on Ubuntu 12.04). I use OpenVPN client to connect to an office network. The company I work ...
0
votes
0answers
9 views

help upgrading ubuntu 11.10 to 14.04 with intel atom d2550 processor [duplicate]

I was attempting to install ubuntu 14.04 on a pos with an intel atom d2550 processor the latest version that was successful was 11.10 i have done some research seems the the processor has some ...
0
votes
0answers
13 views

Ubuntu Computer does nothing when turning it on [duplicate]

One of my computers is having issues. When I turn it on, it literally does nothing. No indication of any activity. However, I can "Try Ubuntu" by booting from a disc. How can I troubleshoot what is ...
0
votes
1answer
12 views

Download a package and all it's dependency tree even if one is installed already or not in 12.04 LTS? [duplicate]

You see no matter a package or one of it's dependency is already installed I want all of them to be downloaded to my system, how to achieve that in ubuntu 12.04 LTS?
1
vote
1answer
19 views

error while installing ubuntu 14.10

i finished downloading the iso file to usb and im trying to install through usb but unable to do so the error is as follows: Asking for cache data failed unable to find a medium containing a live ...
0
votes
1answer
29 views

Installed new kernel on Ubuntu 12.04. How do I start it?

I installed linux-image-3.12.24-031224-generic on Ubuntu 12.04 but cannot find a way to start it. uname -r still says 3.2.0-80-generic. $ dpkg -l | grep linux-image ii ...
0
votes
0answers
9 views

How to Reassign/Replace a keyboard key with other one

My laptop's spacebar key is broken. You all know it's a very important key. So please tell me how do I reassign spacebar to any other key, e.g. capslock Please help, I am using Ubuntu 12.04 LTS i386 ...
0
votes
0answers
10 views

How to create a .deb for graphite with all dependency by using fpm?

I want to create .deb file to install Graphite and all its dependencies. I would like to use fmp to create .deb pakage. What are the step do I need to follow ?
0
votes
0answers
28 views

After changing Ubuntu 9 version to ubuntu 12.04.If i run my code i get core dumped segmentation fault

After upgrading from Ubuntu 9 to ubuntu 12.04, when I run my my shell (below) I get a: core dumped segmentation fault This code used to work before. My C-based applications still work. #! ...
0
votes
1answer
21 views

Ubuntu 12.04.5 64bit no /usr/lib64/?

I am currently trying to setup a domU on XEN Hypervisor based on some tutorials. My XEN installed on Ubuntu 12.04.5 Server x64 bit.. (Clean install) I can't find /usr/lib64 only /usr/lib and ...