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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Ubuntu 14.04 stuck in login after upgrade

After upgrading from 12.04 to 14.04, I'm not able to login anymore (guest account doesn't work too); there's a loop (it goes back to the login). What should I do? Thanks in advance and sorry for my ...
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New session when remoting Ubuntu 12.04 from mac

I'm using Microsoft Remote Desktop to remotely access to my desktop with Ubuntu 12.04 (with xrdp installed) from my MacBook Pro, using the same username as in the desktop. I can successfully log in ...
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touchpad isn't working

I'm using Ubuntu 12.04. And suddenly from 2 days touchpad isn't working when I log in with my account. It works well with the guest appearance. Mouse and touchpad settings are normal.How do I make it ...
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11 views

graphic and sound problem with SONY VAIO VGN-FS980 UBUNTU 14.04 LTS

First Ubuntu was a little slow with the graphics so I decided find for new drivers but after installing the intel graphic installer, the graphics and the computer in general are faster but the cursor ...
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New Ubuntu 14.04 install - can't connect to wifi

There are dozens of wifi problem here on askubuntu; I've tried the answers to several of them and nothing worked. The symptom is that my Wifi network does appear in the network menu, but when I try ...
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8 views

How do I install GNOME CD Master?

I used to use GNOME CD Master on 10.04 to split live audio tracks using 'track markers'. It did not split the main file, it could simply burn one long audio file as multiple tracks. It was a very ...
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15 views

help with uninstalling ubuntu 14.04 and reinstalling 12.04.03 lts

okay so i installed ubuntu 14.04 way back but wanted to uninstall it because battery drains very quickly.so i decided to reinstall the old 12.04.03 lts.so i formatted the the drive on which ubuntu was ...
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30 views

Upgrade from 12.04.05 to 14.04 (LTS) via terminal doesn't allow me to log in

I am a newbie user regarding Linux OS so please forgive me if I cannot explain some things correctly. I will try though to explain you in details what I tried to do and and what was the result. By ...
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1answer
16 views

How can I use Dropbox as a backup without syncing the backup to my harddrive?

I use Ubuntu 12.04 64 bit. I read this link: "How can I use DropBox as a simple backup?" which suggests to backup using deja-dup to the Dropbox folder. However, if I would do this, the backups will ...
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10 views

Sticky Notes in Ubuntu as of windows [duplicate]

Hi I need to know about a sticky notes application in ubuntu similar to that of windows which pops up every time I boot my system as if a start up application.
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cannot install ubuntu software center [duplicate]

I removed my Ubuntu software center. but I am not able to install it again. acer@acer-Aspire-E1-530:~$ sudo apt-get install synaptic software-center [sudo] password for acer: Reading package ...
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1answer
29 views

Ubuntu 12.04 no wlan0 interface

I installed Ubuntu 12.04 on an Acer e5-571-31KM. Dmesg and lspci output indicate a wireless Network adapter was found, but according to ifconfig there is no wlan0 interface. Unfortunately I have no ...
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1answer
13 views

ubuntu 12.04 lts netbook installation throught usb

I want to install ubuntu 12.04 lts on my asus disney netbook and i can not launch wubi.exe from my usb drive when the computer starts up. I have checked BIOS settings and it is all ok because I have ...
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0answers
9 views

Gnome-session-fall-back unity not working

I installed Ubuntu 12.04 in my old PC.But when I tried to change unity to gnome-session-fall-back,it is not working.When I login with gnome-session-fall-back unity I am only getting default Ubuntu ...
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1answer
25 views

Gray desktop after updating XFCE on Xubuntu

Lately, I've been trying to run multiple monitors on Xubuntu without having them cloned. On the internet, I found some instructions to do that which basically required me to add a PPA in order to ...
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0answers
20 views

dhcpd server not listening to second interface

I have a 12.04 server which is happily responding to dhcp requests on eth1 (172.16.1.1). Now I have set-up a second interface on eth2 (172.16.2.1). I can ping this interface all right and even ...
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0answers
12 views

Completely uninstall Nodejs, npm and node_modules

so my Node and npm settings are currently messed up beyond repair( or so I think). What I would like to do is to completely remove all of it and start from scratch. What I have done till now can be ...
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12 views

Ubuntu 12.04.5 slow keyboard

I installed Ubuntu 12.04.5 on my Asus laptop and I have a problem with my keyboard which is randomly slow and repeat some characters. So I looked for a solution, I found that I have to disable "Slow ...
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1answer
21 views

install opencv-2.4 in beagleboard zm rev c (12.04)

I'm running ubuntu-12.04-preinstalled-desktop-armhf+omap.img in my BBxm. I want to install opencv-2.4 for a software dependency, but apt-get install only gives me opencv-2.3. I want to avoid manual ...
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26 views

Ubuntu 12.04 Sudo apt-get update failing to fetch and unable to connect [on hold]

Failed to fetch http://extras.ubuntu.com/ubuntu/dists/precise/main/binary-i386/Packages Unable to connect to 192.168.1.5:6588: W: Failed to fetch ...
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1answer
15 views

High CPU usage in the processes related to postgres in ubuntu 12.04

My Ubuntu server 12.04 hangs quite oftenly (say once in a day), after hard reboot it starts running normally. The server is Intel Xeon having 2 CPUs with 8GB RAM.There is high CPU usage in the ...
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1answer
17 views

Ubuntu 14.04LTS RDP client supporting Hebrew

I'm looking for an RDP client that will support Hebrew (which I added to my system already) Could I use the solution I found here for an Ubuntu server?
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1answer
21 views

I can't print pdf & text files

I can't print PDF & text files. I am using ubuntu 12.04. I am able print excel docs & HTML documents. Also Print test page is working. Please help me to resolve the issue.
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11 views

FCOE Interface Connectivity Issue

We are trying to initialize FCOE interface for EMC SAN (vnx7600) Connectivity using open FCOE utilis on Ubuntu 12.04.5 LTS with Broadcom (brcm 10gbe 4p 57840s-kbndc) network card. But we are able to ...
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Radeon HD 7770 Ubuntu 12.04 installation problem

I try to install ubuntu 12.04.5 but it always says "The system is running in low-graphic mode" after I clicked OK it says "Stand by one minute while the display restarts" but after waiting 5 minutes ...
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17 views

Ubuntu 12.04 in login loop as lightdm-session says upstart not found

I tried to install a package systemd (this replaces upstart in Utopic 14.10 and up). See my yesterday question How to Re Generate All Gnome Schemas for Ubuntu 12.04. The result was that it didn't ...
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12 views

Can't read permanent MAC address and adapter has no association?

I'm using a Rosewill RNX-n180ube USB wireless adapter on Ubuntu 12.04 64x. I've found two things to be strange that I want to fix. To start, when I put the connection down to use mac changer I get ...
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1answer
16 views

error opening display after lightdm stop

I'm trying to install CUDA and following these instructions. Eventually I get to a point where I need to run: sudo service lightdm stop At that point the GUI shuts down but instead of a terminal ...
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2answers
32 views

Will “kill -SIGTERM” stop “tail -f”?

Just as the title says, Google gives me nothing and I can't test it on this server. The command as is follows: tail -f <file> | fgrep --line-buffered "string" | sed -u 's/stuff//g' >> ...
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1answer
15 views

Check which SSH key was used to login

So stupidly enough in our development team every individual SSH Key is used to access the root user directly. When Checking the auth.log i can find this Dec 18 09:45:04 webserver sshd[12377]: ...
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2answers
23 views

Ubuntu not booting

I have a new Dell Inspiron 3542 laptop with pre-installed Ubuntu 12.04. Recently I tried to upgrade to ubuntu 14.04 LTS. After all the download was done online, Update Manager was Installing and ...
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Ubuntu 12.04 Unity interface becomes invisible when trying to modify color or highlighting of a text in LibreOffice

I'm experiencing a weird problem, and I'm not sure whether it is about Libreoffice or Unity shell itself or both. While working in Writer (version 4.2.8.2, but I experienced the same in 3.5), I try ...
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12.04 LTS: Monodevelop having nothing but bugs? (Unity, ARM, Crouton)

Anything related to Mono/MonoDevelop refused to install on my desktop before. So, I decided to reinstall Ubuntu. The first thing I did when I opened it was go to UXTerm and type sudo apt-get install ...
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1answer
15 views

How to Re Generate All Gnome Schemas for Ubuntu 12.04

To compile a package I went on installing systemd package from Utopic 14.10 with all its dependencies on my [Modified] Ubuntu 12.04. As it's not existing in Systems prior to Trusty 14.04. Everything ...
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28 views

Running 3 monitors on Ubuntu 12.04

I would like to run 3 monitors on Ubuntu 12.04. I have NVIDIA Quadro 5000 which is able to support 2 monitors. I only have an additional PCI slot so my option are limited for a second graphics card. I ...
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1answer
29 views

How to use rsyslog?

I've been scouring forums for a few hours and cannot find a concrete explanation on how to use rsyslog. I really just need the basics. I have a log file logFile.log and I want to forward the logs to ...
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unable to install octave in 12.04 [on hold]

Some packages could not be installed. This may mean that you have Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable ...
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43 views
+50

Screen repeatedly goes black for a few seconds after suspend

When I suspend my laptop and then resume, the screen repeatedly goes black for a few seconds and then returns to normal. This happens randomly about once a minute without my behaviour having any ...
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1answer
13 views

Getting error after ubuntu 12.04 update

I was using 'ubuntu 12.04'. Windows7 is already installed in the system. I am getting the following error when I try to update Ubuntu (sudo get-apt update) GNU GRUB version ...
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9 views

Write udev rules for serial device

I have one concern regarding device name assign by kernel like /dev/sda* , /dev/sdb* ... etc but i would like to write rules for assign name to new pattern like "/dev/sc**"(starting with modified ...
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1answer
18 views

getting different version of java in ubuntu

I am getting different version of java when i run java -version and javac -version. for java-version iam getting java -version java version "1.7.0_65" OpenJDK Runtime Environment (IcedTea 2.5.3) ...
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18 views

LinConnect failure to install

When I ran the commands from github (as per http://www.techrepublic.com/article/get-android-notifications-on-your-linux-desktop/ ) on Lubuntu 12.04.1, I got this before the install stopped: ...
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Calibre(e book management) problem in Ubuntu 12.04 (Elementary OS Luna) [migrated]

I am a newbie here and I just started using Elementary OS Luna, which uses Ubuntu 12.04 packages. I have had calibre installed for some time now and it has always worked fine. Right now i tried to ...
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13 views

Das Keyboard 4 keyboard professional

Has anyone encountered any problems / issues with the new Das Keyboard 4 Professional keyboard? I 've read about some software bugs with the USB 3.0 hub and the NKRO feature causing blue screens and I ...
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1answer
17 views

Neither brasero or Xfburn recognizes the blank disc

ever since I updated my ubuntu 12.04 [NOT upgrade], my linux install can no longer burn discs. I can't seem to find a thread on how to fix this. Neither brasero or Xfburn recognizes the blank disc, ...
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24 views

Ubuntu Desktop perform better in VMWare

With my computer I outperform any ubuntu installation with virual machines on Windows (using vmware player). If I do a dedicated installation of Ubuntu 12/13/14 all java applications runs very slow ...
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1answer
33 views

How to get in desktop mode from terminal in ubuntu 12.04 lts [on hold]

I am new in ubuntu, Our ubuntu server is running 12.04.2 LTS and i would like to back up the system. But the one i see in youtube and google is different from what i saw. after logging in username ...
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1answer
127 views

How do I regain access to my encrypted home directory after changing my password?

On 12.04 LTS x64, I changed my user password via the User Accnts tool. After that I was unable to login again with my new password since my home directory is encrypted and the above-described bug does ...
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1answer
16 views

Repairing from 12.04 live USB failed. Suggestions?

I wanted to repair my system using live USB. In 12.04 Installation, there is no keep my files and repair the system only option (Which was introduced in 12.10). I went with the normal steps. The ...
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how to avoid loosing kernel changes throgh updates?

I'v modified kernel to enable SPIDEV on Pandaboard Ubuntu. Unfortunately I am loosing this devices every kernel update. Is there any posibility to avoid it, so I do not need another day to compile the ...