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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Fn keys for Brightness not working on Toshiba Satellite L755

I am running Ubuntu 12.04 and I love it! The only problem is the keys for my brightness, F6 and F7, does not work when I am on battery power or AC power. It randomly works after I am idle for a while ...
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45 views

Unable to download video from youku.com using youtube-dl [duplicate]

When I try to download videos from youku.com using youtube-dl I get the following message [youku] XODE0MzQ4OTg0: Downloading JSON metadata 1 ERROR: Unable to download JSON metadata: [Errno 104] ...
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2answers
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Ubuntu 12.04 failed to reboot after unsuccessful update done on 28/8/2013

I was updating kernel, mesa, firefox, thunderbird, python and some other packages on 28/8/2013. My internet connection terminated while updates were ongoing. So Laptop did not started in next reboot. ...
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2answers
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How can I get my built-in microphone to work on a Lenovo G770?

I am dual booting Ubuntu 12.04 on a Lenovo G770. The internal mic works fine in Windows 7. The mic is recognized and unmuted, but it just isn't detecting any sound. I tried messing around with ...
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1answer
27 views

Round cube login connection to storage server failed

I have multiple domains working on my mail server, and all are working normally, I configured new mail domain "newdomain.ae" normally on mysql mail db, created new user, inbox was created on server, ...
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1answer
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How can I get my wifi to work on my Dell 3521 laptop?

I have installed ubuntu 12.04 alongside windows 8 in my DELL 3521 laptop and everything is working fine except the wi-fi in ubuntu. In win 8 wifi is working well but when i start ubuntu it does not ...
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15 views

USB key board & USB mouse idle time in linux

How to get the Idle time in Linux(ex: ubuntu) when using USB keyboard and USB mouse, i don't want to use 'XOpenDisplay' because it uses 'X11/Xlib.h' file which is not there as a default when we ...
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1answer
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How to install hp scanjet 200 in Ubuntu 12.04?

Unable to scan with hp scan-jet 200. When I type lsusb command in terminal it shows the scanner details. I opened the simple scan which displays no scanners found, and x sane image scanners also ...
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3answers
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Can't load GRUB all of a sudden (UEFI problem)

So, the last time I used my Ubuntu installation was last night. Today, as I booted it up, it told me that booting grubx64.efi is not allowed. Easy enough. I know how to re-enable it from my BIOS. ...
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How do I connect to the wifi in Ubuntu within my Virtual Machine?

I have a virtual machine installed on my Windows 8.1 laptop with Ubuntu installed on it, but when I open the Network menu it doesn't show any wireless networks. How do I connect Ubuntu in my virtual ...
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3answers
155 views

Removing older kernels takes forever

I have a Ubuntu 12.04 64-bit installation sided with a Windows 7 64-bit in dual-boot configuration. I was trying to remove older kernels packages to free some space, but the process is taking too ...
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2answers
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Static IP Address on Ubuntu 12.04 Virtual Machine

I've setup a VM running Ubuntu 12.04 specifically for local web development and am having some problems ensuring it has a static IP address. A static IP address is important as I'm using the IP ...
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3answers
14k views

How to install network-manager without internet access?

I have been trying to install some kind of network indicator to show my current bandwidth usage on the panel on top of the screen so I decided to install ...
3
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1answer
949 views

Running gradlew produces “: No such file or directory”

We are two developers running Vagrant VMs with Ubuntu 12.04 installed. Running ./gradlew to execute our build script works fine for me, but when he runs the same command he gets the error: : No such ...
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2answers
6k views

Unable to locate package libglut3-dev

I was not able to download the software libglut3-dev in my Ubuntu 12.04.2 I was behind a proxy. I was getting the following error. sudo apt-get install libxi-dev libxmu-dev libglut3-dev [sudo] ...
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3answers
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how do I config a Foscam FI9821W IP camera on Firefox

I'm running Ubuntu 12.04 and Firefox. I've got a Foscam FI9821W IP camera and I'm trying to get live video on Firefox. Then I want to add to zoneminder. I opened the IPCam Client page and downloaded ...
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4answers
4k views

ZTE MF180 - BSNL - 3G Datacard USB Modem not working in Ubuntu 12.04 LTS

I'm entirely new to Ubuntu and hence do not have much knowledge about it... I recently installed Ubuntu 12.04 LTS version alongside with Windows 7 since i wanted dual booting option. Here's my ...
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Ubuntu 12.04 ODBC connection to MySQL

I have task - write CEL events into mysql. I wrote next setting: odbcinst.ini => [MySQL] Description = ODBC for MySQL Driver = /usr/lib/i386-linux-gnu/odbc/libmyodbc.so Setup = ...
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18 views

How to install A Ubuntu Terminal Server to run Windows 7 Clients

I am looking into installing a Linux Terminal Server which could use to boot up thin clients into windows 7. Is it possible? If it is how do I go by doing that? Thank you for your valuable inputs. ...
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1answer
2k views

How to Upgrade Kernel Version?

My question is how to upgrade kernel versions for Ubuntu 12.04? My computer specifications are: Ubuntu 12.04 Kernel Version Linux 3.2.0-40-generic AMD Processor 64 bit processor. I have ...
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BUG: unable to handle kernel paging request at

I am trying to write small char driver that just prints buffer in dmesg Except printing buffer in kernel level, everything is working fine. But while printing the buffer, application program is ...
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1answer
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PlayOnLinux Unable to find 32bit opengl libraries Dual ATI Videocards

Im curently running Ubuntu 12.04 LTS 64Bit So, i installed league of legends fine the first time with the opensource ATI Drivers provided by ubuntu itself with no issues at all, but it runs so slow ...
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Failed to download repository information, check your internet connection

though i have connected to internet, when tried to update manager, it is showing this message. due to this, there is an error displaying on desktop at top right corner .. can any one help me to ...
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1answer
18 views

copy local file to remote server in ubuntu terminal

Jeez, where's Windows drag and drop when you need it. How can I achieve this simple task? In Ubuntu Terminal I have the prompt: metheuser@metheuser-HP-Pavilion-g6:~$ I make it: ...
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4answers
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Why doesn't the bootable USB show up in the BIOS?

I followed all the instructions on the Ubuntu website as to how to install Ubuntu using a bootable USB. I got the linux pendrive thing, formatted the USB, and have nothing on it besides what was put ...
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1answer
815 views

Battery indicator doesn't change its status (but after reboot)

The problem is the same as here: The icon does not change when the power cord is plugged in or unplugged (the icon remains a battery if that was the power source on boot but won't change if ...
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3answers
6k views

Fans running very fast on MacBook Pro 8.1

I installed Ubuntu 12.04 on Macbook Pro 8.1 and one of the first things I noticed was that the fans were starting to spin very fast every few minutes for 10-30 sec and then going back to normal. That ...
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3answers
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MySQL can't open files after updating server: errno: 24

Ubuntu: 12.04 LTS (Linux mysql02 3.2.0-40-generic #64-Ubuntu SMP Mon Mar 25 21:22:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux) MySQL: Ubuntu distro 5.5.31 Apparmor: REMOVED! Server has been running ...
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3answers
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Cannot boot from USB - HP Envy

I'm having a little bit of a problem right now... I am trying to install Ubuntu, whether it be the 12.04LTS or 13.10, but I can't seem to get my PC to even run into my bootable USB. I am trying to ...
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1answer
13 views

How to uninstall samba on ubuntu 12.04?

I was enabling file sharing using this question How to transfer files between Ubuntu and Windows? and something went wrong so I couldn't click on dialog buttons to install some service after samba. ...
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How to install new LINUX version along with LINUX FIRMWARES in Ubuntu 12.04? [duplicate]

I am facing a peculiar position after reinstalling Ubuntu 12.04 LTS. I have a separate / and /home folder. After running the command uname -r, i see that the linux running on my laptop has version ...
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6answers
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Ubuntu 12.04 LTS on pendrive

I've got a problem with installing Ubuntu on Pendrive. Steps I made: Downloaded ISO from Ubuntu site. Burn it on DVD. Run PC from the DVD (pendrive is plugged in). Followed instruction on the ...
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5answers
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Video playing is slow on 12.04

I started using Ubuntu a very short time ago, and it was working perfectly! I upgraded to 12.04 yesterday, and today I realize that everything is running slow. For example, video streaming online, ...
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2answers
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Why do I get disk I/O errors booting the 3.2 kernel on a xen vps server?

I have a xen vps, which I just upgraded to the new LTS 12 Precise Pangolin. However, I see this error on booting: [ 12.848076] end_request: I/O error, dev xvda, sector 12841 [ 12.848093] ...
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How do I get GPAC v0.5.0 on 12.04 where v0.4.6 is in the repositories?

I am currently working on a web application which requires streaming video, I am using an EC2 Instance on AWS with Ubuntu 12.04 LTS running on it. As I need to transcode video i am wishing to install ...
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Issues lxqt on Ubuntu 12.04

I wish to install lxqt desktop nvironment. I added PPA: deb http://ppa.launchpad.net/lubuntu-dev/lubuntu-daily/ubuntu precise main deb-src http://ppa.launchpad.net/lubuntu-dev/lubuntu-daily/ubuntu ...
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2answers
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How to Stop DHCP Server

I have installed a DHCP Server. Now I need to stop the dhcp server, when I issue the command: sudo service isc-dhcp-server stop I get stop: Unknown instance. I confirm the DHCP service is running. ...
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Epson TM-T88IV not printing from Firefox/Chrome — Ubu 12.04

I'm using a procedure successfully used with Debian 6 and Ubuntu 10.04 - 11.04. Get drivers from Epson POS Drivers apt-get install cups libusb-1.0-0 libusb-1.0-0-dev unzip TM\ BA\ Series\ Thermal\ ...
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1answer
65 views

PPAs cannot be added on Ubuntu 12.04

Whenever I try to do something like sudo add-apt-repository ... It gives me the following error message: File "/usr/bin/add-apt-repository", line 37 print _("The %s named '%s' has no PPA named ...
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Boot Repair - 'Close all package managers…' Dual Boot Installation

After almost a week, I've just about managed to install Ubuntu 12.04.3 LTS alongside Windows 8 on a Dell XPS 14 Ultrabook. I have created a partition in Windows to store Ubuntu, rebooted from Windows ...
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1answer
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How to reset display settings in XFCE \ Ubuntu 12.04 and also flgrx drivers

I recently upgraded to Ubuntu 12.04 and since I hate unity I installed the Xubuntu package and am using XFCE instead. Since I have a Radeon HD5770 I also installed the fglrx drivers. This all went ...
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TILP 1.13 can't connect to TI-84 Plus Silver Edition

I've already looked at this question, which helped, but not completely. Here's the result of lsusb Bus 003 Device 027: ID 0451:e008 Texas Instruments, Inc. TI-84 Plus Silver Calculator Device ...
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Can't logout (system is running in low graphics mode)

I have I big problem: All started with the installation and then uninstallation of KDE desktop einv. on my ubuntu 12.04. Now If you would logout, I get the famous screen with system is running in low ...
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722 views

My xdiagnose does not work?

When I click on the application, the application does not run or is not visible. How can I get this to work?
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1answer
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How do install Ubuntu over Windows7?

I have successfully installed Ubuntu 12.04 but I didn't see the windows outlined by the numbered installation walk-through: http://www.ubuntu.com/download/desktop/install-desktop-long-term-support I ...
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4answers
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Post installing comodo issues

I have installed comodo antivirus for my Ubuntu 12.04, even if I'm a newbie I managed to enter finalize the installation, you know when you have to type sudo /opt/COMODO/post_setup.sh, went through ...
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Caps lock makes volume go crazy on ubuntu 12.04

I have a peculiar problem. Whenever I press the caps lock button on my ubuntu 12.04 laptop, my volume goes up and down uncontrollably. It stops after a couple of seconds, but it is highly annoying ...
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1answer
66 views

Unable to build Spark 1.5.2 on Ubuntu 14.04

I am newbie to Linux, Ubuntu, spark. Trying to install local Spark 1.5.2 on Ubuntu 14.04 LTS memory 19.3GiB Disk 7.5GB 64bit. I get error during the build of Spark: [Error] Could not create ...
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2answers
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Reinstalling Ubuntu without formatting partition - what folders are deleted?

When re-installing Ubuntu on a partition where an existing Ubuntu installation already exists, and not choosing to format the partition, the installer shows a warning message before it begins ...
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When I download the Software Center in Ubuntu 12.04 Unity on my Chrome book, I can't do anything

When I install the Software Center it shows me a window and when I click "ok" it doesn't work. What can I do? I'm using Ubuntu 12.04. I have tried using sudo apt-get install software-center but it ...