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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Enable WiFi on Ubuntu 12.04 Lenovo Thinkpad E440

I have Lenovo Thinkpad E440. Just now I installed Ubuntu 12.04 LTS. Problem is Wifi is not enabled on this Ubuntu, only wired internet is enabled. So please help me how to enable Wifi on this ...
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1answer
2k views

How to disable xscreensaver lock on suspend?

I have recently installed Ubuntu 12.04 LTS and have installed xscreensaver. As I am the only user on this computer and I am only using the computer for music, movies, and some web browsing I have no ...
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3answers
208 views

Problem connecting to some websites

I've some problem connecting to certain websites, using Ubuntu 12.04 in Dual Boot Windows 7. Websites like https://github.com/, https://developer.paypal.com/ and https://www.facebook.com/ keeps on ...
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2answers
176 views

Restricting internet access of some client systems of LAN to a few websites using ubuntu gateway

How to limit internet access of most systems in my LAN to a few websites and block all the other websites? Also want to bypass that restrictions for some systems. All systems have static IP address ...
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1answer
15 views

How do I add to “system software sources”?

While trying to install fluendo on my Acer C720 running 12.04, I was told to add this to my system software sources: deb ...
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5answers
6k views

dual booting Ubuntu 12.04 and windows 7 (partitioning scheme)

I would like to ask for help on dual booting because it's my first time to try dual booting and a novice on Ubuntu or any Linux distribution. I have 2 partitions on my hard disk: Windows 7 C:\ ...
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0answers
15 views

Installing Ubuntu 14.04.2 LTS Issues

I am trying to instal Ubuntu 14.04.2 LTS from a USB however I am having issues. Hardware; Dell Optiplex 160GB WD HD 6GB RAM Intel core 2 duo 64 bit I had Ubuntu 12.0.4 installed until ...
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4 views

How to connect USB touch screen with Ubuntu

I want to connect USB touch screen with ubuntu 12.04 desktop. Is there any device which can be used easily in ubuntu. The word Easaily can be that it can be used without any additional device driver ...
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1answer
19 views

custom-keybindings not found

When I tried to list the available custom keybindings using gsettings command gsettings get org.gnome.settings-daemon.plugins.media-keys custom-keybindings I got the error message saying, No such ...
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10 views

Catastrophic GUI breakdown and feezing

I'm experiencing catastrophic GUI breakdowns and freezing with my Ubuntu machine. It also randomly freezes but the time it takes from booting to freezing is different everytime. Observation so far ...
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2answers
4k views

Ubuntu 12.04 LTS drains my Samsung Series 9 900X3C ultrabook's battery extremely fast. Is there anything I can do to fix that?

The title basically says it all. My Samsung Series 9 900X3C ultrabook's battery is in the deep red around barely three hours after disconnecting it from the power - and during most of that time the ...
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1answer
531 views

Uninstall Ubuntu OS-Uninstaller

I recently installed Ubuntu 12.04 (I had the .iso already and couldnt be bothered downloading 14.04) alongside a broken Windows 7. GRUB shows Windows 7 and Ubuntu as normal Before we go any further, ...
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1answer
23 views

Unknown file system, unable to boot from live cd

Facts are, I used to have a dual boot linux and windows 7. Tried to make grub handle bootloader, messed it up, nothing works now. I get grub rescue right from the off. No way I can boot into any ...
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4answers
59k views

How to create Windows XP LiveUSB using Ubuntu to replace it

I am using an Acer Aspire One netbook with no CD-disk drive, and would like to uninstall Ubuntu 12.04 LTS and install Windows XP in its place. The problem here is that I can't seem to find a program ...
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1answer
21 views

How to access sda4 device/directory?

Our camera DVR is not recording anymore. The disk is full and the vendor has not been helpful in freeing up space. I am trying to figure out why the primary disk is full. I've tried accessing it ...
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2answers
3k views

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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0answers
9 views

ELmer 7 installation in Ubuntu 12.04

I've been working with Elmer Multi-physics for a little while in Ubuntu 12.04. I've installed through the software center. I thought it would be neat to get a newer version so I followed the ...
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1answer
14 views

Error for wireless request “Set Frequency” (8B04) :

I have setup a monitoring interface using: sudo airmon-ng start wlan0 channel 11 sudo iwconfig wlan0 IEEE 802.11bgn ESSID:"" Mode:Managed Frequency:2.437 GHz Access Point: ...
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2answers
11k views

How do I install TeamViewer Host?

How do I install TeamViewer 7 Host on Ubuntu Server 12.04?
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1answer
14 views

How to hide administrator account or root in Login screen?

I used Ubuntu 12.04 and I want to only user account appear on the Login screen without guest and administrator account. My administrator account cannot view to everybody when their Login. ...
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1answer
5k views

How to add Ubuntu to the Windows 8 Boot Menu with a GPT Harddrive

I would like to know how to add Ubuntu to the Windows 8 Boot Menu using bcdedit. I have UEFI with secure boot enabled and both OS's can be booted from the UEFI boot menu by pressing F9. I also have ...
2
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2answers
6k views

No boot option after installing Ubuntu 12.04 LTS on Acer Aspire 4736z with Live CD

I am facing a problem. After installing Ubuntu 12.04 LTS using Live CD, at the reboot there is no boot option to choose the OS. I directly get logged into my Windows 7. Before that i was having an ...
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1answer
1k views

How do I crop (time not picture) an MP4 video file

I'll be the first to admit I am a long way from an expert in non linear video encoding techniques, but I am looking for an app to help me chop bits off start and end of an mp4 file efficiently and ...
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1answer
3k views

dns configuration problem bind9

Following is my bind9 configuration the domain I want to configure is home.lan it is home network /etc/bind/named.conf.local is following zone "home.lan" IN { type master; file ...
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2answers
22 views

Unable to find Remote Desktop icon in System->Preferences

I've been using Ubuntu 12.04 for around 8 months, but I have a question that probably a "newbie" should be asking. I'm unable to find the "remote desktop" icon that is generally accessible from ...
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2answers
15 views

“No root system defined” while installing ubuntu on Virtual box

i continuously get the error "No root System defined" in the last installation step and it asks for partitioning but under the condition of erasing everything on the disk !!!
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Gray dekstop after update XFCE on Xubuntu 12.04

After upgrade XFCE my desktop is totally grey and icons dissapeared. I found a solution: sudo apt-get install xfdesktop4 But : The following packages have unmet dependencies: xfdesktop4 : Depends: ...
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1answer
4k views

Ubuntu 12.04 & Mac Os X - GRUB Rescue prompt SET commands made permanent?

I recently re-installed my Mac OS X partition. This somehow messed up my entire partition scheme it seems. First I got dropped to the Grub rescue> prompt when trying to boot Ubuntu. I had never ...
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0answers
15 views

Cannot read USB device in Ubuntu 12.04

My Flash drive cannot read (without light) to my computer.
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2answers
4k views

Brightness options in Ubuntu 12.04 desktop missing

I am unable to change the brightness of my desktop screen using this path. System settings{top right corner of the screen)>Under Personal Brightness & lock.No option to change brightness is ...
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1answer
35 views

Unable to Install Ubuntu alongside Windows 7 (Legacy BIOS)

I am trying to install Ubuntu 12 / 14.04 (x86 & x64) alongside Windows 7. I have a bootable USB stick and when I try to install Ubuntu there is no alongside Window` option neither the Windows ...
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3answers
5k 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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4answers
6k views

Can not start webhttrack

I am trying to start my webhttrack on ubuntu 12.04 precise pangolin but all i get is the opening screen. When i press any button on the page it gives me the following errors: Oops! Google Chrome ...
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22 views

Is there an ftp management tool that is not based on PHP?

I am looking for an ftp tool GUI that makes it easier for some low-tech users to add/delete FTP accounts restricted to certain folders. Currently I am doing this by hand in my vsftpd.conf but I am ...
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2answers
2k views

Ubuntu doesn't recognize my Printer anymore

I'm running Ubuntu 12.04 and I have a HP Officejet Pro 8000 (network) Printer. I've never experienced any problems with it until yesterday. The day before yesterday I was printing something at it ...
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10 views

How to setup jenkins in a ubuntu 12.04 machine?

I have a machine in production which is running Ubuntu 12.04. I need to setup Jenkins on it. I was trying to follow this tutorial - ...
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1answer
33 views

How should I give access to a PHP script on a local host-only server?

I have a 14.02 LTS client and server VM connected using host-only and DHCP. Connectivity between them has been achieved and I can ping each machine from the other. I have LAMP installed and I'm ...
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1answer
4k views

Is it possible to use Ubuntu as speaker while playing music from a bluetooth-linked smartphone?

Is there a way to use the notebook as speaker for my smartphone? I linked them via Bluetooth and saw that the smartphone can be used as an input-Device for music and sound. You can see it here: My ...
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1answer
4k views

Getting openvpn working ubuntu

I am trying to set up a VPN over a few VMS that I have. I created an openvpn server on ubuntu 10.04 and am trying to configure the client using 12.04. I followed these instructions here ...
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2answers
134 views

hplip documents held but never print

I have hplip-3.14.4 with an HP Photosmart b210a and recently it has stopped printing properly. The issue is that it tries to print from the photo tray (which we don't use). I've tried setting this ...
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2answers
4k views

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
24 views

No ethernet connection only wifi

I'm providing some of the terminal tests I done for a Dell latitude D520 with Ubuntu 12.04. Please any help will be appreciated. PCI: lspci 02:00.0 Ethernet controller: Broadcom Corporation ...
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1answer
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25 views

What is the correct address for precise/12.04 restricted, multiverse and universe ppa?

I am running Ubuntu 12.04. When I run sudo apt-get update now I get the following errors at the end: W: Failed to fetch ...
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2answers
6k views

Ubuntu Apache2 won't start

* Starting web server apache2 apache2: Syntax error on line 214 of /etc/apache2/apache2.conf: Syntax error on line 3 of /etc/apache2/httpd.conf: Expected </> but saw </Directory> Action ...
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4answers
6k views

Wireless Network Found, can't connect, repeated requests for authentication

After trawling through the internet, on forums, support websites, and through dozens upon dozens of answered questions on this site, I've not found a solution to what seems like a fairly regular ...
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1answer
208 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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20 views

Host website, share files, ubuntu 12.04

I am just getting into the whole programming/networking "thing", so after making my first <HTML doc!> :) I want to put it online of course! So should I take the AiCloud down and make a static ...
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1answer
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Problems uninstalling NetBeans 7.3.1 on Ubuntu 12.04

I am having problems trying to uninstall NetBeans 7.3.1 on Ubuntu 12.04. When I run the uninstaller, it shows the message: cannot create local directory: /root/.nbi Someone knows how to solve ...
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1answer
5k views

How to download only recent mails in Thunderbird?

I have an account at Hotmail and I have lots of mails there. (more than 10000) I don't want Thunderbird to download them all, also because I have really slow connection. Is there a way to make ...