Posts Tagged ‘ubuntu 12.04’
Add login sound in Ubuntu 12.04
By default, the sound that plays when an account logs in is disabled on Ubuntu 12.04. To turn it on again, you need to add the command to startup-applications again. To do so, click on the cog-wheel icon on the top right corner of the screen and click on Startup Applications…
On the appearing window, click on Add. Enter a descriptive name for the entry and the following into the command line:
/usr/bin/canberra-gtk-play –id=”desktop-login”
The term in quotation marks, desktop-login, is the name of the sound that is played – you can change that to anything you want (it has to be in the .ogg format and positioned in /usr/share/sounds/ubuntu/stereo).
Change selection color in Ubuntu 12.04 themes (Linux)
The color of selection elements in themes used by Ubuntu 12.04 is determined by a single value and is therefore the same for all of them: highlightened buttons, files, menu items as well as the selection box that you get by holding and dragging your mouse.
You can set this value in the settings.ini of each theme. The settings file of the Ambiance theme for example is located in /usr/share/themes/Ambiance/gtk-3.0
Before you edit the file, create a backup copy of it in case you want to reset the theme to its original state. Just copy the file somewhere else to do that. Afterwards, open the original file as administrator. This is easily done using the terminal:
sudo gedit /usr/share/themes/Ambiance/gtk-3.0/settings.ini
The value that determines selection color is nselected_bg_color – it is formated as hexadecimal value (#000000). You can now use a graphic editor to find out the hexadecimal value of the color you want to use – if you wanted to use red for example, you would have the value #FF0000.
Afterwards save the file and log out of your current session. After the next login, all elements of selection should now have the color of your choice:
Install Mate desktop on Ubuntu 12.04 (Precise Pangolin)
The Mate desktop was modeled after the discontinued Gnome 2 desktop because many people didn’t like the direction the Gnome and Unity desktops headed towards. To install Mate on Ubuntu 12.04 (Precise Pangolin), open a terminal and enter following commands one after another:
sudo add-apt-repository “deb http://packages.mate-desktop.org/repo/ubuntu precise main”
sudo apt-get update
sudo apt-get install mate-archive-keyring
sudo apt-get update
sudo apt-get install mate-core
sudo apt-get install mate-desktop-environment
Afterwards, log out of your current desktop session and select MATE as desktop environment in your login menu. It will be used the next time you log in.
Install Gimp 2.8 on Ubuntu 12.04 and Mint 13
Don’t do this on prior releases of the operating systems. There are reports of severe crashes (for me, there were only dependency errors but you never know)!
Gimp version 2.8 is now available as sourcecode and via ppa. It comes with an often requested single-window mode and a few other features. If you have any earlier versions of Gimp installed, purge those first:
sudo apt-get purge gimp*
To install it, add the ppa to your sources, update the apt database and install it:
sudo add-apt-repository ppa:otto-kesselgulasch/gimp
sudo apt-get update
sudo apt-get install gimp
To enable single-window mode, open Gimp and select Windows > Single-Window Mode

