Beryl is an OpenGL accelerated desktop that seeks to provide a free, open source desktop experience to the community that reflects the wishes of the users. Above all else, the project seeks to listen to and respond to the requests of the user base.
Beryl is a combined window manager and composite manager written in C using OpenGL to provide acceleration. It is designed to be highly flexible, extensible, and portable, all the while keeping in mind that the users know how they want their desktops to act better than we do. With Beryl the rather esoteric concept of the computer desktop is brought down to a more human level, allowing for a more native and intuitive understanding of your workspace.
Install Beryl in Debian etch
First you need to edit the /etc/apt/sources.list file to add beryl repositories
deb http://debian.beryl-project.org/ etch main
deb-src http://debian.beryl-project.org/ etch main
Now you need to save and exit the file
Download gpg key using the following command
#wget -O -- http://firstname.lastname@example.org | sudo apt-key add --
Now you need to update the source list information using the following command
Install beryl using the following command
#apt-get install beryl-manager emerald-themes
This will install all the required packages for beryl.
Now you need to edit the /etc/X11/xorg.conf file and do the following changes
then added these two lines under the “Screen” section
Option "AddARGBGLXVisuals" "true"
then added these lines under “Device”
Option "AllowGLXWithComposite" "true"
Option "RenderAccel" "true"
added one line under “Server Layout”
Option “AIGLX” "on"
Finally at the end of the file add these lines
Option "Composite" "Enable"
Now save the file and exit.
You need to reboot your Debian Etch system and now your beryl and nvidia starts working