Ubuntu XGL
From Jon's Wiki
This HOWTO assumes Ubuntu 6.10 (Edgy Eft).
Installation
Add this to your apt sources:
deb http://ubuntu.beryl-project.org/ edgy main
Add the Beryl repository key to the apt keyring:
wget http://ubuntu.beryl-project.org/root@lupine.me.uk.gpg -O- | sudo apt-key add -
Then, update and install XGL and Beryl:
sudo apt-get update sudo apt-get install xserver-xgl beryl emerald-themes
Configuration
To change your primary login, edit the /etc/gdm/gdm.conf-custom file:
sudo vi /etc/gdm/gdm.conf-custom
Go to the very bottom of the file and add:
0=Xgl [server-Xgl] name=Xgl server command=/usr/bin/Xgl :0 -fullscreen -ac -accel glx:pbuffer -accel xv:fbo flexible=true
Logout and restart the gdm service:
sudo invoke-rc.d gdm restart
Log back in, press ALT-F2 and run beryl-manager. Add beryl-manager to your Gnome start up programs.
References
Refer to the XGL Ubuntu install page from the Beryl wiki for more details and troubleshooting.