Beryl with XGL in Feisty.

This is the guide everyone has been waiting for, enjoy. The trick is that you have to force bery-core to use 0.2.0~0beryl1 because latter versions don't work with Xgl. This not only works for the Dell Inspiron 1501 but works for any computer running an ATI card using Xgl.

Check ATI Driver
In a terminal type:
fglrxinfo

You should see this ouputed on your terminal window:
display: :0.0 screen: 0
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: RADEON XPRESS Series
OpenGL version string: 2.0.6334 (8.34.8)

Install Xgl & Beryl
Add the Beryl repositories to your source list.
In a terminal type:
sudo gedit /etc/apt/sources.list

Add this line to Your Source Lists
deb http://ubuntu.beryl-project.org/ feisty main
save and close file

Grab the Key for the repository, in a terminal type:
sudo wget http://ubuntu.beryl-project.org/root@lupine.me.uk.gpg -O- | sudo apt-key add -

Update Your System
In a terminal type:
sudo apt-get update

Now install Xgl & Beryl
In a terminal type:
sudo apt-get install xserver-xgl beryl-ubuntu beryl-manager

Setting Up XGL
In a terminal type:
sudo gedit /usr/local/bin/startxgl.sh

and this to the file:
#!/bin/sh
Xgl :1 -fullscreen -ac -accel xv:pbuffer -accel glx:pbuffer &
DISPLAY=:1
cookie="$(xauth -i nextract - :0 | cut -d ' ' -f 9)"
xauth -i add :1 . "$cookie"
exec dbus-launch --exit-with-session gnome-session
save and close file

Then make the xgl script executable by entering this into a terminal:
sudo chmod a+x /usr/local/bin/startxgl.sh

Creating a XGL Login
Make the script, by typing this into a terminal:
sudo gedit /usr/share/xsessions/xgl.desktop

add this text to the file:
[Desktop Entry]
Encoding=UTF-8
Name=Xgl
Comment=Start an Xgl Session
Exec=/usr/local/bin/startxgl.sh
Icon=
Type=Application
save and close file

Change Your Repository Settings
In a terminal type:
sudo gedit /etc/apt/preferences

Then add this ext to the file
Package: *
Pin: release o=lupine
Pin-Priority: 1000
save and close file

Update Your System
In a terminal type:
sudo apt-get update

Roll Back Beryl-Core
Downgrade beryl- core to a version that works with Xgl
In a terminal type:
sudo apt-get install beryl-core=0.2.0~0beryl1

Now You Just have to Log off and Log into your XGL session and run beryl.