Install the libxcomposite1 package from apt.
# apt-get install libxcomposite1
Make sure these parameters are present at the end of /etc/X11/xorg.conf
Section "Extensions"
Option "Composite" "Enable"EndSection
Add the gpg key :
wget -O - http://debian.beryl-project.org/root@lupine.me.uk.gpg | sudo apt-key add -
Edit your /etc/apt/sources.list file
Packages are available from debian.beryl-project.org. To enable this repository, add the following two lines to your /etc/apt/sources.list:
deb http://debian.beryl-project.org/ etch main
deb-src http://debian.beryl-project.org/ etch main
Then run:
# apt-get update
Notice this is for Etch and not the "testing" release. Now that Etch is the Debian stable release, Lenny is the new Testing version. Please be sure you have etch named in your sources.list file and not testing.
Download and install the packages:
# apt-get install beryl beryl-core beryl-dev \
beryl-manager beryl-plugins beryl-plugins-data \
beryl-settings emerald emerald-themes
