How to install Beryl/AIGLX (Intel i915)

Follow the how-to on beryl project wiki.

If that does not work, check if you have direct rendering enabled (type into the terminal):

glxinfo | grep direct

The output should be:

direct rendering: Yes

If the output says No, check you have direct rendering manager loaded:

lsmod|grep 915

The output should be:

i915   21632  3
drm    74644  4 i915
tsdev   9152  0

If it shows only tsdev line, you can try to configure xorg.conf to driver i810, restart, CTRL-ALT-F1 to terminal session and configure xorg.conf back to use i915. That helped me.

How to install Beryl/AIGLX (Nvidia)

• Ensure all packages up to date

Install your *ubuntu-desktop metapackage specific to your DE, e.g. sudo apt-get install ubuntu-desktop
sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade

• Add repositories

gksudo gedit /etc/apt/sources.list

• Add the following line at the end of this file (x86 and amd64):

deb http://ubuntu.beryl-project.org/ edgy main

• Add key

wget http://ubuntu.beryl-project.org/root@lupine.me.uk.gpg -O- | sudo apt-key add -

• Save the edited file then update package lists

sudo apt-get update

• Install Beryl

sudo apt-get install beryl emerald-themes

• Back up xorg.conf

sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf_backup
gksudo gedit /etc/X11/xorg.conf

• Add this to xorg.conf "Screen" section

# Enable 32-bit ARGB GLX Visuals
   Option "AddARGBGLXVisuals" "True"

# If you are using an older version of compiz that
# does not support rendering into the Composite
# Overlay Window, you will need to disable clipping
# of GLX rendering to the X Root window with this
# option, or you will get a blank screen after
# starting compiz:
   Option "DisableGLXRootClipping" "True"

• Add this to xorg.conf "Device" section

Option          "TripleBuffer" "true"

• Restart X with ctrl+alt+backspace

• Start Beryl (if it doesn't start on its own)

beryl-manager

• Start Emerald (if it doesn't start on its own)

emerald --replace

• Have Beryl and Emerald load on login
  • System -> Preferences -> Sessions
  • Startup Programs -> Add

beryl-manager

and

emerald --replace

• • If, on reboot, program menus aren't displaying in the correct layer (you can't see them when you select them because they are displaying behind the window) then right click on the 'Beryl Manager' icon in the panel (the red gem icon) and select 'Reload Window Manager'. The problem should be solved the next time you reboot.

• Some users have found that the latest beryl packages are not working properly, and beryl fails to load. This can be fixed by:

Open synaptic package manager, search for beryl, press ctrl+e and select version 0.1.99.2 You have to do this for beryl, beryl-core, beryl-manager, beryl-plugins, beryl-plugins-data, beryl-settings, beryl-settings-binding, libberyldecoration0 and libberylsettings0

Source: http://ubuntuforums.org/showthread.php?t=353809