─:~$ sh compiz-start.sh
Found Xv 2.2
XV_HUE set to 0
============= starting compiz on both screens
============= compiz --display :0.0 --only-current-screen --replace
Checking for Xgl: not present. 
xset q doesn't reveal the location of the log file. Using fallback /var/log/Xorg.0.log 
Detected PCI ID for VGA: 
Checking for texture_from_pixmap: present. 
Checking for non power of two support: present. 
Checking for Composite extension: present. 
Checking screen 1Comparing resolution (2560x1600) to maximum 3D texture size (8192): Passed.
Checking screen 2Comparing resolution (1440x900) to maximum 3D texture size (8192): Passed.
Checking for Software Rasterizer: Not present. 
Checking for nVidia: present. 
Checking for FBConfig: present. 
running under gnome seesion, checking for gnomecompat
Checking for Xgl: not present. 
/usr/bin/compiz.real (video) - Warn: No 8 bit GLX pixmap format, disabling YV12 image format
/usr/bin/compiz.real (cube) - Warn: Failed to load slide: /usr/share/gdm/themes/Human/ubuntu.png
/usr/bin/compiz.real (cube) - Warn: Failed to load slide: /usr/share/gdm/themes/Human/ubuntu.png
Starting gtk-window-decorator
============= end 1st compiz display :0.0
============= compiz --display :0.1 --only-current-screen --replace
Checking for Xgl: not present. 
xset q doesn't reveal the location of the log file. Using fallback /var/log/Xorg.0.log 
Detected PCI ID for VGA: 
Checking for texture_from_pixmap: present. 
Checking for non power of two support: present. 
Checking for Composite extension: present. 
Checking screen 1Comparing resolution (2560x1600) to maximum 3D texture size (8192): Passed.
Checking screen 2Comparing resolution (1440x900) to maximum 3D texture size (8192): Passed.
Checking for Software Rasterizer: Not present. 
Checking for nVidia: present. 
Checking for FBConfig: present. 
running under gnome seesion, checking for gnomecompat
Checking for Xgl: not present. 
/usr/bin/compiz.real (video) - Warn: No 8 bit GLX pixmap format, disabling YV12 image format
/usr/bin/compiz.real (cube) - Warn: Failed to load slide: /usr/share/gdm/themes/Human/ubuntu.png
/usr/bin/compiz.real (cube) - Warn: Failed to load slide: /usr/share/gdm/themes/Human/ubuntu.png
Starting gtk-window-decorator
============= end 1st display :0.1

(awn-applets-migration:4585): GLib-GObject-WARNING **: invalid uninstantiatable type `(null)' in cast to `AwnConfigClient'
Screen is composited.
APPLET : /usr/share/avant-window-navigator/applets/taskman.desktop
============= end :0.0 avant-window-navigator

(awn-applets-migration:4589): GLib-GObject-WARNING **: invalid uninstantiatable type `(null)' in cast to `AwnConfigClient'
Screen is composited.
APPLET : /usr/share/avant-window-navigator/applets/taskman.desktop
============= end :0.1 avant-window-navigator