Comment 21 for bug 554106

I don't know if I should open another ticket or just keep on talking on this one.

I have Lucid 64bit, updated 10 minutes ago from the main repositories (the bugfix was included) working on a Dell laptop with an Intel 945gm video card, 2GB RAM, Intel Dual Core processor.

I was experiencing same issue as before, but after the update, whenever I try to enable desktop effects (setting to normal), I get a small screen which says looking for drivers and after about 1 minute, it says that "Desktop effects cannot be enabled". Looking at the console, it reads:

$ gnome-appearance-properties
(gnome-appearance-properties:2398): Gdk-CRITICAL **: gdk_display_sync: assertion `GDK_IS_DISPLAY (display)' failed
(gnome-appearance-properties:2398): Gdk-CRITICAL **: gdk_display_sync: assertion `GDK_IS_DISPLAY (display)' failed
There is no available graphics driver for your system which supports the composite extension, or the current one already supports it.
compiz (core) - Warn: Exceeded max texture size
Launching fallback window manager
(gnome-appearance-properties:2398): Gdk-CRITICAL **: gdk_display_sync: assertion `GDK_IS_DISPLAY (display)' failed

I remember desktop effects used to work until now, even on my rusty, old, integrated 945gm. One more thing I should mention is that I am running a dual screen setup, the laptop monitor and a 23" external monitor (if that might help).

Thanks