Description of problem:
After enabling "Desktop Effects", windows are rendered with drop shadows
as expected. However, this is not the case for the panel and its menus.
Drop shadows are simply replaced by white areas of same dimensions.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Log into "GNOME" session.
2. Enable "Desktop Effects".
Top and bottom panels exhibit adjacent white bars. The same applies
to menus when opened - both those of panels or other ["GTK" based]
Both panels are accompanied by drop shadows, and so are the menus
There existed some decorator problems for the latest "compiz" versions
but before, everything seemed to work correctly although extremely
sluggishly compared to previous releases.
The graphics card is an "R100" based "ATI Radeon All in Wonder".
Unfortunately, I have not other system at hand in order to test "compiz"
for a driver other than the "radeon" one.
Created attachment 161188 [details]
Sample screenshot showing white "drop shadows"
I see that on my 965 too, investigating.
Turns out to be a problem with texture target for power-of-two textures. Should
be fixed by upgrading to compiz 0.5.2-5.0ec3ec (which will pull in new Xorg and