GeForce Go 7900 GS black flash screen
Noticed a funny behavior on my inspiron 9400 using compiz-fusion for a pretty long time (at least 2 months): after a few hours, Xorg start to "blink": The screen becomes black for a really short time (1 or 2 frame) then every now and then part of the screen becomes black... Even if I kill compiz and start metacity, the problem persist... I usual had to kill X and everything return to normal...
I found out recently that changing setting using nvidia-settings seems to clear the issue (like changing GPU scaling...) [but it does not prevent the issue]
Here comes a tarball with 2 bug reports : 1 on a Xorg "blinking" (_flash) and the other after running the nvidia-settings that "fixed" the blinking (_nonflash)