Comment 4 for bug 407064

I was waiting for this bug report, as i'm experiencing the issue myself and haven't had the chance to look a previous report or make a new one.

However i've found this at Red Hat BTS..

https://fedoraproject.org/wiki/Common_F11_bugs#Display_goes_blank_briefly.2C_apparently_at_random

https://bugzilla.redhat.com/show_bug.cgi?id=501601

http://blogs.gnome.org/hughsie/2009/08/17/gnome-power-manager-and-blanking-removal-of-bodges/

Anyway as far as i now this is solved by now, or at least the patches are about to land in Karmic.