I experience this bug too, i.e. somethimes the screen blanks, and after a reboot I find the message "kernel BUG at /build/buildd/linux-2.6.35/drivers/gpu/drm/i915/i915_gem.c:4224!" in syslog.
I run Ubuntu Maverick on an Acer Travelmate laptop. Let me know if I should provide any log or some other information.
I experience this bug too, i.e. somethimes the screen blanks, and after a reboot I find the message "kernel BUG at /build/ buildd/ linux-2. 6.35/drivers/ gpu/drm/ i915/i915_ gem.c:4224! " in syslog.
I run Ubuntu Maverick on an Acer Travelmate laptop. Let me know if I should provide any log or some other information.