[Intel-gfx] FBC underruns on GMA4500?

[Alexey Fisher]

Hallo all,

i have some times on my primer desktop with Intel DG45ID board some sort
of flickering, it schort (1 second) and only half of the display. Same
sort of flickering i had with Bug 24314 - [945GME FBC] underruns
followed by freeze after resume with FBC enabled. The difference is - it
will not freeze.

If i understand it correctly , it is not normal. But i can't report it,
there is no messages in dmesg or xorg.log

Any thoughts about this?
Regards,
	Alexey