[Bug 21321] Vblank interrupt increase during 'dpms off'

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=21321





--- Comment #10 from Michel Dänzer <michel at daenzer.net>  2009-04-29 08:34:30 PST ---
(In reply to comment #9)
> (In reply to comment #8)
> > The X driver I think, apparently it considers the CRTC disabled but it's still
> > generating vertical blank interrupts.
> 
> Is this only a bug on specific hardware models or a generel bug?

Not sure but I suspect it affects all Radeons, at least all pre-AVIVO ones.

> I think the 6.9.0 driver did properly disable my hardware (radeon 7500), but
> now it doesn't!

Interesting, sounds like the old driver really disabled the CRTC while the
current one leaves it somewhat enabled. Alex, does this give you any ideas?


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