On Sun, Aug 05, 2012 at 10:18:38PM +0100, Matthew Garrett wrote: > On Sun, Aug 05, 2012 at 11:14:12PM +0200, Daniel Vetter wrote: > > > I like this approach more - the only other solution I see is to ask the > > currently active driver (i.e. radeon) at bootime for the right mode. Which > > sounds much more hellish and fragile ... > > The "correct" approach is clearly to just have the drm core change the > i2c mux before requesting edid, but that's made difficult because of the > absence of ordering guarantees in initialisation. I don't like quirking > this, since we're then back to the situation of potentially having to > add every new piece of related hardware to the quirk list. The "correct" approach of switching the mux before we fetch the edid is actualy the one I fear will result in fragile code: Only run on few machines, and as you say with tons of funky interactions with the init sequence ordering. And I guess people will bitch&moan about the flickering this will cause ;-) As long as it's only apple shipping multi-gpu machines with broken/non-existing vbt, I'll happily stomach the quirk list entries. They're bad, but imo the lesser evil. -Daniel -- Daniel Vetter Mail: daniel@xxxxxxxx Mobile: +41 (0)79 365 57 48 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
