On Wed, May 14, 2014 at 03:43:53PM -0400, Josh Boyer wrote: > On Wed, May 14, 2014 at 3:33 PM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > On Wed, May 14, 2014 at 09:19:32PM +0200, Daniel Vetter wrote: > >> On Wed, May 14, 2014 at 08:47:38PM +0200, Bruno Prémont wrote: > >> > CCing intel-gfx as otherwise it will probably not get seen by developers. > >> > > >> > On Sun, 11 May 2014 Carbonated Beverage <ramune@xxxxxxxxxxxxxxxxxxxxxxxx> wrote: > >> > > Bisecting from 3.13.6 (good) to 3.14.3 (bad) ended up with... > >> > > > >> > > commit b35684b8fa94e04f55fd38bf672b737741d2f9e2 > >> > > Author: Jani Nikula <jani.nikula@xxxxxxxxx> > >> > > Date: Thu Nov 14 12:13:41 2013 +0200 > >> > > > >> > > drm/i915: do full backlight setup at enable time > >> > > > >> > > We should now have all the information we need to do a full > >> > > initialization of the backlight registers. > >> > > > >> > > v2: Keep QUIRK_NO_PCH_PWM_ENABLE for now (Imre). > >> > > > >> > > Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx> > >> > > Reviewed-by: Imre Deak <imre.deak@xxxxxxxxx> > >> > > Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx> > >> > > > >> > > Which is in 3.12.0???? > >> > > > >> > > I'm not sure how that came to be. Does that look right? What other > >> > > information would be required to track this down? > >> > >> We've killed this again in 3.14 since we've hoped the backlight rework in > >> there fixed it. For 3.15 we finally have the right fix - vbt has a bit > >> telling us not to look at the integrated PWM for the panel. > >> > >> For 3.14 we will (again) resurrect the quirk because the vbt thing is a > >> bit too risky an imo needs a full -rc cycle for testing. But that revert > >> is currently stalled because Greg KH is travelling too much ;-) > >> > >> Cc'ing him to make sure that patch doesn't miss the next 3.14.x release. > > > > What specific patch are you wanting to make sure makes it in? I've been > > Subject: [PATCH for stable 3.14 only 0/1] drm/i915: restore > QUIRK_NO_PCH_PWM_ENABLE Yep, that's the one. Jani's mail has a detailed explanation of the hilarity we've pulled off this time around. > > avoiding all of the drm patches so far for 3.14.y as it's an easy thing > > to do, but I'll eventually have to start paying attention to them :) Hey, you've praised me at fosdem how good a job we do with tagging cc: stable, you need to keep up your end of the bargain too ;-) > Jani has bugged you twice about it I think. You've said it's not lost > both times. Third time is a charm? Cheers, Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
