On Sun, Aug 12, 2012 at 11:48:02AM -0700, Greg KH wrote: > On Sun, Aug 12, 2012 at 11:33:05AM -0700, Greg KH wrote: > > On Sun, Aug 12, 2012 at 08:25:31PM +0200, Daniel Vetter wrote: > > > On Sun, Aug 12, 2012 at 11:21:57AM -0700, Greg KH wrote: > > > > Hi Daniel. > > > > > > > > The 3.6-rc1 kernel breaks my laptop, booting to a black screen when the > > > > i915 driver initializes itself. I bisected this down to commit > > > > 24ded204429fa0f5501d37c63ee35c555c0b75ee (drm/i915: properly enable the > > > > blc controller on the right pipe), and when I revert that, and also > > > > a4f32fc3a37e982fffce8ec583643990ff288419 (drm/i915: don't forget the PCH > > > > backlight registers) which depended on the first patch, my laptop works > > > > just fine. > > > > > > > > Below is the combined revert. > > > > > > > > Any thoughts? Any patch I can try out? > > > > > > http://cgit.freedesktop.org/~danvet/drm-intel/commit/?h=drm-intel-fixes&id=770c12312ad617172b1a65b911d3e6564fc5aca8 > > > > > > which is already merged to drm-intel-fixes. > > > > Ah, thanks, I'll go try that out, the Subject: line didn't draw my > > attention to it being the same problem as mine :) > > Yes, that works, many thanks. > > I'm guessing this is going to be going to Linus soon, right? Yeah, I'm stalling a bit for test results on an edp regression fixer that affects the new macbook air, but I'll send current -fixes to Dave in a few days. Thanks for reporting this regression, Daniel -- Daniel Vetter Mail: daniel at ffwll.ch Mobile: +41 (0)79 365 57 48