I bisected this d3f281cf0493885d92ffc8e2c9e7e4e6d838d6a5 is the first bad commit commit d3f281cf0493885d92ffc8e2c9e7e4e6d838d6a5 Author: Daniel Vetter <daniel.vet...@ffwll.ch> Date: Fri Aug 10 11:10:20 2012 +0200
drm/i915: ignore eDP bpc settings from vbt BugLink: http://bugs.launchpad.net/bugs/1049899 commit 4344b813f105a19f793f1fd93ad775b784648b95 upstream. This has originally been introduced to not oversubscribe the dp links in commit 885a5fb5b120a5c7e0b3baad7b0feb5a89f76c18 Author: Zhenyu Wang <zhen...@linux.intel.com> Date: Tue Jan 12 05:38:31 2010 +0800 drm/i915: fix pixel color depth setting on eDP Since then we've fixed up the dp link bandwidth calculation code and should now automatically fall back to 6bpc dithering. So this is unnecessary. Furthermore it seems to break the new MacbookPro with retina display, hence let's just rip this out. Reported-by: Benoit Gschwind <gschw...@gnu-log.net> Cc: Benoit Gschwind <gschw...@gnu-log.net> Cc: Francois Rigaut <frig...@gmail.com> Cc: Greg KH <gre...@linuxfoundation.org> Tested-by: Benoit Gschwind <gschw...@gnu-log.net> Tested-by: Bernhard Froemel <froemel at vmars tuwien.ac.at> Signed-off-by: Daniel Vetter <daniel.vet...@ffwll.ch> -- Testing feedback highgly welcome, and thanks for Benoit for finding out that the bpc computations are busted. -Daniel Signed-off-by: Ben Hutchings <b...@decadent.org.uk> Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesin...@canonical.com> :040000 040000 9f64f0229b57f38a83c5a7040d6202557dc63940 53dc0ef26bef49a62dbdd317e218c05bf9330d62 M drivers -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1077064 Title: Laptop LCD goes black after booting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1077064/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs