It's working properly in 3.7, but 3.6 is broken without reverting that, and that commit was backported to the stable kernels which are now broken also. Suspending/resuming the machine after booting brings the display back up.
(working with revert)
[ 12.179335] [drm:intel_choose_pipe_bpp_dither], clamping display bpc (was -1) to eDP (6)
[ 12.179337] [drm:intel_choose_pipe_bpp_dither], setting pipe bpc to 8 (max display bpc 6)
Created attachment 69076
dmesg after reproducing it with drm.debug=0xe
This commit causes a lenovo v490u to have a black screen after booting
http:// git.kernel. org/?p= linux/kernel/ git/torvalds/ linux.git; a=commit; h=4344b813f105a 19f793f1fd93ad7 75b784648b95
It's working properly in 3.7, but 3.6 is broken without reverting that, and that commit was backported to the stable kernels which are now broken also. Suspending/resuming the machine after booting brings the display back up.
(working with revert) choose_ pipe_bpp_ dither] , clamping display bpc (was -1) to eDP (6) choose_ pipe_bpp_ dither] , setting pipe bpc to 8 (max display bpc 6)
[ 12.179335] [drm:intel_
[ 12.179337] [drm:intel_
(failing) choose_ pipe_bpp_ dither] , setting pipe bpc to 8 (max display bpc 8)
[ 14.264823] [drm:intel_