Launchpad has imported 3 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=56401.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2012-10-25T16:24:06+00:00 Robert Hooker wrote: 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=4344b813f105a19f793f1fd93ad775b784648b95 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) (failing) [ 14.264823] [drm:intel_choose_pipe_bpp_dither], setting pipe bpc to 8 (max display bpc 8) Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1070978/comments/9 ------------------------------------------------------------------------ On 2012-10-25T16:24:52+00:00 Robert Hooker wrote: Created attachment 69077 intel_reg_dumper output (working) Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1070978/comments/10 ------------------------------------------------------------------------ On 2012-10-25T16:25:16+00:00 Robert Hooker wrote: Created attachment 69078 intel_reg_dumper output (failing) Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1070978/comments/11 ** Changed in: linux Status: Unknown => Confirmed ** Changed in: linux Importance: Unknown => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1070978 Title: eDP laptop screen does not come up until a suspend/resume cycle happens. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1070978/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
