Michael, please keep the Cc: list intact. On 26.10.2015 19:46, Michael Burian wrote: > On 10/26/15 10:32, Michel Dänzer wrote: >> On 25.10.2015 04:25, Michael Burian wrote: >>> >>> # first bad commit: [5a633828b4b2bef343826afcb0a70770c4911c55] drm/radeon: Restore LCD backlight level on resume (>= R5xx) >>> >>> Workaround 2: >>> >>> reverting this single commit 5a633828b4b2bef343826afcb0a70770c4911c55 fixes the problem in linux-stable[0] >>> as well as mainline[1] 4.3.0-rc6-00277-g01815536 >> >> Please provide the dmesg output from running with the attached debugging >> patch. >> > > [0] contains dmesg output with your patch applied (which fixes the backlight issue) This is very surprising: The patch just adds some debugging output, it's not supposed to have any functional effect. Also, I don't see any of the debugging output added by the patch in dmesg-4.3.0-rc7-00003-g85051e2-dirty-2015-10-26-11-00-41-radeon-bl-debug. Are you sure that my patch was actually applied to the radeon driver when generating that file? Did you update the initrd with the patched radeon.ko? > [1] contains dmesg output without your patch for comparison (resulting in a permanent black screen as before in rc6) > > > [0] > dmesg-4.3.0-rc7-00003-g85051e2-dirty-2015-10-26-11-00-41-radeon-bl-debug > > [1] > dmesg-4.3.0-rc7-00003-g85051e2-2015-10-26-11-22-09 > > -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel