Description of problem: the journal show kernel warnings (see atachement) about drm : mai 02 21:50:56 zephir kernel: WARNING: CPU: 1 PID: 1071 at drivers/gpu/drm/drm_irq.c:1326 drm_wait_one_vblank+0x198/0x1a0 [drm] mai 02 21:50:56 zephir kernel: vblank wait timed out on crtc 0 these warnings appear at boot, and when switching from gui to vt's and back. Other than the warnings, i did not notice any malfunction. But nevertheless, it's ugly. A bug for the same problem has been files at freedesktop : https://bugs.freedesktop.org/show_bug.cgi?id=93782 Version-Release number of selected component (if applicable): kernel-4.6.0-0.rc5.2.mga6 How reproducible: every boot, and each switch from gui to vt's and back Steps to Reproduce: 1.from gui : CTRL+F2 to go to vt2, then CTRL+F1 to go back to gui 2. 3.
Created attachment 7733 [details] journal trace
Created attachment 7734 [details] lspci
CC: (none) => marja11Assignee: bugsquad => tmb
Mass-reassigning all bugs with "kernel" in the Source RPM field that are assigned to tmb, to the kernel packagers group, because tmb is currently MIA.
Assignee: tmb => kernel
Same problem here now, quite annoying as I cannot use mouse unless switching to console and back to graphical interface. After having a look I found that bug about Intel graphics: https://bugs.freedesktop.org/show_bug.cgi?id=93782 For now it seems there is no fix available :/
CC: (none) => ennael1
Reading the stacktrace, I guess xorg is asking the kernel to detect if there is a TV connected on the TV out connector and what it would support. http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree//drivers/gpu/drm/i915/intel_tv.c#n1329 Still, it is only waiting for 100ms so shouldn't be really noticeable except for the log spam Possibly related code I noticed: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree//drivers/gpu/drm/i915/intel_tv.c#n848
CC: (none) => pterjan