[Bug 94628] Xorg fails to thaw from hibernate with intel errors

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94628

--- Comment #6 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
(In reply to JM9 from comment #4)
> Created attachment 124131 [details]
> dmesg with drm.debug=0xe
> 
> I've attached the full dmesg with elevated debug level.

Not seeing anything really wrong there. It seems to resume just find, and the
display should be up and running.

I did notice that the backlight a perhaps a bit dim after resume:
[    8.231922] [drm:intel_panel_actually_set_backlight] set backlight PWM = 244
whereas before suspend it was at max (4882).

You may want to try to force it to the max to see if that "fixes" things for
you:
# cat /sys/class/backlight/intel_backlight/max_brightness >
/sys/class/backlight/intel_backlight/brightness

The unclaimed register errors look harmless (I think they might be coming from
the code that resets the frame start delays, as that code doesn't do the
necessary power domain checks).

-- 
You are receiving this mail because:
You are the assignee for the bug.
You are on the CC list for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20160809/73a3014b/attachment.html>