Messages in this thread | | | Date | Mon, 2 Apr 2012 19:54:02 +0200 | From | Daniel Vetter <> | Subject | Re: [3.4-rc1][Regression][intel] Resume from suspend to disk hangs on restoring backlight state |
| |
On Mon, Apr 02, 2012 at 07:39:39PM +0200, Maciej Rutecki wrote: > Last known good: 3.3 > Bad kernel: 3.4-rc1 > Subsystem: power management/suspend/dri(intel) > > When I resume from suspend to disk then system hangs on this screen: > http://mrutecki.pl/download/kernel/3.4-rc1/suspend_resume/DSC_5479.jpg > > It does not help SysRq keys. Only I can force power off by hold power button. > > Dmesg: > http://mrutecki.pl/download/kernel/3.4-rc1/suspend_resume/dmesg-3.4-rc1.txt > > Config: > http://mrutecki.pl/download/kernel/3.4-rc1/suspend_resume/config-3.4.0-rc1
Likely a known regression, ppgtt support broke hibernate because my code doesn't restore the ppgtt page directory correctly in the thaw function.
Patch: http://cgit.freedesktop.org/~danvet/drm-intel/commit/?h=drm-intel-fixes&id=55a254ac63a3ac1867d1501030e7fba69c7d4aeb
Please test whether this fixes your issue. You can also try adding i915.i915_enable_ppgtt=0 to your kernel cmdline.
Thanks, Daniel -- Daniel Vetter Mail: daniel@ffwll.ch Mobile: +41 (0)79 365 57 48
| |