I can confirm this with Mobility Radeon 7750M.
Originally Posted by dffx
In addition my dmesg shows me weird error:
Hopefully it would be fixed in 3.14 due to dpm rework made by Alex.
[drm:si_dpm_set_power_state] *ERROR* si_set_sw_state failed
By the way, did anyone see these messages:
Should I report a bug for intel developers? I also use the following comand line parameters during the boot:
[ 45.019084] [drm] stuck on render ring
[ 45.019094] [drm] GPU crash dump saved to /sys/class/drm/card1/error
[ 45.019096] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
[ 45.019108] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
[ 45.019109] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
[ 45.019110] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
Can they cause such behavior?
i915.i915_enable_rc6=7 i915.i915_enable_fbc=1 i915.lvds_downclock=1 drm.vblankoffdelay=1