[Bug 101269] [SNB] gpu hangs, pipe A vblank wait timed out

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101269

--- Comment #35 from Simon <sur3 at gmx.de> ---
Just tested with 4.18.9 kernel and it's sadly still broken:
[ 5820.211896] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]]
*ERROR* [CRTC:39:pipe A] flip_done timed out
[ 5830.238577] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]]
*ERROR* [CRTC:39:pipe A] flip_done timed out
[ 5840.265261] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]]
*ERROR* [CONNECTOR:52:LVDS-1] flip_done timed out
[ 5850.291892] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]]
*ERROR* [PLANE:28:primary A] flip_done timed out
[ 5860.318557] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]]
*ERROR* [CRTC:39:pipe A] flip_done timed out
...
[ 7739.144712] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]]
*ERROR* [CRTC:39:pipe A] flip_done timed out

I'll have a lot work atm, will try that kernel parameters asap.

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