[Bug 109215] intermittent display on kaby lake/i915 from kernel 4.19 onwards

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Apr 4 01:34:05 UTC 2019


https://bugs.freedesktop.org/show_bug.cgi?id=109215

--- Comment #12 from masterpatricko at gmail.com ---
(In reply to Ville Syrjala from comment #11)
> 
> Output from intel_watermark (from
> git://anongit.freedesktop.org/xorg/app/intel-gpu-tools) for the fastboot=0
> flickering case and the fastboot=1 non-flickering case would be nice.

As mentioned in comment#9 I found my issue is actually better solved with
intel_idle.max_cstate=4.

I have saved the output of watermark with and without (during the black
screen/flickering), please see the latest attachments.

Tested with kernel 5.0.5-1-default from openSUSE.

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