APPLIED Re: [PATCH V3 0/2][SRU][OEM-OSP1-B] drm/i915/fbc: disable framebuffer compression on IceLake

Timo Aaltonen tjaalton at
Mon Sep 9 09:29:14 UTC 2019

On 6.9.2019 12.47, You-Sheng Yang wrote:
> BugLink:
> [Impact]
> On IceLake platforms there might be a thin, horizon strap of corruption
> image at the top of screen randomly after some series of window
> operations and disappears within a second or so. This is found on
> multiple platforms and is quite annonying that results in bad user
> experience.
> [Fix]
> The upstream bug has been filed for previous platforms, e.g. GeminiLake
> for an year or so, still working in progress, and so far this only known
> work-around is to turn off framebuffer compression on affected platforms.
> [Test Case]
> The most easy way is to observe if such corruption appears during the
> transition from GDM to gnome-shell. Verified on pre-launch ICL
> platforms.
> [Regression Risk]
> Low. The work-around for GeminiLake was landed to Linux stable 4.14.125
> and has been backported to B/D.
> Daniel Drake (1):
>   drm/i915/fbc: disable framebuffer compression on GeminiLake
> You-Sheng Yang (1):
>   UBUNTU: SAUCE: drm/i915/fbc: disable framebuffer compression on
>     IceLake
>  drivers/gpu/drm/i915/intel_fbc.c | 5 +++++
>  1 file changed, 5 insertions(+)

the first commit was already inherited from disco, but the other was got
applied to oem-next, thanks


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