APPLIED/cmt: [PATCH V2 0/1][SRU][E] drm/i915/fbc: disable framebuffer compression on IceLake

Seth Forshee seth.forshee at
Thu Sep 5 20:37:22 UTC 2019

On Mon, Sep 02, 2019 at 08:18:53PM +0800, 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.

The format of your buglink is incorrect and leads to a "Lost something?"
page in launchpad.. I fixed it when applying, but please use the<number> format in the fugure.

Applied to eoan/master-next and unstable/master, thanks!

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