[Bug 97596] [SKL] [regression] Flickering artefact window at top left of screens in kernel 4.8-rc5

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97596

--- Comment #20 from rockorequin at hotmail.com ---
The flickering artefact was back when I tried the Ubuntu mainline 4.8.0-generic
kernel (making the desktop unusable with two monitors).

I built the mainline 4.8.0-generic from git with that commit reverted and I'm
not seeing the flickering artefact window right now. (Technically, I patched
mainline using the diff for that commit from drm-intel-nightly, since that
commit is for drm-intel-nightly.) The only other patch I applied was
0002-UBUNTU-SAUCE-no-up-disable-pie-when-gcc-has-it-enabl.patch.

I don't see the flickering in drm-intel-nightly 4.8.0-994.201610010211, either,
and that commit is still in there, right? So perhaps there's something random
that triggers the flickering? I did see it once before with drm-intel-nightly,
but only after a suspend/resume cycle.

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