[Bug 101111] [Regression BDW] backlight flickering/display artifacting on Broadwell integrated graphics with 4.12-rc1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101111

--- Comment #21 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to Mark Spencer from comment #20)
> This patch forces my and similar systems to use panel type from OpRegion:
> 
> [drm] Using panel type from OpRegion on HP Spectre x360 Convertible

I'm just trying to look at the differences in the info used from the VBT based
on the difference in panel type, to check what exactly is the change that
causes flicker. The fact that it fixes the flicker may be purely coincidental,
and we may have a bug someplace else. That's all.

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