[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 #26 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to Clinton Taylor from comment #25)
> After examining the VBT file the most likely difference between panel type
> #14 and Panel type #0 is the backlight PWM frequency. Panel #14 has pwm
> frequency defined at 200 Hz and Panel #0 has a frequency of 10000 Hz. The
> flicker most likely observed by the user is backlight induced.

Yeah I looked at the diff, but we always try to use the frequency that BIOS set
up before using what's in VBT...

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