[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 #49 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to Mark Spencer from comment #46)
> Well, i915.enable_psr defaults to 0 since 4.9.3 on HSW/BDW, see
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/
> commit/?id=2bdb638de2fc9c2c1aa15ecdf28e295786a02ea1 so i915.enable_psr=0
> parameter is redundant unless I'm missing something.

So it now defaults to disabled for a reason. The parameter is "unsafe" for a
reason. If you enable PSR when it's not enabled by default for your platform,
all bets are off. We don't support it.

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