[Bug 67454] After suspend/resume, screen is black for all but the highest levels with i915 driver on MacBook Air 6,2

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67454

--- Comment #35 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to comment #0)
> The hotkeys still
> technically work and show the percentage correctly (and
> /sys/class/backlight/intel_backlight/brightness appears to show the correct
> value too), but the actual screen is either all on or all off.

Does /sys/class/backlight/intel_backlight/actual_brightness change as expected
too when you observe the issue?

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