[Bug 76811] Kernel sets wrong screen brightness resuming from suspend on Optimus enabled laptop

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=76811

Jani Nikula <jani.nikula at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #2 from Jani Nikula <jani.nikula at intel.com> ---
What driver do you use for optimus?

Which ones of the interfaces at /sys/class/backlight change the backlight
brightness if you echo there? (Note the potentially differing max_brightness
values.)

Echo distinct values to the brightness, cat brightness and actual_brightness
for each and paste here, do a suspend/resume, and repeat the cat and paste.

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