[Bug 83459] [hsw] Dual display Lenovo IdeaPad y510p requires i915.invert_brightness=1 to not dim screen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83459

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO
           Assignee|mika.kuoppala at intel.com     |intel-gfx-bugs at lists.freede
                   |                            |sktop.org
            Summary|Dual display Lenovo IdeaPad |[hsw] Dual display Lenovo
                   |y510p requires              |IdeaPad y510p requires
                   |i915.invert_brightness=1 to |i915.invert_brightness=1 to
                   |not dim screen              |not dim screen

--- Comment #1 from Jani Nikula <jani.nikula at intel.com> ---
Please attach dmesg with drm.debug=0xe from early boot to the problem, without
the invert_brightness module parameter.

Can you adjust brightness?

What do you have in /sys/class/backlight?

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