[Bug 92943] [xf86-video-intel] causes backlight to turn off after sleep resume

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92943

--- Comment #3 from MrHaroldA <harold at sait.nl> ---
Before suspend:

/sys/class/backlight/intel_backlight/type:raw
/sys/class/backlight/intel_backlight/brightness:426
/sys/class/backlight/intel_backlight/power/control:auto
/sys/class/backlight/intel_backlight/power/async:disabled
/sys/class/backlight/intel_backlight/power/runtime_enabled:disabled
/sys/class/backlight/intel_backlight/power/runtime_active_kids:0
/sys/class/backlight/intel_backlight/power/runtime_active_time:0
/sys/class/backlight/intel_backlight/power/runtime_status:unsupported
/sys/class/backlight/intel_backlight/power/runtime_usage:0
/sys/class/backlight/intel_backlight/power/runtime_suspended_time:0
/sys/class/backlight/intel_backlight/bl_power:0
/sys/class/backlight/intel_backlight/max_brightness:851
/sys/class/backlight/intel_backlight/actual_brightness:426


After resume:

sys/class/backlight/intel_backlight/type:raw
/sys/class/backlight/intel_backlight/brightness:426
/sys/class/backlight/intel_backlight/power/control:auto
/sys/class/backlight/intel_backlight/power/async:disabled
/sys/class/backlight/intel_backlight/power/runtime_enabled:disabled
/sys/class/backlight/intel_backlight/power/runtime_active_kids:0
/sys/class/backlight/intel_backlight/power/runtime_active_time:0
/sys/class/backlight/intel_backlight/power/runtime_status:unsupported
/sys/class/backlight/intel_backlight/power/runtime_usage:0
/sys/class/backlight/intel_backlight/power/runtime_suspended_time:0
/sys/class/backlight/intel_backlight/bl_power:4
/sys/class/backlight/intel_backlight/max_brightness:851
/sys/class/backlight/intel_backlight/actual_brightness:426


It's purely Xorg by the way; LightDM revives the screen correctly after resume,
but after logging in again, the screen is dimmed completely.

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