Comment 7 for bug 1683445

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Po-Hsu Lin (cypressyew) wrote :

The brightness hotkey will change the "brightness" level from /sys/class/backlight/nv_backlight/, but it seems that it's actually using the Intel one.

Modify the "brightness" file in /sys/class/backlight/intel_backlight/ can change the screen brightness.

Tested with 4.11rc7