[Bug 109375] Regression: dark notebook display (no backlight) after resume

https://bugs.freedesktop.org/show_bug.cgi?id=109375

--- Comment #3 from Rafał Miłecki zajec5@gmail.com --- It didn't apply cleanly on top of 5.0.0-rc2 (a trivial conflict in the dc_link.c.rej). After fixing that, compiling & testing I can confirm is solves the problem for me! Thanks!

Before suspend:

cat /sys/class/backlight/amdgpu_bl0/{actual_brightness,brightness}

65535 255

After resume:

cat /sys/class/backlight/amdgpu_bl0/{actual_brightness,brightness}

64000 255

As it fixes a regression, can you submit it as a fix for the 5.0 release cycle, please?