Comment # 12 on bug 70934 from Rafał Miłecki

Created attachment 88238 [details] [review]
drm/radeon: enable FMT dither for non-DP-bridge eDP

I needed this patch to be able to see "dither" property for eDP, but it doesn't
change anything. I did:
xrandr --output eDP --set dither on
(and noticed changed in xrandr --prop), but it didn't improve colors for me.

I've also tried:
xrandr --output eDP --off; sleep 1s; xrandr --output eDP --auto
but it also didn't help.

Is dither supported for eDP at all?