Comment # 24 on bug 73530 from Alex Deucher

(In reply to comment #23)
> Turning the display off and on again, the display works fine.
> 
>     $ xrandr --output eDP --off
>     $ xrandr --output eDP --auto

Does that work without patches or only with one of the patches from this bug? 
If it requires a patch or patches, which one(s)?