https://bugs.freedesktop.org/show_bug.cgi?id=83226
--- Comment #16 from John john.ettedgui@gmail.com --- (In reply to Andy Furniss from comment #12)
xrandr --verbose will show you the options/output name and the current setting.
to change do something like -
xrandr --output HDMI-0 --set output_csc tvrgb
Oh xrandr, I hadn't used that in years. That worked thanks!
As for the patch themselves, I'll have to do more testing but so far I think it works. Thanks Alex!