I use my computer on a projector that does not have keystone correction. I have been using X and xrandr --transform to implement it:
--transform a,b,c,d,e,f,g,h,i
Specifies a transformation matrix to apply on the output.
This is notoriously buggy; in my case, putting the 4 corners at the correct position leads to a distortion starting around the diagonal.
Question: Can keystone correction be done in Wayland, and if yes, how?
