https://bugs.freedesktop.org/show_bug.cgi?id=105651
--- Comment #6 from Redsandro freedesktop@redsandro.e4ward.com --- I'm having the same issue with a 4K Dell UP2414Q with 3840x2160 as 1920x2160+0+0, 1920x2160 +1920+0.
Is it possible to do a workaround in xorg.conf, similar to nVidia's TwinView and nvidiaXineramaInfoOrder as described in this question?
https://unix.stackexchange.com/questions/536175/how-do-i-tile-two-displays-o...