Comment 181 for bug 1870736

Happy to say that for that for me at least it works. No more choppy mouse movement and I am able to use both my monitors with the first in 150% and the second in 175%. I also tested playing some 4k movies in firefox, which worked fine.

DP-0 connected primary 5120x2880+0+0 (normal left inverted right x axis y axis) 698mm x 393mm
   3840x2160 60.00*+ 59.94 50.00 29.98 29.97 25.00 23.98 23.98
...

DP-2 connected 4384x2466+5120+0 (normal left inverted right x axis y axis) 521mm x 293mm
   3840x2160 60.00*+ 29.98
...

Thanks to all involved for fixing this issue!