Comment # 12 on bug 1085772 from Roger Whittaker

That worked for me, but with one or two problems.

 - After logging in I see a grey screen with mouse cursor until I do a
Ctrl-Alt-F2.

 - After logging in display resolutions are wrong (apparently switched as
between the two monitors that I'm using.

 - After logging in, middle mouse paste doesn't work (it did before when
logging in to plasma on Wayland from gdm, which is why I was doing this,
because the same was not true with sddm)

 - The name change doesn't show up for me (is it cached somewhere else?)