On Sunday 14 May 2017 19:28, Ar conveyed the following to
comp.windows.x.kde...
.xsession-errors isn't specific to KDE but rather to X11.
Considering that you're running Mageia 5, I would advise you to bring
this up in alt.os.linux.mageia, because it's quite evidently a bug in
their implementation of X.Org, and related to the abomination named
"systemd". ;)
--
= Aragorn =