(In reply to poma from comment #21) > Valid for all three Xfwm4 compositors: > > w/ > Driver "nouveau" > > Option "AccelMethod" "none" > and/or > Option "NoAccel" "off" > > "... xrandr --auto" zaps Xserver > > > w/ > Driver "modesetting" > > "... xrandr --auto" works OK Nevertheless, SEGV catches xfdesktop and warnings are.