(In reply to Takashi Iwai from comment #2) > Yes, looks so. > > I checked Leap 15.1 with the latest XFCE package in OBS X11:xfce, and the > problem could be reproduced. > > Maurizio, could you check TW system whether it shows the same problem? Yes TW also. Likely needs to be reported upstream but I will run a final test with RAT, as it uses latest xfce4-session from git master.