Dear Maintainer,

When setting XFWM4 from Xfce4, to use compositor (normally Compton),
screen has made whiteout, not usable anymore.

So, I did logout via both killall xfce4-session  and killall xfconfd
from another console.

Then I set "use_compositing" value to "false" of
~/.config/xfce4/xfconf/xfce-perchannel-xml/xfwm4.xml and re-login Xfce4.

After login, screen is normally again, not be whiteout.

Regards,
Ohta.