I"m running xfce through Xubuntu 16.04 and this same problem starting showing up for me about a month ago. My display is a tv connected through hdmi. When I log in using a Unity desktop, rather than xfce/xubuntu, I don't have this problem.
I"m running xfce through Xubuntu 16.04 and this same problem starting showing up for me about a month ago. My display is a tv connected through hdmi. When I log in using a Unity desktop, rather than xfce/xubuntu, I don't have this problem.