Created attachment 4769 displays.xml I recently discovered a strange behavior. My wireless network connection broke down when I configured my monitors via xfce-settings. After some trial and error (and distro-hopping and hardware changing) I noticed, that deleting the displays.xml in the ~/.config/xfce4/xfconf/xfce-perchannel-xml/ folder did solve this problem. My configuration: ATI Radeon HD 5450 with os-driver Atheros AR5212/AR5213 and AR 9001 wifi cards loading color profiles via dispwin in .xinitrc Affected Distros: ArchLinux current (4.10) Debian 7.0 (4.8) Frugalware 1.7 (4.10)
I don't see how this could be the fault of Xfce, we don't handle network in any way.
I now, but I recognized, that deleting this file helped – and it was generated and used by XFCE. An Openbox-Session (same setup) did not have that problem at all. But finally (by testing besides writing this comment) I got the solution – via XFCE display setup I had an 75 Hz refresh rate – via xrandr I only have 60 Hz. If I switch via xrandr to 75 Hz, I've got the same issue. Sorry for any circumstances! Otto