i have added a KVM switch (DVI) and run into trouble. Without the switch everything is normal, adding the switch causes a chaos, monitor on/off, unreadable display ,..... The switch itself is ok, it works fine under windows. Restarting X and rescanning does not help.
Anyone an idea where to look ?
$ xrandr -display :0 -q Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 8192 x 8192 DP-1 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 473mm x 296mm 1680x1050 60.0*+ 1280x1024 75.0 60.0 1152x864 75.0 1024x768 75.1 60.0 800x600 75.0 60.3 640x480 75.0 60.0 720x400 70.1 DP-2 disconnected (normal left inverted right x axis y axis)