Got same bug. Compaq Mini 110, fresh install of Xubuntu 13.10.
'Settings Manager->Keyboard->Application Shortcuts' then remove XF86Display shortcut. It's ugly but worked for me.
Two things I figured out (may be helpful):
1. There are shortcut XF86Display defined which launches xfce4-display-settings application.
2. On the button lid switches this shortcut is triggered (OS thinks XF86Display key pressed?):
a) If suspend to RAM is enabled, it happens once at closing notebook lid (when lid opens xfce is still sleeping I guess);
b) If suspend to RAM is disabled, it happens twice (one at close and one at open).
Got same bug. Compaq Mini 110, fresh install of Xubuntu 13.10. >Keyboard- >Application Shortcuts' then remove XF86Display shortcut. It's ugly but worked for me. settings application.
'Settings Manager-
Two things I figured out (may be helpful):
1. There are shortcut XF86Display defined which launches xfce4-display-
2. On the button lid switches this shortcut is triggered (OS thinks XF86Display key pressed?):
a) If suspend to RAM is enabled, it happens once at closing notebook lid (when lid opens xfce is still sleeping I guess);
b) If suspend to RAM is disabled, it happens twice (one at close and one at open).