I have recently upgraded two machines from 11.2 to 11.3. One of them is a two-head multiseat running Xephyr displays.
The following commands were working perfectly on 11.2 (Xorg/Xephyr 7.4):
X1_KBD=/dev/input/by-id/usb-LITEON_Technology_USB_Multimedia_Keyboard-event-kbd
X1_MOUSE=/dev/input/by-path/pci-0000:00:12.0-usb-0:3:1.0-event-mouse
/usr/bin/Xephyr -ac -br +kb -screen 1680x1050 -dpi 86 -keybd evdev,,device=$X1_KBD,xkbrules=xorg,xkbmodel=evdev,xkblayout=gb -mouse evdev,,device=$X1_MOUSE -query someserver :4
Now, taking into account that the +kb/-kb options were removed on Xephyr 7.5 I removed those, but otherwise issued a totally identical command:
X1_KBD=/dev/input/by-id/usb-LITEON_Technology_USB_Multimedia_Keyboard-event-kbd
X1_MOUSE=/dev/input/by-path/pci-0000:00:12.0-usb-0:3:1.0-event-mouse
/usr/bin/Xephyr -ac -br -screen 1680x1050 -dpi 86 -keybd evdev,,device=$X1_KBD,xkbrules=xorg,xkbmodel=evdev,xkblayout=gb -mouse evdev,,device=$X1_MOUSE -query someserver :4
The Xephyr display comes up all right, but it does not respond to mouse or keyboard events, and it complains that it “Couldn’t find pointer driver evdev” and “Couldn’t find keyboard driver evdev”.
Other than the fact that there are two monitors and two keyboards/mice connected to it, that computer’s configuration is fairly standard. I have also tried this on two other machines running openSUSE 11.3 (one of which is a bog-standard install) with exactly the same result.
Any ideas at all?