Hallo,
das steht in deiner log
...
(**) Option "Device" "/dev/mouse"
(EE) xf86OpenSerial: Cannot open device /dev/mouse
No such file or directory.
(EE) Mouse1: cannot open input device
(EE) PreInit failed for input device "Mouse1"
...
schreib in deine Config mal /dev/input/mice anstelle vin /dev/mouse
Gruß
Michael