Oh, the log also contains a <default pointer>:
~$ grep "default pointer" Xorg.0.log (**) |-->Input Device "<default pointer>" (WW) <default pointer>: No Device specified, looking for one... (II) <default pointer>: Setting Device option to "/dev/input/mice" (--) <default pointer>: Device: "/dev/input/mice" (==) <default pointer>: Protocol: "Auto" (**) <default pointer>: always reports core events (==) <default pointer>: Emulate3Buttons, Emulate3Timeout: 50 (**) <default pointer>: ZAxisMapping: buttons 4 and 5 (**) <default pointer>: Buttons: 9 (II) XINPUT: Adding extended input device "<default pointer>" (type: MOUSE) (--) <default pointer>: PnP-detected protocol: "ExplorerPS/2" (II) <default pointer>: ps2EnableDataReporting: succeeded
Oh, the log also contains a <default pointer>:
~$ grep "default pointer" Xorg.0.log porting: succeeded
(**) |-->Input Device "<default pointer>"
(WW) <default pointer>: No Device specified, looking for one...
(II) <default pointer>: Setting Device option to "/dev/input/mice"
(--) <default pointer>: Device: "/dev/input/mice"
(==) <default pointer>: Protocol: "Auto"
(**) <default pointer>: always reports core events
(==) <default pointer>: Emulate3Buttons, Emulate3Timeout: 50
(**) <default pointer>: ZAxisMapping: buttons 4 and 5
(**) <default pointer>: Buttons: 9
(II) XINPUT: Adding extended input device "<default pointer>" (type: MOUSE)
(--) <default pointer>: PnP-detected protocol: "ExplorerPS/2"
(II) <default pointer>: ps2EnableDataRe