$ grep -i mouse /var/log/Xorg.0.log
[    20.564] (==) |-->Input Device "Mouse0"
        Using the first mouse device.
[    22.576] (II) LoadModule: "mouse"
[    22.576] (II) Loading /usr/lib/xorg/modules/input/mouse_drv.so
[    22.595] (II) Module mouse: vendor="X.Org Foundation"
[    24.181] (==) NVIDIA(0): Silken mouse enabled
[    24.940] (II) Using input driver 'mouse' for 'Mouse0'
[    24.940] (II) Loading /usr/lib/xorg/modules/input/mouse_drv.so
[    24.940] (**) Mouse0: always reports core events
[    24.940] (**) Option "Device" "/dev/input/mouse0"
[    24.941] (**) Mouse0: Protocol: "IMPS/2"
[    24.941] (**) Mouse0: always reports core events
[    24.954] (**) Mouse0: ZAxisMapping: buttons 4 and 5
[    24.954] (**) Mouse0: Buttons: 9
[    24.954] (II) XINPUT: Adding extended input device "Mouse0" (type: MOUSE)
[    24.954] (**) Mouse0: (accel) keeping acceleration scheme 1
[    24.954] (**) Mouse0: (accel) acceleration profile 0
[    24.954] (**) Mouse0: (accel) acceleration factor: 2.000
[    24.954] (**) Mouse0: (accel) acceleration threshold: 4
[    25.189] (II) Mouse0: ps2EnableDataReporting: succeeded
[    25.199] (II) config/udev: Adding input device SteelSeries Kinzu (/dev/input/mouse0)
[  2180.133] (II) config/udev: Adding input device SteelSeries Kinzu (/dev/input/mouse0)
[  2182.735] (II) Mouse0: ps2EnableDataReporting: succeeded
[  3748.884] (II) config/udev: Adding input device SteelSeries Kinzu (/dev/input/mouse0)
[  3752.000] (II) Mouse0: ps2EnableDataReporting: succeeded
[  4759.883] (II) config/udev: Adding input device SteelSeries Kinzu (/dev/input/mouse0)
[  4763.787] (II) Mouse0: ps2EnableDataReporting: succeeded
[  8325.133] (II) config/udev: Adding input device SteelSeries Kinzu (/dev/input/mouse0)
[  8327.827] (II) Mouse0: ps2EnableDataReporting: succeeded
[  9747.633] (II) config/udev: Adding input device SteelSeries Kinzu (/dev/input/mouse0)
[  9750.711] (II) Mouse0: ps2EnableDataReporting: succeeded


$ tail -n12 /var/log/Xorg.0.log
[1308027.996] (II) config/udev: Adding input device SteelSeries Kinzu (/dev/input/mouse0)
[1308027.996] (II) No input driver/identifier specified (ignoring)
[1308037.486] (II) Open ACPI successful (/var/run/acpid.socket)
[1308037.553] (II) NVIDIA(0): Setting mode
[1308037.553] (II) NVIDIA(0):     "CRT:nvidia-auto-select+0+0,DFP:nvidia-auto-select+1280+0"
[1308037.980] (II) Mouse0: ps2EnableDataReporting: succeeded
[1310736.145] (II) config/udev: Adding input device SteelSeries Kinzu (/dev/input/mouse0)
[1310736.145] (II) No input driver/identifier specified (ignoring)
[1310750.174] (II) Open ACPI successful (/var/run/acpid.socket)
[1310750.241] (II) NVIDIA(0): Setting mode
[1310750.241] (II) NVIDIA(0):     "CRT:nvidia-auto-select+0+0,DFP:nvidia-auto-select+1280+0"
[1310750.663] (II) Mouse0: ps2EnableDataReporting: succeeded