mkzelda@donatello ~ $ cat /var/log/Xorg.0.log | grep -i "mouse"
[346605.471] Kernel command line: root=/dev/sda5 usbhid.mousepoll=1
[346605.474] (WW) AllowEmptyInput is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[346606.466] (==) NVIDIA(0): Silken mouse enabled
[346606.594] (II) Microsoft Comfort Curve Keyboard 2000: Found 1 mouse buttons
[346606.594] (II) Microsoft Comfort Curve Keyboard 2000: Configuring as mouse
[346606.594] (II) config/udev: Adding input device Logitech USB Gaming Mouse (/dev/input/event5)
[346606.594] (**) Logitech USB Gaming Mouse: Applying InputClass "evdev pointer catchall"
[346606.594] (**) Logitech USB Gaming Mouse: always reports core events
[346606.594] (**) Logitech USB Gaming Mouse: Device: "/dev/input/event5"
[346606.602] (II) Logitech USB Gaming Mouse: Found 20 mouse buttons
[346606.602] (II) Logitech USB Gaming Mouse: Found scroll wheel(s)
[346606.602] (II) Logitech USB Gaming Mouse: Found relative axes
[346606.602] (II) Logitech USB Gaming Mouse: Found x and y relative axes
[346606.602] (II) Logitech USB Gaming Mouse: Configuring as mouse
[346606.602] (**) Logitech USB Gaming Mouse: YAxisMapping: buttons 4 and 5
[346606.602] (**) Logitech USB Gaming Mouse: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
[346606.602] (II) XINPUT: Adding extended input device "Logitech USB Gaming Mouse" (type: MOUSE)
[346606.602] (**) Logitech USB Gaming Mouse: (accel) keeping acceleration scheme 1
[346606.602] (**) Logitech USB Gaming Mouse: (accel) acceleration profile 0
[346606.602] (**) Logitech USB Gaming Mouse: (accel) acceleration factor: 2.000
[346606.602] (**) Logitech USB Gaming Mouse: (accel) acceleration threshold: 4
[346606.602] (II) Logitech USB Gaming Mouse: initialized for relative axes.
[346606.602] (II) config/udev: Adding input device Logitech USB Gaming Mouse (/dev/input/mouse0)