通过 UI 配置（设置 -> 设备 -> 鼠标和触摸板）不会对以下设置应用任何内容：
- 主要按钮
- 鼠标速度
我的笔记本电脑上连接了 USB 鼠标。附加触摸板的 xinput 列表：
xinput list-props 21
Device 'PS/2 Generic Mouse':
Device Enabled (147): 1
Coordinate Transformation Matrix (149): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Product ID (269): 2, 1
Device Node (270): "/dev/input/event22"
Evdev Axis Inversion (281): 0, 0
Evdev Axes Swap (283): 0
Axis Labels (284): "Rel X" (157), "Rel Y" (158)
Button Labels (285): "Button Left" (150), "Button Middle" (151), "Button Right" (152), "Button Wheel Up" (153), "Button Wheel Down" (154)
Evdev Scrolling Distance (286): 0, 0, 0
Evdev Middle Button Emulation (287): 0
Evdev Middle Button Timeout (288): 50
Evdev Middle Button Button (289): 2
Evdev Third Button Emulation (290): 0
Evdev Third Button Emulation Timeout (291): 1000
Evdev Third Button Emulation Button (292): 3
Evdev Third Button Emulation Threshold (293): 20
Evdev Wheel Emulation (294): 0
Evdev Wheel Emulation Axes (295): 0, 0, 4, 5
Evdev Wheel Emulation Inertia (296): 10
Evdev Wheel Emulation Timeout (297): 200
Evdev Wheel Emulation Button (298): 4
Evdev Drag Lock Buttons (299): 0
附加 USB 外接鼠标的 xinput 列表：
xinput list-props 11
Device 'USB OPTICAL MOUSE ':
Device Enabled (147): 1
Coordinate Transformation Matrix (149): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Product ID (269): 10077, 2601
Device Node (270): "/dev/input/event7"
Evdev Axis Inversion (281): 0, 0
Evdev Axes Swap (283): 0
Axis Labels (284): "Rel X" (157), "Rel Y" (158), "Rel Horiz Wheel" (275), "Rel Vert Wheel" (276)
Button Labels (285): "Button Left" (150), "Button Middle" (151), "Button Right" (152), "Button Wheel Up" (153), "Button Wheel Down" (154), "Button Horiz Wheel Left" (155), "Button Horiz Wheel Right" (156), "Button Side" (273), "Button Extra" (274), "Button Unknown" (272), "Button Unknown" (272), "Button Unknown" (272), "Button Unknown" (272)
Evdev Scrolling Distance (286): 1, 1, 1
Evdev Middle Button Emulation (287): 0
Evdev Middle Button Timeout (288): 50
Evdev Middle Button Button (289): 2
Evdev Third Button Emulation (290): 0
Evdev Third Button Emulation Timeout (291): 1000
Evdev Third Button Emulation Button (292): 3
Evdev Third Button Emulation Threshold (293): 20
Evdev Wheel Emulation (294): 0
Evdev Wheel Emulation Axes (295): 0, 0, 4, 5
Evdev Wheel Emulation Inertia (296): 10
Evdev Wheel Emulation Timeout (297): 200
Evdev Wheel Emulation Button (298): 4
Evdev Drag Lock Buttons (299): 0