我使用的是 Ubuntu 20.04，内核版本为 5.8.0-43-generic。TrackPoint（键盘上的红点）在 ubuntu 20.04 上不起作用（按钮也不起作用）。我安装了 synaptics 驱动程序，它改善了 TouchPad 体验，但对 TrackPoint 没有帮助。以下是输出xinput：
amareyah@pc: xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Elan Touchpad id=11 [slave pointer (2)]
⎜ ↳ Elan TrackPoint id=12 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Video Bus id=6 [slave keyboard (3)]
↳ Power Button id=7 [slave keyboard (3)]
↳ Sleep Button id=8 [slave keyboard (3)]
↳ Integrated Camera: Integrated C id=9 [slave keyboard (3)]
↳ Integrated Camera: Integrated I id=10 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=13 [slave keyboard (3)]
↳ ThinkPad Extra Buttons id=14 [slave keyboard (3)]
amareyah@pc: xinput list-props 12
Device 'Elan TrackPoint':
Device Enabled (179): 1
Coordinate Transformation Matrix (181): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
libinput Natural Scrolling Enabled (355): 0
libinput Natural Scrolling Enabled Default (356): 0
libinput Scroll Methods Available (357): 0, 0, 1
libinput Scroll Method Enabled (358): 0, 0, 1
libinput Scroll Method Enabled Default (359): 0, 0, 1
libinput Button Scrolling Button (360): 2
libinput Button Scrolling Button Default (361): 2
libinput Middle Emulation Enabled (362): 0
libinput Middle Emulation Enabled Default (363): 0
libinput Accel Speed (364): 0.007353
libinput Accel Speed Default (365): 0.000000
libinput Accel Profiles Available (366): 1, 1
libinput Accel Profile Enabled (367): 1, 0
libinput Accel Profile Enabled Default (368): 1, 0
libinput Left Handed Enabled (369): 0
libinput Left Handed Enabled Default (370): 0
libinput Send Events Modes Available (302): 1, 0
libinput Send Events Mode Enabled (303): 0, 0
libinput Send Events Mode Enabled Default (304): 0, 0
Device Node (305): "/dev/input/event5"
Device Product ID (306): 1267, 14
libinput Drag Lock Buttons (371): <no items>
libinput Horizontal Scroll Enabled (372): 1
amareyah@pc: xinput list-props 11
Device 'Elan Touchpad':
Device Enabled (179): 1
Coordinate Transformation Matrix (181): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (312): 1
Device Accel Constant Deceleration (313): 2.500000
Device Accel Adaptive Deceleration (314): 1.000000
Device Accel Velocity Scaling (315): 8.455882
Synaptics Edges (316): 122, 2938, 110, 1934
Synaptics Finger (317): 25, 30, 0
Synaptics Tap Time (318): 180
Synaptics Tap Move (319): 161
Synaptics Tap Durations (320): 180, 180, 100
Synaptics ClickPad (321): 1
Synaptics Middle Button Timeout (322): 0
Synaptics Two-Finger Pressure (323): 282
Synaptics Two-Finger Width (324): 7
Synaptics Scrolling Distance (325): -73, 73
Synaptics Edge Scrolling (326): 0, 0, 0
Synaptics Two-Finger Scrolling (327): 1, 1
Synaptics Move Speed (328): 1.000000, 1.750000, 0.054363, 0.000000
Synaptics Off (329): 0
Synaptics Locked Drags (330): 0
Synaptics Locked Drags Timeout (331): 5000
Synaptics Tap Action (332): 2, 3, 0, 0, 1, 3, 0
Synaptics Click Action (333): 1, 3, 0
Synaptics Circular Scrolling (334): 0
Synaptics Circular Scrolling Distance (335): 0.100000
Synaptics Circular Scrolling Trigger (336): 0
Synaptics Circular Pad (337): 0
Synaptics Palm Detection (338): 1
Synaptics Palm Dimensions (339): 10, 200
Synaptics Coasting Speed (340): 20.000000, 50.000000
Synaptics Pressure Motion (341): 30, 160
Synaptics Pressure Motion Factor (342): 1.000000, 1.000000
Synaptics Resolution Detect (343): 1
Synaptics Grab Event Device (344): 0
Synaptics Gestures (345): 1
Synaptics Capabilities (346): 1, 0, 0, 1, 1, 1, 1
Synaptics Pad Resolution (347): 31, 31
Synaptics Area (348): 0, 0, 0, 0
Synaptics Soft Button Areas (349): 1530, 0, 1676, 0, 0, 0, 0, 0
Synaptics Noise Cancellation (350): 18, 18
Device Product ID (306): 1267, 14
Device Node (305): "/dev/input/event4"
我尝试添加“psmouse.proto=imps”作为内核启动参数，问题解决了，但 TouchPad 却失去了功能（变得迟缓，无法使用两个手指滚动等）。有什么建议吗？
答案1
我以前遇到过这个问题，并且是这样解决的：（它可能已经过时了）
创建（作为 sudo）/usr/lib/X11/xorg.conf.d/60-thinkpad-trackpoint.conf并通过 vim 或 nano 添加：
Section "InputClass"
Identifier "ThinkPad TrackPoint"
MatchProduct "TPPS/2 IBM TrackPoint"
MatchDevicePath "/dev/input/event*"
Option "EmulateWheel" "true"
Option "EmulateWheelButton" "2"
Option "XAxisMapping" "6 7"
Option "YAxisMapping" "4 5"
EndSection
您需要注销或重新启动