如何在 Lenovo ThinkPad e531 上使用 trackpoint 但禁用触摸板

Question

我有一台联想 ThinkPad e531 笔记本电脑。该模型具有触摸板和轨迹点。我想使用 Trackpoint，因为我在以前的笔记本电脑上已经习惯了它，但我也想禁用触摸板，以防止意外触摸它。

问题是，e531 上没有专用的轨迹点按钮。

这是e530型号的图片：

您可以看到它在触摸板上方有一个单独的按钮，您可以在使用轨迹点时使用它。

这是我的模型（e531）的图片：

如您所见，没有按钮。只有触摸板。

我可以禁用触摸板（在System Settings > Mouse & Touchpad 中）并使用轨迹点来移动鼠标指针，但是无法点击。正如您可能想象的那样，这不是很有用。

我在想的是，应该有一种方法可以禁用触摸板的鼠标移动功能，但仍保持可点击状态，这样我就可以将其用作触控板的鼠标按钮。我的问题是，如何做到这一点。

我认为它可以通过该xinput实用程序实现，但由于我对它不是很熟悉，我不知道如何实现。任何人都可以在这里帮助我，或者至少为我指明正确的方向？

这是xinput我机器上的输出：

~ > xinput
? Virtual core pointer                      id=2    [master pointer  (3)]
?   ? Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
?   ? SynPS/2 Synaptics TouchPad                id=12   [slave  pointer  (2)]
?   ? TPPS/2 IBM TrackPoint                     id=14   [slave  pointer  (2)]
?   ? Logitech Unifying Device. Wireless PID:1025   id=15   [slave  pointer  (2)]
? Virtual core keyboard                     id=3    [master keyboard (2)]
    ? Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ? Power Button                              id=6    [slave  keyboard (3)]
    ? Video Bus                                 id=7    [slave  keyboard (3)]
    ? Video Bus                                 id=8    [slave  keyboard (3)]
    ? Power Button                              id=9    [slave  keyboard (3)]
    ? Integrated Camera                         id=10   [slave  keyboard (3)]
    ? AT Translated Set 2 keyboard              id=11   [slave  keyboard (3)]
    ? ThinkPad Extra Buttons                    id=13   [slave  keyboard (3)]

这是 TrackPoint（设备 14）属性的列表：

~ > xinput --list-props 14
Device 'TPPS/2 IBM TrackPoint':
        Device Enabled (133):   1
    Coordinate Transformation Matrix (135): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
    Device Accel Profile (256): 0
    Device Accel Constant Deceleration (257):   1.000000
    Device Accel Adaptive Deceleration (258):   1.000000
    Device Accel Velocity Scaling (259):    10.000000
    Device Product ID (250):    2, 10
    Device Node (251):  "/dev/input/event13"
    Evdev Axis Inversion (404): 0, 0
    Evdev Axes Swap (406):  0
    Axis Labels (407):  "Rel X" (143), "Rel Y" (144)
    Button Labels (408):    "Button Left" (136), "Button Middle" (137), "Button Right" (138), "Button Wheel Up" (139), "Button Wheel Down" (140), "Button Horiz Wheel Left" (141), "Button Horiz Wheel Right" (142)
    Evdev Middle Button Emulation (409):    0
    Evdev Middle Button Timeout (410):  50
    Evdev Third Button Emulation (411): 0
    Evdev Third Button Emulation Timeout (412): 1000
    Evdev Third Button Emulation Button (413):  3
    Evdev Third Button Emulation Threshold (414):   20
    Evdev Wheel Emulation (415):    1
    Evdev Wheel Emulation Axes (416):   6, 7, 4, 5
    Evdev Wheel Emulation Inertia (417):    10
    Evdev Wheel Emulation Timeout (418):    200
    Evdev Wheel Emulation Button (419): 2
    Evdev Drag Lock Buttons (420):  0

这是触摸板（设备 12）属性的列表：

~ > xinput --list-props 12
Device 'SynPS/2 Synaptics TouchPad':
    Device Enabled (133):   1
    Coordinate Transformation Matrix (135): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
    Device Accel Profile (256): 1
    Device Accel Constant Deceleration (257):   2.500000
    Device Accel Adaptive Deceleration (258):   1.000000
    Device Accel Velocity Scaling (259):    12.500000
    Synaptics Edges (260):  1726, 4858, 1577, 3665
    Synaptics Finger (261): 25, 30, 256
    Synaptics Tap Time (262):   180
    Synaptics Tap Move (263):   192
    Synaptics Tap Durations (264):  180, 180, 100
    Synaptics ClickPad (265):   1
    Synaptics Tap FastTap (266):    0
    Synaptics Middle Button Timeout (267):  0
    Synaptics Two-Finger Pressure (268):    282
    Synaptics Two-Finger Width (269):   7
    Synaptics Scrolling Distance (270): 87, 87
    Synaptics Edge Scrolling (271): 0, 0, 0
    Synaptics Two-Finger Scrolling (272):   1, 0
    Synaptics Move Speed (273): 1.000000, 1.750000, 0.045725, 40.000000
    Synaptics Edge Motion Pressure (274):   30, 160
    Synaptics Edge Motion Speed (275):  1, 349
    Synaptics Edge Motion Always (276): 0
    Synaptics Off (277):    0
    Synaptics Locked Drags (278):   0
    Synaptics Locked Drags Timeout (279):   5000
    Synaptics Tap Action (280): 2, 3, 0, 0, 1, 3, 0
    Synaptics Click Action (281):   1, 3, 0
    Synaptics Circular Scrolling (282): 0
    Synaptics Circular Scrolling Distance (283):    0.100000
    Synaptics Circular Scrolling Trigger (284): 0
    Synaptics Circular Pad (285):   0
    Synaptics Palm Detection (286): 0
    Synaptics Palm Dimensions (287):    10, 200
    Synaptics Coasting Speed (288): 20.000000, 50.000000
    Synaptics Pressure Motion (289):    30, 160
    Synaptics Pressure Motion Factor (290): 1.000000, 1.000000
    Synaptics Resolution Detect (291):  1
    Synaptics Grab Event Device (292):  1
    Synaptics Gestures (293):   1
    Synaptics Capabilities (294):   1, 0, 0, 1, 1, 1, 1
    Synaptics Pad Resolution (295): 42, 42
    Synaptics Area (296):   0, 0, 0, 0
    Synaptics Soft Button Areas (297):  3292, 0, 3397, 0, 0, 0, 0, 0
    Synaptics Noise Cancellation (298): 8, 8
    Device Product ID (250):    2, 7
    Device Node (251):  "/dev/input/event6"

Answer 1

来自@thom 评论的总结，我这样做是为了让它工作：

1. 打开文件/usr/share/X11/xorg.conf.d/50-synaptics.conf进行编辑。
2. 找出Section "InputClass"以下哪一行是Identifier "Default clickpad buttons"。
3. SoftButtonAreasto values 的编辑选项64% 0 1 42% 36% 64% 1 42%，这是右侧和中间按钮的大小。

4. 启用选项AreaBottomEdge并将值更改为1，这将禁用触摸板移动。

   如果一切顺利，你的班级应该是这样的：

   Section "InputClass"
       Identifier "Default clickpad buttons"
       MatchDriver "synaptics"
       Option "SoftButtonAreas" "64% 0 1 42% 36% 64% 1 42%"
       Option "AreaBottomEdge" "1"
   EndSection
   

5. 保存文件并重新登录。

我使用 S440 顺便说一句，但我认为这应该适用于所有使用无按钮触摸板的型号。