Touchpad Cannot Use for Ubuntu 24.04 on Thinkbook 16+ Solution

Linux
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触控板用不了的解决方案
Author

Marcobisky

Published

July 14, 2025

1 Synaptics 配置文件

在 Thinkbook 16+ 2025 上装好 Ubuntu 24.04 后会发现触控板只有右键能用, 不是驱动的问题, 在设置里配置也没有用, 先看看触控板设备的 id 是多少:

xinput list

输出类似:

⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Logitech G304                             id=8    [slave  pointer  (2)]
⎜   ↳ GXTP5100:00 27C6:01E9                     id=9    [slave  pointer  (2)]
⎜   ↳ GXTP5100:00 27C6:01E9                     id=10   [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)]
    ↳ Ideapad extra buttons                     id=11   [slave  keyboard (3)]
    ↳ Intel HID events                          id=12   [slave  keyboard (3)]
    ↳ Intel HID 5 button array                  id=13   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=14   [slave  keyboard (3)]
    ↳ Logitech G304                             id=15   [slave  keyboard (3)]

确认触控板驱动:

xinput list-props 10 | grep -i synaptics

输出类似:

Synaptics Edges (351):  165, 3984, 115, 2032
Synaptics Finger (352): 0, 0, 0
Synaptics Tap Time (353):       180
Synaptics Tap Move (354):       205
Synaptics Tap Durations (355):  180, 180, 100
Synaptics ClickPad (356):       1
Synaptics Middle Button Timeout (357):  0
Synaptics Two-Finger Pressure (358):    2204
Synaptics Two-Finger Width (359):       7
Synaptics Scrolling Distance (360):     -300, -300
Synaptics Edge Scrolling (361): 0, 0, 0
Synaptics Two-Finger Scrolling (362):   1, 1
Synaptics Move Speed (363):     1.000000, 1.666667, 0.042817, 0.000000
Synaptics Off (364):    0
Synaptics Locked Drags (365):   0
Synaptics Locked Drags Timeout (366):   5000
Synaptics Tap Action (367):     2, 3, 0, 0, 1, 3, 2
Synaptics Click Action (368):   1, 3, 0
Synaptics Circular Scrolling (369):     0
Synaptics Circular Scrolling Distance (370):    0.100000
Synaptics Circular Scrolling Trigger (371):     0
Synaptics Circular Pad (372):   0
Synaptics Palm Detection (373): 1
Synaptics Palm Dimensions (374):        10, 200
Synaptics Coasting Speed (375): 20.000000, 50.000000
Synaptics Pressure Motion (376):        234, 1250
Synaptics Pressure Motion Factor (377): 1.000000, 1.000000
Synaptics Resolution Detect (378):      1
Synaptics Grab Event Device (379):      0
Synaptics Gestures (380):       1
Synaptics Capabilities (381):   1, 0, 0, 1, 1, 1, 0
Synaptics Pad Resolution (382): 27, 31
Synaptics Area (383):   0, 0, 0, 0
Synaptics Soft Button Areas (384):      2074, 0, 1760, 0, 0, 0, 0, 0
Synaptics Noise Cancellation (385):     23, 23

查看触控板 (例如 GXTP5100:00 27C6:01E9) 的属性:

xinput list-props "GXTP5100:00 27C6:01E9" | grep -E "(Tapping|Natural|Scrolling|Accel|Click)"

若有多个触控板设备, 则提示:

Warning: There are multiple devices matching 'GXTP5100:00 27C6:01E9'.
To ensure the correct one is selected, please use the device ID, or prefix the
device name with 'pointer:' or 'keyboard:' as appropriate.

unable to find device GXTP5100:00 27C6:01E9

可以分别查看他们的属性 (记得把 id 换成你自己的):

xinput list-props 9  # id = 9
xinput list-props 10 # id = 10

选一个改变其参数, 然后试试触控板能不能用, 比如改 id = 10 的属性:

xinput set-prop 10 "Synaptics Finger" 0 0 0                  # 设置触控板压力灵敏度为超轻触, 改完了试试

这里顺带也改了触控板的方向吧, 不然是反着的:

xinput set-prop 10 "Synaptics Scrolling Distance" -300 -300  # 设置自然/反向滚动 (速度较慢)

但是这样改完了重启电脑后会自动消失, 需要加个配置文件才能永久:

sudo mkdir -p /etc/X11/xorg.conf.d

建立文件 /etc/X11/xorg.conf.d/70-synaptics-touchpad.conf, 加入 (我也顺带改了光标移动速度和 scroll 速度):

70-synaptics-touchpad.conf
Section "InputClass"
    Identifier "touchpad"
    Driver "synaptics"
    MatchIsTouchpad "on"
    MatchDevicePath "/dev/input/event*"
    # Enable tapping
    Option "TapButton1" "1"
    Option "TapButton2" "3"
    Option "TapButton3" "2"
    # Set finger pressure sensitivity (ultra light touch)
    Option "FingerLow" "0"
    Option "FingerHigh" "0"
    # Enable natural/reverse scrolling (slower speed)
    Option "VertScrollDelta" "-300"
    Option "HorizScrollDelta" "-300"
    # Enable two-finger scrolling
    Option "VertTwoFingerScroll" "1"
    Option "HorizTwoFingerScroll" "1"
    # Disable edge scrolling (prefer two-finger)
    Option "VertEdgeScroll" "0"
    Option "HorizEdgeScroll" "0"
    # Enable palm detection
    Option "PalmDetect" "1"
    Option "PalmMinWidth" "10"
    Option "PalmMinZ" "200"
    # Mouse movement speed settings
    Option "MinSpeed" "1.5"
    Option "MaxSpeed" "2.5"
    Option "AccelFactor" "0.042817"
    Option "ConstantDeceleration" "1.5"
EndSection

70-synaptics-touchpad.conf 中的 70 代表优先级, 也可以改成更高的优先级 (比如 30). 各参数作用可自行了解修改.

使其生效:

sudo chmod 644 /etc/X11/xorg.conf.d/70-synaptics-touchpad.conf
sudo systemctl restart gdm3 # 或者重启电脑

2 Optional: 安装 libinput10

libinput10 可以让你用 Mac 手势控制电脑. 参考 libinput 官方说明

注意: 不要按 这里 直接下载编译好的文件, 请自行源码编译! 如果搞爆了, 按 Section 2.2 的方法修复.

2.1 开启 SSH

由于操作可能会导致 GNOME 桌面环境崩溃, 先确保 SSH 已经开启, 以便后续可以远程操作:

sudo apt update
sudo apt install openssh-server
sudo systemctl status ssh # check if SSH is running, if not, start it:
sudo systemctl start ssh  # If use `sudo systemctl enable ssh`, SSH will start automatically on boot

获取 IP:

hostname -I

2.2 恢复方法

如果:

A problem has occurred and the system can’t recover

别慌, 进入 TTY: Ctrl + Alt + F3 (或 F4/F5), 输入用户名和密码登录 (如果你可以 SSH 上去也可以远程), 然后:

sudo apt-get update
sudo apt-get install --reinstall libinput10

# 删除你自己 cp 的错误文件（如果还在）
sudo rm -f /usr/lib/x86_64-linux-gnu/libinput.so.10.14.0

# 删除错误链接（如果它仍然指向 10.14.0）
sudo rm -f /usr/lib/x86_64-linux-gnu/libinput.so.10

# 手动建立正确的符号链接
sudo ln -s libinput.so.10.13.0 /usr/lib/x86_64-linux-gnu/libinput.so.10

# 刷新链接缓存
sudo ldconfig

ls -l /usr/lib/x86_64-linux-gnu/libinput.so.10* # 确认链接是否正确

sudo reboot