我找不到降低运行 ubuntu 16.10 的 HP spectre 笔记本电脑触摸板灵敏度的方法。更改内置“鼠标和触摸板”设置中的设置根本不起作用 - 当我更改鼠标或触摸板下的任何设置时，实际上什么都没有发生。
我做了一些研究，发现我可能需要调整 x.org 设置才能更改触摸板设置（顺便说一句，这似乎非常荒谬，但无论如何）。因此，我尝试了解 xinput.. 但所有指南都提到了我找不到的设置.. 即与灵敏度或指针速度相关的设置。
作为参考，这是我的触摸板的 xinput --watch-props 的输出：
$ xinput --watch-props 15
Device 'SynPS/2 Synaptics TouchPad':
Device Enabled (139): 1
Coordinate Transformation Matrix (141): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
libinput Tapping Enabled (279): 1
libinput Tapping Enabled Default (280): 0
libinput Tapping Drag Enabled (281): 1
libinput Tapping Drag Enabled Default (282): 1
libinput Tapping Drag Lock Enabled (283): 0
libinput Tapping Drag Lock Enabled Default (284): 0
libinput Accel Speed (285): 1.000000
libinput Accel Speed Default (286): 0.000000
libinput Natural Scrolling Enabled (287): 0
libinput Natural Scrolling Enabled Default (288): 0
libinput Send Events Modes Available (259): 1, 1
libinput Send Events Mode Enabled (260): 0, 0
libinput Send Events Mode Enabled Default (261): 0, 0
libinput Left Handed Enabled (289): 0
libinput Left Handed Enabled Default (290): 0
libinput Scroll Methods Available (291): 1, 1, 0
libinput Scroll Method Enabled (292): 1, 0, 0
libinput Scroll Method Enabled Default (293): 1, 0, 0
libinput Click Methods Available (294): 1, 1
libinput Click Method Enabled (295): 1, 0
libinput Click Method Enabled Default (296): 1, 0
libinput Middle Emulation Enabled (297): 1
libinput Middle Emulation Enabled Default (298): 0
libinput Disable While Typing Enabled (299): 1
libinput Disable While Typing Enabled Default (300): 1
Device Node (262): "/dev/input/event6"
Device Product ID (263): 2, 7
libinput Drag Lock Buttons (301): <no items>
libinput Horizonal Scroll Enabled (264): 1
我注定只能在这台笔记本电脑上使用 ubuntu 时拥有糟糕的触摸板体验吗？不管怎么说，触摸板非常灵敏，不到一英寸的微小移动就能使光标移过整个屏幕。
这是 xset -q 的输出：
$ xset q
Keyboard Control:
auto repeat: on key click percent: 0 LED mask: 00000000
XKB indicators:
00: Caps Lock: off 01: Num Lock: off 02: Scroll Lock: off
03: Compose: off 04: Kana: off 05: Sleep: off
06: Suspend: off 07: Mute: off 08: Misc: off
09: Mail: off 10: Charging: off 11: Shift Lock: off
12: Group 2: off 13: Mouse Keys: off
auto repeat delay: 500 repeat rate: 33
auto repeating keys: 00ffffffdffffbbf
fadfffefffedffff
9fffffffffffffff
fff7ffffffffffff
bell percent: 50 bell pitch: 400 bell duration: 100
Pointer Control:
acceleration: 1/1 threshold: 6
Screen Saver:
prefer blanking: yes allow exposures: yes
timeout: 0 cycle: 0
Colors:
default colormap: 0x20 BlackPixel: 0x0 WhitePixel: 0xffffff
Font Path:
/usr/share/fonts/X11/misc,/usr/share/fonts/X11/100dpi/:unscaled,/usr/share/fonts/X11/Type1,/usr/share/fonts/X11/100dpi,built-ins
DPMS (Energy Star):
Standby: 0 Suspend: 0 Off: 0
DPMS is Enabled
Monitor is On
答案1
对于我的 Spectre 13，以下设置使触摸板可用：
xinput set-prop 10 'Synaptics Off' 0
xinput set-prop 10 "Synaptics Finger" 50 50 255
xinput set-prop 10 "Synaptics Noise Cancellation" 40 40
xinput set-prop 10 "Synaptics Palm Detection" 1
xinput set-prop 10 "Synaptics Gestures" 0