如何在Ubuntu 17.04中修复手掌检测
自Ubuntu 16.04以来，我遇到了这个问题。 手掌检测根本不起作用。 我试过运行本文中提到的命令，但没有效果。
输出xinput ：
⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ DLLC6B2:00 06CB:75BF Touchpad id=11 [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)] ↳ Power Button id=8 [slave keyboard (3)] ↳ Sleep Button id=9 [slave keyboard (3)] ↳ Integrated_Webcam_HD id=10 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=12 [slave keyboard (3)] ↳ Dell WMI hotkeys id=14 [slave keyboard (3)] ↳ DELL Wireless hotkeys id=15 [slave keyboard (3)]
`xinput list-props 11的输出：
Device 'DLLC6B2:00 06CB:75BF Touchpad': Device Enabled (140): 1 Coordinate Transformation Matrix (142): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000 Device Accel Profile (267): 1 Device Accel Constant Deceleration (268): 2.500000 Device Accel Adaptive Deceleration (269): 1.000000 Device Accel Velocity Scaling (270): 12.500000 Synaptics Edges (271): 49, 1180, 50, 879 Synaptics Finger (272): 25, 30, 0 Synaptics Tap Time (273): 180 Synaptics Tap Move (274): 67 Synaptics Tap Durations (275): 180, 180, 100 Synaptics ClickPad (276): 1 Synaptics Middle Button Timeout (277): 0 Synaptics Two-Finger Pressure (278): 282 Synaptics Two-Finger Width (279): 7 Synaptics Scrolling Distance (280): -30, -30 Synaptics Edge Scrolling (281): 0, 0, 0 Synaptics Two-Finger Scrolling (282): 1, 1 Synaptics Move Speed (283): 1.000000, 1.750000, 0.129870, 0.000000 Synaptics Off (284): 0 Synaptics Locked Drags (285): 0 Synaptics Locked Drags Timeout (286): 5000 Synaptics Tap Action (287): 2, 3, 0, 0, 1, 3, 0 Synaptics Click Action (288): 1, 3, 0 Synaptics Circular Scrolling (289): 0 Synaptics Circular Scrolling Distance (290): 0.100000 Synaptics Circular Scrolling Trigger (291): 0 Synaptics Circular Pad (292): 0 Synaptics Palm Detection (293): 1 Synaptics Palm Dimensions (294): 5, 5 Synaptics Coasting Speed (295): 20.000000, 50.000000 Synaptics Pressure Motion (296): 30, 160 Synaptics Pressure Motion Factor (297): 1.000000, 1.000000 Synaptics Resolution Detect (298): 1 Synaptics Grab Event Device (299): 0 Synaptics Gestures (300): 1 Synaptics Capabilities (301): 1, 0, 0, 1, 1, 0, 0 Synaptics Pad Resolution (302): 12, 12 Synaptics Area (303): 0, 0, 0, 0 Synaptics Soft Button Areas (304): 614, 0, 761, 0, 0, 0, 0, 0 Synaptics Noise Cancellation (305): 7, 7 Device Product ID (264): 1739, 30143 Device Node (263): "/dev/input/event10"
/usr/share/X11/xorg.conf.d/40-libinput.conf内容：
# Match on all types of devices but tablet devices and joysticks Section "InputClass" Identifier "libinput pointer catchall" MatchIsPointer "on" MatchDevicePath "/dev/input/event*" Driver "libinput" EndSection Section "InputClass" Identifier "libinput keyboard catchall" MatchIsKeyboard "on" MatchDevicePath "/dev/input/event*" Driver "libinput" EndSection Section "InputClass" Identifier "libinput touchpad catchall" MatchIsTouchpad "on" MatchDevicePath "/dev/input/event*" Driver "libinput" EndSection Section "InputClass" Identifier "libinput touchscreen catchall" MatchIsTouchscreen "on" MatchDevicePath "/dev/input/event*" Driver "libinput" EndSection Section "InputClass" Identifier "libinput tablet catchall" MatchIsTablet "on" MatchDevicePath "/dev/input/event*" Driver "libinput" EndSection
Synaptics用户空间驱动程序在手掌检测方面不是很好。
在Ubuntu 17.04中， libinput是默认的用户空间驱动程序。 由于某种原因，它不是合适的。
在终端中运行
sudo apt install xserver-xorg-input-libinput
安装它。 然后重启。
默认情况下可能会禁用点击。 编辑/usr/share/X11/xorg.conf.d/40-libinput.conf以这种方式：
# Match on all types of devices but tablet devices and joysticks Section "InputClass" Identifier "libinput pointer catchall" MatchIsPointer "on" MatchDevicePath "/dev/input/event*" Driver "libinput" EndSection Section "InputClass" Identifier "libinput keyboard catchall" MatchIsKeyboard "on" MatchDevicePath "/dev/input/event*" Driver "libinput" EndSection Section "InputClass" Identifier "libinput touchpad catchall" MatchIsTouchpad "on" MatchDevicePath "/dev/input/event*" Driver "libinput" Option "Tapping" "True" Option "NaturalScrolling" "True" EndSection Section "InputClass" Identifier "libinput touchscreen catchall" MatchIsTouchscreen "on" MatchDevicePath "/dev/input/event*" Driver "libinput" EndSection Section "InputClass" Identifier "libinput tablet catchall" MatchIsTablet "on" MatchDevicePath "/dev/input/event*" Driver "libinput" EndSection
启用点击和自然滚动。