我对 Ubuntu 还很陌生，现在遇到了一个令人困扰的问题。
启动后一切都正常。但过了一段时间后，触摸板就不再工作了。只有重启才能解决问题。这很烦人 -.-
USB 鼠标始终可以工作，只有触摸板可以工作。
我添加了以下代码以便在启动后执行：syndaemon -i 1 -K -d因为设置中没有“键入时禁用触摸”选项。
我的笔记本电脑是 HP355（Ubuntu 16.04LTS）。
输出xinput：
⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ 2.4G Receiver id=11 [slave pointer (2)] ⎜ ↳ 2.4G Receiver id=12 [slave pointer (2)] ⎜ ↳ SynPS/2 Synaptics TouchPad 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)] ↳ 2.4G Receiver id=10 [slave keyboard (3)] ↳ HP Truevision HD id=13 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=14 [slave keyboard (3)] ↳ HP Wireless hotkeys id=16 [slave keyboard (3)] ↳ HP WMI hotkeys id=17 [slave keyboard (3)]
输出xinput list-props 15：
Device 'SynPS/2 Synaptics TouchPad': Device Enabled (143): 1 Coordinate Transformation Matrix (145): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000 Device Accel Profile (275): 1 Device Accel Constant Deceleration (276): 2.500000 Device Accel Adaptive Deceleration (277): 1.000000 Device Accel Velocity Scaling (278): 12.500000 Synaptics Edges (299): 1534, 5402, 1259, 4613 Synaptics Finger (300): 25, 30, 0 Synaptics Tap Time (301): 180 Synaptics Tap Move (302): 261 Synaptics Tap Durations (303): 180, 100, 100 Synaptics ClickPad (304): 0 Synaptics Middle Button Timeout (305): 75 Synaptics Two-Finger Pressure (306): 282 Synaptics Two-Finger Width (307): 7 Synaptics Scrolling Distance (308): 119, 119 Synaptics Edge Scrolling (309): 0, 0, 0 Synaptics Two-Finger Scrolling (310): 1, 1 Synaptics Move Speed (311): 1.000000, 1.750000, 0.033608, 0.000000 Synaptics Off (312): 1 Synaptics Locked Drags (313): 0 Synaptics Locked Drags Timeout (314): 5000 Synaptics Tap Action (315): 2, 3, 0, 0, 1, 3, 0 Synaptics Click Action (316): 1, 1, 0 Synaptics Circular Scrolling (317): 0 Synaptics Circular Scrolling Distance (318): 0.100000 Synaptics Circular Scrolling Trigger (319): 0 Synaptics Circular Pad (320): 0 Synaptics Palm Detection (321): 0 Synaptics Palm Dimensions (322): 10, 200 Synaptics Coasting Speed (323): 20.000000, 50.000000 Synaptics Pressure Motion (324): 30, 160 Synaptics Pressure Motion Factor (325): 1.000000, 1.000000 Synaptics Resolution Detect (326): 1 Synaptics Grab Event Device (327): 0 Synaptics Gestures (328): 1 Synaptics Capabilities (329): 1, 0, 1, 1, 1, 1, 1 Synaptics Pad Resolution (330): 80, 46 Synaptics Area (331): 0, 0, 0, 0 Synaptics Noise Cancellation (332): 8, 8 Device Product ID (264): 2, 7 Device Node (265): "/dev/input/event12"
答案1
问题是您添加了syndaemon -i 1 -K -d。
如果同时启用“键入时禁用触摸板”选项，则两个 syndaemon 实例将同时运行。这最终会导致触摸板冻结。
禁用该选项或删除 syndaemon 命令。