我打字时光标一直在跳动，这是突然发生的。它工作正常，但在我更新 Ubuntu 后，这一切都开始了。即使在我输入这个答案时，我也面临着这个问题，我是认真的。我尝试重置灵敏度并已锁定，这些是鼠标和触摸板的设置：
我还安装了调整，这些是我在调整中的设置：
我也读到过某处将光标主题重置回 adwaita 就可以了，但我在光标主题中找不到 adwaita。
我对 Ubuntu 还不熟悉，安装它时，我尝试了很多主题，并再次删除了其中一些。我想可能是因为这个原因，我删除了一些重要的文件夹，但其余的一切都运行正常。我不知道问题到底是什么。我希望将 Ubuntu 重置为初始阶段，再次获取重要文件夹（如果我删除了任何文件夹）。有办法吗？我的笔记本电脑只有 Ubuntu 作为操作系统
结果xinput变成这样：
nerdrishabh@nerdrishabh-Vostro-15-3568:~$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Synaptics TM3253-001 id=12 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=16 [slave pointer (2)]
⎜ ↳ PixArt Dell MS116 USB Optical Mouse id=10 [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: Integrate id=11 [slave keyboard (3)]
↳ Intel HID events id=13 [slave keyboard (3)]
↳ Dell WMI hotkeys id=14 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=15 [slave keyboard (3)]
nerdrishabh@nerdrishabh-Vostro-15-3568:~$
xinput list-props 16 的输出是：
nerdrishabh@nerdrishabh-Vostro-15-3568:~$ xinput list-props 16
Device 'SynPS/2 Synaptics TouchPad':
Device Enabled (142): 1
Coordinate Transformation Matrix (144): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (273): 1
Device Accel Constant Deceleration (274): 2.500000
Device Accel Adaptive Deceleration (275): 1.000000
Device Accel Velocity Scaling (276): 23.851589
Synaptics Edges (300): 1585, 5357, 1445, 4407
Synaptics Finger (301): 25, 30, 0
Synaptics Tap Time (302): 180
Synaptics Tap Move (303): 245
Synaptics Tap Durations (304): 180, 180, 100
Synaptics ClickPad (305): 1
Synaptics Middle Button Timeout (306): 0
Synaptics Two-Finger Pressure (307): 282
Synaptics Two-Finger Width (308): 7
Synaptics Scrolling Distance (309): -111, 111
Synaptics Edge Scrolling (310): 0, 0, 0
Synaptics Two-Finger Scrolling (311): 1, 1
Synaptics Move Speed (312): 1.000000, 1.750000, 0.035868, 0.000000
Synaptics Off (313): 0
Synaptics Locked Drags (314): 0
Synaptics Locked Drags Timeout (315): 5000
Synaptics Tap Action (316): 0, 0, 0, 0, 1, 3, 2
Synaptics Click Action (317): 1, 3, 2
Synaptics Circular Scrolling (318): 0
Synaptics Circular Scrolling Distance (319): 0.100000
Synaptics Circular Scrolling Trigger (320): 0
Synaptics Circular Pad (321): 0
Synaptics Palm Detection (322): 1
Synaptics Palm Dimensions (323): 10, 200
Synaptics Coasting Speed (324): 20.000000, 50.000000
Synaptics Pressure Motion (325): 30, 160
Synaptics Pressure Motion Factor (326): 1.000000, 1.000000
Synaptics Resolution Detect (327): 1
Synaptics Grab Event Device (328): 0
Synaptics Gestures (329): 1
Synaptics Capabilities (330): 1, 0, 0, 1, 1, 1, 1
Synaptics Pad Resolution (331): 44, 42
Synaptics Area (332): 0, 0, 0, 0
Synaptics Soft Button Areas (333): 0, 0, 0, 0, 0, 0, 0, 0
Synaptics Noise Cancellation (334): 27, 27
Device Product ID (266): 2, 7
Device Node (265): "/dev/input/event6"
之前遇到过触摸板不流畅的问题，后来因为要装 synaptics，所以装之前更新了 ubuntu，装完之后问题就来了，应该是这样。
答案1
问题在于synaptics。它的手掌保护很差。用
sudo apt remove 'xserver-xorg-input-synaptics.*'
libinput将以更好的手掌保护来控制触摸板。