Ubuntu 22.04触摸板专属设置缺失且双指滚动失效求助

各位好，最近我碰到个挺闹心的问题：笔记本的双指滚动突然用不了了。之前可能更了些小补丁，但都不是专门针对触控设备的。对了，我这是刚重装的Ubuntu系统——之前因为别的无关问题，索性清盘重装了个干净的环境。

在排查这个滚动问题的时候，我发现系统设置里的「鼠标和触摸板」选项卡，居然没了之前见过的触摸板专属设置项！我记得以前明明能分开调鼠标和触摸板的设置，现在完全找不到了。

我已经试过下面这两条命令修复控制中心，但是没用：

sudo apt remove gnome-control-center
sudo apt-get install gnome-control-center

另外我还找了个好几年前的类似问题，照着里面的答案操作了一遍，也没解决——毕竟那时候的Ubuntu版本和现在差挺多，可能情况变了吧。

如果有人能解决双指滚动这个核心问题，那真的太感谢了！

下面是我运行xinput和xinput list-props 19的输出，我的触摸板是ID为19的「ELAN0406:00 04F3:30A6 Mouse」：

$ xinput
⎡ Virtual core pointer                      id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Razer Razer Blade Keyboard                id=15   [slave  pointer  (2)]
⎜   ↳ Razer Razer Blade                         id=16   [slave  pointer  (2)]
⎜   ↳ ELAN0406:00 04F3:30A6 Mouse               id=19   [slave  pointer  (2)]
⎜   ↳ USB Gaming Mouse Consumer Control         id=11   [slave  pointer  (2)]
⎜   ↳ USB Gaming Mouse                          id=21   [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)]
↳ Sleep Button                              id=10   [slave  keyboard (3)]
↳ Razer Razer Blade                         id=14   [slave  keyboard (3)]
↳ Integrated RGB Camera: Integrat           id=17   [slave  keyboard (3)]
↳ Integrated RGB Camera: Integrat           id=18   [slave  keyboard (3)]
↳ Intel HID events                          id=20   [slave  keyboard (3)]
↳ Razer Razer Blade Keyboard                id=22   [slave  keyboard (3)]
↳ USB Gaming Mouse Consumer Control         id=12   [slave  keyboard (3)]
↳ USB Gaming Mouse                          id=13   [slave  keyboard (3)]

$ xinput list-props 19
Device 'ELAN0406:00 04F3:30A6 Mouse':
Device Enabled (204):   1
Coordinate Transformation Matrix (206): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
libinput Natural Scrolling Enabled (339):   0
libinput Natural Scrolling Enabled Default (340):   0
libinput Scroll Methods Available (341):    0, 0, 1
libinput Scroll Method Enabled (342):   0, 0, 1
libinput Scroll Method Enabled Default (343):   0, 0, 1
libinput Button Scrolling Button (344): 3
libinput Button Scrolling Button Default (345): 3
libinput Button Scrolling Button Lock Enabled (346):    0
libinput Button Scrolling Button Lock Enabled Default (347):    0
libinput Accel Speed (350): 0.000000
libinput Accel Speed Default (351): 0.000000
libinput Accel Profiles Available (352):    1, 1
libinput Accel Profile Enabled (353):   1, 0
libinput Accel Profile Enabled Default (354):   1, 0
libinput Left Handed Enabled (355): 0
libinput Left Handed Enabled Default (356): 0
libinput Send Events Modes Available (324): 1, 0
libinput Send Events Mode Enabled (325):    0, 0
libinput Send Events Mode Enabled Default (326):    0, 0
Device Node (327):  "/dev/input/event4"
Device Product ID (328):    1267, 12454
libinput Drag Lock Buttons (357):   <no items>
libinput Horizontal Scroll Enabled (358):   1
libinput Scrolling Pixel Distance (359):    15
libinput Scrolling Pixel Distance Default (360):    15
libinput High Resolution Wheel Scroll Enabled (361):    1

提前谢谢大家的帮助！

备注：内容来源于stack exchange，提问作者Duncan