Ubuntu 20.04（内核5.15.0-92-generic）下联想Y9000P触控板无法工作求助

各位大佬好！我刚在联想Y9000P上装了Ubuntu 20.04，结果触控板完全没法用，但在Windows系统下它明明是正常工作的，折腾了好几个方法都没进展，实在没头绪了，来请教大家！

首先我试了xinput list命令查看输入设备，结果里完全找不到和触控板相关的条目：

$ xinput list

⎡ Virtual core pointer                      id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ SINO WEALTH Legion M5 Wireless Gaming Mouse_2.4G  id=10   [slave  pointer  (2)]
⎜   ↳ SINO WEALTH Legion M5 Wireless Gaming Mouse_2.4G Keyboard id=11   [slave  pointer  (2)]
⎜   ↳ ITE Tech. Inc. ITE Device(8910) Keyboard  id=12   [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)]
    ↳ Integrated Camera: Integrated C           id=9    [slave  keyboard (3)]
    ↳ ITE Tech. Inc. ITE Device(8910) Wireless Radio Control    id=13   [slave  keyboard (3)]
    ↳ Ideapad extra buttons                     id=14   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=15   [slave  keyboard (3)]
    ↳ SINO WEALTH Legion M5 Wireless Gaming Mouse_2.4G Keyboard id=16   [slave  keyboard (3)]
    ↳ ITE Tech. Inc. ITE Device(8910) Keyboard  id=17   [slave  keyboard (3)]

之后我又尝试排查I2C设备，结果也是一无所获：

$ i2cdetect  -l

$ ls /dev/i2c*
ls: cannot access '/dev/i2c*': No such file or directory

真的搞不懂问题出在哪了QAQ，有没有大佬能给点思路或者解决办法呀？

备注：内容来源于stack exchange，提问作者Yufei Li