The code 04F3 indeed represents the vendor ELAN. It seems I need to dig into the lower level driver (one that talk to the touchd firmware directly) to find out more info.
Btw, I Googled "Linux ELAN touchpad" and found another solution [kernel - ELAN Touchpad not working on Lenovo Thinkbook with Ubuntu 18.04 - Ask Ubuntu](https://askubuntu.com/questions/1205382/elan-touchpad-not- working-on-lenovo-thinkbook-with-ubuntu-18-04). Have you tried it? Can you also show me the result of `sudo acpidump | grep -C3 ELAN`? I'm curious to know if this device's ID has been defined in include/linux/input/elan-i2c-ids.h. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1887190 Title: MSFT Touchpad not working on Lenovo Legion-5 15ARH05 To manage notifications about this bug go to: https://bugs.launchpad.net/pop-os/+bug/1887190/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
