The problem here is that the ID of the Elan touchpad is not in the white list of the driver. For a patch, see https://lore.kernel.org/linux- input/20191202010253.GO248138@dtor- ws/t/#m008d36e30f2711c0e3e33d396a444dd2ee98f8b1
So far, I could not find a tree carrying this change. So you need to patch some kernel source to make it work. With the patch applied, no need to modify the DSDT table nor do any other change. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861610 Title: 'Elan touchpad' not detected in 'Ubuntu 19.04' on 'Lenovo ThinkBook 15 IIL' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861610/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
