"i8042.nopnp=1 pci=nocrs" does not cure the problem, it only allows the touchpad to be recognized as mouse pointer. In *buntu, under "mouse and touchpads" it is shown as a mouse and no hint of a touchpad. So only right and left click plus cursor movement will work, nothing else.
There are some strange kernel panics in the log file that might be related to this problem, please see attachment. (panics will occur with 5.4, 5.6 and 5.7.7) ** Attachment added: "v15.dmesg" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881322/+attachment/5389383/+files/v15.dmesg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1881322 Title: Touchpad not detected in 'Lenovo V15-IIL model 82C5' after installing Ubuntu 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881322/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
