You might want to try passing the various i8042 controller module linux parameters (i8042.nomux=1, i8042.kbdreset=1, i8042.reset=1) and also i8042.nopnp as told by your dmesg:
[ 0.602905] i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp note that the AUX port is the mouse. You can set then via grub by setting GRUB_CMDLINE_LINUX="<your parameters>" in /etc/default/grub and running update-grub as root. Or plain edit enter then in the grub editor at boot. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1912880 Title: Touchpad (MSFT) not detected on Lenovo Ideapad Flex 5 AMD To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.8/+bug/1912880/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs