maybe unrelated to your issue, but my touchpad stopped working properly after using a GRUB theme installation script, on a Clevo NV41MZ, Ubuntu 18 to 22
what solved the issue for me was updating the /etc/default/grub file by changing this line :
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_os_name=Linux acpi_osi="
to this:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
maybe unrelated to your issue, but my touchpad stopped working properly after using a GRUB theme installation script, on a Clevo NV41MZ, Ubuntu 18 to 22
what solved the issue for me was updating the /etc/default/grub file by changing this line : LINUX_DEFAULT= "quiet splash acpi_os_name=Linux acpi_osi=" LINUX_DEFAULT= "quiet splash"
GRUB_CMDLINE_
to this:
GRUB_CMDLINE_
(then use sudo update-grub, then reboot)