Comment 130 for bug 1722478

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kruisoc (kurisoc) wrote :

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"

(then use sudo update-grub, then reboot)