This workaround is no longer working when upgraded to 22.04. I have added all the details on ask ubuntu and ubuntu forums:
https://askubuntu.com/questions/1402796/touch-pad-and-touch-screen-are-not-working-after-upgrading-to-ubuntu-22-04
https://ubuntuforums.org/showthread.php?t=2474206&p=14092022#post14092022
This workaround is no longer working when upgraded to 22.04. I have added all the details on ask ubuntu and ubuntu forums:
https:/ /askubuntu. com/questions/ 1402796/ touch-pad- and-touch- screen- are-not- working- after-upgrading -to-ubuntu- 22-04
https:/ /ubuntuforums. org/showthread. php?t=2474206& p=14092022# post14092022