Ubuntu
fwupd package

  1. Focal (20.04)
  2. Bug #1886912
  3. Comment #65

Comment 65 for bug 1886912

Revision history for this message
altadeos (altadeos) wrote : Re: DELL M3800 Touchscreen not working after login with fractional scaling.

It seems to be not related only to M3800 laptop but others like HP Spectre too.
Regarding this topic I'm able to have a working touchscreen when I removed fwupd.

https://askubuntu.com/questions/1234975/touchscreen-stops-working-a-few-seconds-after-login-to-gnome-ubuntu-session-ubu

I removed fwupd with the command "sudo apt remove fwupd" and rebooted the computer and now the touchscreen is working again.

Do you need more informations ?