Thanks for the bug report. I would usually recommend trying MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0 to fix this but your logs seem to suggest that mode is already active.
Please: 1. Try disabling these extensions in case they're having some effect: 'impatie...@gfxmonk.net', 'clipboard-indica...@dieg0js.github.io', 'espre...@coadmunkee.github.com', 'x11gestu...@joseexposito.github.io' 2. Try a USB mouse and confirm there is no such lag. 3. Report your findings to libinput at: https://gitlab.freedesktop.org/libinput/libinput/-/issues ** Package changed: gnome-shell (Ubuntu) => mutter (Ubuntu) ** Summary changed: - 200% scaling on wayland touchpad feels laggy + 200% scaling on wayland touchpad feels laggy on X1 Carbon 9th ** Also affects: libinput (Ubuntu) Importance: Undecided Status: New ** Changed in: libinput (Ubuntu) Status: New => Incomplete ** Changed in: mutter (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libinput in Ubuntu. https://bugs.launchpad.net/bugs/2022369 Title: 200% scaling on wayland touchpad feels laggy on X1 Carbon 9th To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libinput/+bug/2022369/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp