Comment 9 for bug 1826219

Daniel C (djcater) wrote :

Hi Paul, thanks for pointing me to this bug from https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1827791.

Is this also on a Dell XPS 13 9380?

Your comment about Wayland made me curious, as I was using the default Xorg session.

Testing with Wayland on 19.04 I also see the same problem (actually I think it's more prominent with Wayland than it was with Xorg).

I also see lines like this in journalctl -b0:

May 13 21:34:46 daniel-XPS-13-9380 org.gnome.Shell.desktop[1673]: Window manager warning: last_user_time (242191) is greater than comparison timestamp (242190). This most likely represents a buggy client sending inaccurate timestamps in messages such as _NET_ACTIVE_WINDOW. Trying to work around...
May 13 21:34:46 daniel-XPS-13-9380 org.gnome.Shell.desktop[1673]: Window manager warning: W1 appears to be one of the offending windows with a timestamp of 242191. Working around...

And:

May 13 21:41:21 daniel-XPS-13-9380 org.gnome.Shell.desktop[1673]: libinput error: event5 - DELL08AF:00 06CB:76AF Touchpad: kernel bug: Touch jump detected and discarded.
May 13 21:41:21 daniel-XPS-13-9380 org.gnome.Shell.desktop[1673]: See https://wayland.freedesktop.org/libinput/doc/1.12.6/touchpad-jumping-cursors.html for details