I can reproduce the issue by unplugging and usb stick! When I plug it in nothing special happens, but when I unplug it the bug appears immediately. The same workaroud (switching VTs) resolves it temporarily.
It does not happen 100% of the time though. It did happen 4 times in a row a few minutes ago. I don't see anything unusual in the log. Here is what I got when unplugging, the first time it triggered the bug: Mar 2 13:48:02 tadzim3 kernel: [48565.861661] usb 2-2: USB disconnect, device number 15 Mar 2 13:48:02 tadzim3 upowerd: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2/2-2:1.0 Mar 2 13:48:02 tadzim3 upowerd: unhandled action 'unbind' on /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2 Mar 2 13:48:02 tadzim3 dbus-daemon: [system] Activating via systemd: service name='org.freedesktop.hostname1' unit='dbus-org.freedesktop.hostname1.service' requested by ':1.1503' (uid=1000 pid=3197 comm="/usr/bin/gnome-shell " label="unconfined") Mar 2 13:48:02 tadzim3 systemd: Starting Hostname Service... Mar 2 13:48:02 tadzim3 dbus-daemon: [system] Successfully activated service 'org.freedesktop.hostname1' Mar 2 13:48:02 tadzim3 systemd: Started Hostname Service. Mar 2 13:48:03 tadzim3 org.gnome.SettingsDaemon.Power.desktop: Error executing command as another user: Not authorized Mar 2 13:48:03 tadzim3 org.gnome.SettingsDaemon.Power.desktop: This incident has been reported. Mar 2 13:48:11 tadzim3 /usr/lib/gdm3/gdm-x-session: (**) Option "fd" "24" Mar 2 13:48:11 tadzim3 /usr/lib/gdm3/gdm-x-session: (II) event2 - Power Button: device removed What happens beginning at 13:48:11, 9 seconds after the USB disconnect, seems to be the VT switch, when I worked around the bug. -- 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/1752709 Title: Left mouse button gets stuck down (in software), usually after suspend/resume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1752709/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : email@example.com Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp