Pointer unresponsive despite "Connection established" message & workaround

[rwuwon]

Under Gnome's GDM login manager (gdm3), xmouse will stop working if you log out of your desktop environment (e.g., Gnome) or window manager (e.g., i3wm) and back in again, despite an apparently successful connection being reported.

A quick workaround without rebooting and waiting for your system to start up again is to first close all running programs, then run sudo systemctl restart gdm.service (repeat: close all running programs first before running this!).

After that, xmouse should immediately start to work again without any further interaction.

[rwuwon]

After playing around with graphics drivers, it appears this issue appears to only occur when using Nvidia's binary drivers (in my case, from Debian's non-free repo). It doesn't happen when using nouveau drivers (even when switching between i3 under X11 and Gnome under Wayland).

The above workaround however might still remain useful for those stuck using Nvidia binaries.