bug#64878: Guix hangs during shutdown with Sway

[danclm]

Hello everyone!

My T420 with Guix (no DE, only SDDM + Elogind + Sway) hangs during shutdown 
after running loginctl poweroff/reboot or /sbin/shutdown /sbin/reboot. It just 
sits there and only resolution is hard poweroff. This happens often.

I reported the issue to the help-guix mailing list and other users are 
experiencing the same behaviour:

https://lists.gnu.org/archive/html/help-guix/2023-07/msg00021.html

You can find my configuration in the link above.
Greetings, Daniele--