On booting after a system update, I only get to a login prompt on a tty. I'm seeking help from my phone, which is painful. The lead I'm following is that
sudo s6-svstat /run/service/sddm
shows down (exitcode 0) ...
and running sudo s6-rc -u change sddm
returns:/usr/lib/tmpfiles.d/tmp2-tss-fapi.conf:2: Failed to resolve user 'tss': No such process
Failed to parse ACL "default:group:tss:rwx": Invalid argument. Ignoring
/usr/lib/tmpfiles.d/tmp2-tss-fapi.conf:4: Failed to resolve user 'tss': No such process
Failed to parse ACL "default:group:tss:rwx": Invalid argument. Ignoring
s6-rc: warning: unable to start service tmpfiles-setup: commandexited 65
Just wanted to add that I grep'd ps -ef for sddm and it showed an s6-supervise process (only).
Also, in looking into the Xorg log file, I saw:
systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
But looking into this, it seemed like this might just be an irrelevant message, as others seemed to say it didn't affect anything.