There is an issue with sddm conflicting with kmscon on startup, when if you don't log-in quickly enough, kmscon overtakes sddm and you have to reboot after that.
The way to avoid it is to add kmscon to Conflicts= and After= sections of sddm.service file. See the idea here how it's done in plasma-login-manager: https://invent.kde.org/plasma/plasma-login-manager/-/tree/master/services/plasmalogin.service.in?ref_type=heads Or here if invent is too slow to load: https://github.com/KDE/plasma-login-manager/blob/master/services/plasmalogin.service.in Attaching a patch that fixes the issue at least for me. May be this could be good to add to Debian's packaged sddm for now too, until plasma-login-manager is available to help those who want to use kmscon with better login experience. Thank you! Shmerl.
--- a/usr/lib/systemd/system/sddm.service +++ b/usr/lib/systemd/system/sddm.service @@ -2,8 +2,8 @@ Description=Simple Desktop Display Manager Documentation=man:sddm(1) man:sddm.conf(5) # Change this if you configure sddm to start in a different tty [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] After=systemd-user-sessions.service systemd-logind.service
