Comment # 2 on bug 1089287 from Fabian Vogt

(In reply to Dr. Werner Fink from comment #0)
> The current configuration in /usr/lib/sddm/sddm.conf.d/00-general.conf
> misses the option -keeptty to help the systemd-logind to identify the X
> server on vt7 with its controlling tty

Can this have any unexpected side effects or is it safe to enable it in all
cases?

I don't think sddm sets the controlling terminal on VT switches, so this might
actually break it...