Comment # 36 on bug 1151290 from Fabian Vogt

@sndirsch: The sddm submission got initially declined because we have
udev/logind taking care of this. AFAICT by looking at the .changes and bug
1080742, nvidia-logind-acl-trick.conf is supposed to take care of this.

So in this case, maybe something went wrong with sddm and logind.

For now it's IMO ok as GDM does the same and so there's no reason to not allow
sddm to do it too, but if there's a more general fix that's obviously better.