Comment # 2 on bug 1142492 from Fabian Vogt

(In reply to Franck Bui from comment #1)
> So yes sddm.service should be improved to handle gracefully such cases,
> therefore reassigning to sddm maintainer.

I opened a PR upstream: https://github.com/sddm/sddm/pull/1184

However, in openSUSE sddm.service is not used by default, as we have
display-manager.service. Which one is used here?