I'm afraid, the problem can be in some related QT or KDE library: I've tried to downgrade sddm and sddm-theme-breeze to the versions from zesty (0.13.0-1ubuntu5 and 4:5.9.4-0ubuntu1 correspondently), but the problem is still there.
KDE version 4:5.10.5-0ubuntu1, QT version 5.9.1+dfsg-5ubuntu2. PS The user icons are also invisible. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1717608 Title: Invisible text (fonts) in SDDM login screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sddm/+bug/1717608/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
