As it's not clear from the description, reproducing this requires adding the overlay PPA as a software source to a vivid desktop, then installing ubuntu-system-settings, which in turn will pull in all the required Qt bits.
Also, for reference see bug #1480877 for the gory details. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1523975 Title: [desktop] system-settings crashes on startup with 5.4.1+dfsg- 2ubuntu11~vivid1 To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1523975/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs