Hmm.. It might be something that's specific to the earlier install. I think i upgraded from 15.10 to 16.04 to 16.10. On a different system (Dell T3420) I installed 16.04 and upgraded to 16.10. That system has 2x 4k screens and shows also the lower resolution of 2560x1440.
I'm gonna try a fresh install on the XPS13. Maybe even a 16.04 install and update that one. I'll keep you posted. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633821 Title: missing resolution after upgrade to 16.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1633821/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs