I figured out the problem. Some settings were off, which I was able to fix with gsettings. The offending settings were the text scaling facrtors in org.gnome.dekstop.interface and .com.canonical.Unity.Interface. After getting the settings to correct values (the unity one should be 1 and the gnome one should be whatever your scaling factor is), you should log out and log in again.
I certainly didn't delete anything directly related to these settings, so how this happened is something of a mystery. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1609489 Title: HiDPI scaling broken for (only) one of my users; Ubuntu can't automatically fix it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1609489/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs