We cannot consider this a bug as you clearly messed up with the configs. You can find the config at org.gnome.desktop.interface scaling-factor (set to 2.0), text-scaling-factor (set to 1.0) and com.ubuntu.user- interface (scale-factor) but you can just use the control center, display panel, to change it.
** Changed in: unity (Ubuntu) Status: New => Invalid -- 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