It looks like you triggered the screen magnifier. Try holding the Windows key and pressing +/- or =/-
Please also run this command to collect more system information: apport-collect 2077825 ** Package changed: xorg (Ubuntu) => plasma-desktop (Ubuntu) ** Changed in: plasma-desktop (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2077825 Title: wrong screen resolution To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plasma-desktop/+bug/2077825/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs