OK, if you have successfully downgraded mutter then it looks like this problem existed before the introduction of xrandr-scaling. So that's good. But just to verify, please run:
dpkg -l | grep mutter And send us the output. ** Also affects: vlc (Ubuntu) Importance: Undecided Status: New ** Also affects: qtbase-opensource-src (Ubuntu) Importance: Undecided Status: New ** Changed in: qtbase-opensource-src (Ubuntu) Status: New => Incomplete ** Changed in: vlc (Ubuntu) Status: New => Incomplete ** Tags added: hidpi multimonitor -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1824753 Title: When I pass the Qt application to the secondary monitor the characters of the application increase To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1824753/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs