Tested on physical hardware with 19.04. The issue is still present but the viaul manifestaton is slightly different. Rather than black flickers it's more of a shading effect that flickers on and off with mouse movement. It can also be caused by enabling the option to extent the magnified contents beyond the bounds of the desktop.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1831140 Title: GNOME Magnifier Flickering when using none-full screen modes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1831140/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs