Just have sent info from the second host (Intel+NVidia; more prone to the issue). Will do it for the first host in a few hours.
Please notice that apport-collect is somewhat broken - 1) it didn't request dependence on python-qt5 but needs it for run time; 2) it just created a dialog window "Text. Yes? No?", i.e. without real question. I had to blindly answer "yes". -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1749150 Title: Spontaneous single window freezing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1749150/+subscriptions -- ubuntu-bugs mailing list email@example.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs