It's the screensaver kicking in. On my computer, as soon as the app switches to windowed mode, if I stop using the mouse and keyboard the screen will dim to black.
-- fullscreen apps switch to window mode unexpectedly https://bugs.launchpad.net/bugs/239584 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
