I can confirm this problem on Arch running Chromium 60 or chromium-based browsers (Opera and Vivaldi) under Gnome Wayland session. No problem under X11. I think it's some problem between Chromium and Wayland because the same problem affects the same browsers under KDE Plasma Wayland session.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1709084 Title: Screensaver not suppressed when watching full screen video To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1709084/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs