I have a same experience with ESPN from Firefox playing the video (in full screen) of Miami-LSU football game. Screensaver came on once too many times. It shouldn't be happening as it's 18.04 version! It felt like some developer took out the "fix" code out.
** Attachment added: "cpuInfo.txt" https://bugs.launchpad.net/ubuntu/+source/xscreensaver/+bug/1790110/+attachment/5183896/+files/cpuInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1790110 Title: Xscreensaver overrides vlc smplayer and caffeine To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xscreensaver/+bug/1790110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs