The behaviour is different in unity7 and gnome-shell. In unity7 screen blanking is disabled during video playback. Tested on the same machine with same settings.
On unity7 I did the following test: 1. Set screen blanking to 2 min 2. Wait 2 min with nothing playing -> The display goes black after 2 min 3. Play a netflix video in Chrome -> The display does not go black after 2 min ** Also affects: gnome-shell (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1697373 Title: Do not dim/lock the screen when a video is playing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1697373/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs