Oxide (the web engine under webbrowser-app) is the one that issues a request to prevent screen blanking when playing a video. It has code to handle releasing the lock when the app goes into the background, so unless the signal doesn’t reach oxide in time before the process is stopped, the lock should be released as expected.
See oxide::PowerSaveBlocker::ApplicationStateChanged() in http://bazaar.launchpad.net/~oxide- developers/oxide/oxide.trunk/view/head:/shared/browser/oxide_power_save_blocker.cc#L238. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity-system-compositor in Ubuntu. https://bugs.launchpad.net/bugs/1502145 Title: Apps can keep screen lit permanently Status in Canonical System Image: Confirmed Status in qtmir package in Ubuntu: New Status in unity-system-compositor package in Ubuntu: Confirmed Status in unity8 package in Ubuntu: New Status in webbrowser-app package in Ubuntu: New Bug description: rc-proposed, r140, krillin There are times when it seems the display blanking policy stops working and the display stays on until I press the power button. Steps to reproduce: * install and start Siete * put it in background Expected outcome: * the display is switched off after a predetermined amount of time Actual outcome: * the display stays on forever ====== Now that apps can request the screen to stay on, they can do so regardless of whether they're focused/visible or not. To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1502145/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp