Have mako (Nexus 4) with display off and a logged ssh terminal with "sudo powerd-cli active".
With pristine image, top says unity8 CPU usage fluctuates between 6% and 10%. If I comment out the AnimatedSprite in Cursor.qml, CPU usage fluctuates between 0% and 1%. So this indicates that the regression was introduced by http://bazaar.launchpad.net/~unity-team/unity8/trunk/revision/2439 as aacid pointed out (AnimatedSprite usage was introduced by that commit). ** Changed in: unity8 (Ubuntu) Assignee: (unassigned) => Daniel d'Andrada (dandrader) ** Changed in: unity8 (Ubuntu) Status: Incomplete => In Progress -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity8 in Ubuntu. https://bugs.launchpad.net/bugs/1588873 Title: CPU usage with screen off Status in Canonical System Image: Confirmed Status in unity8 package in Ubuntu: In Progress Bug description: With the latest rc-proposed 341 unity8 is at a steady 2.9% with the screen off and plugged into laptop over usb. E4.5 running stable ota 11 and MX4 running 327 (5/14) do not exhibit this. To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1588873/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp

