Well, that is useless. Please, do it again with all applications closed, i.e. no imageviewer or Calendar running. Just follow the steps bellow: 1. reboot 2. wait 10 minutes device to settle down. 3. open xterm 4. do sudo gainroot 5. start powertop and immediately lock the device 6. wait about 90 secs. 7. post powertop result here.