On Fr, 2017-09-01 at 10:16 +0200, H. Nikolaus Schaller wrote:

Hi,

great!

That's still quite a lot, especially for idling. That would be 7 hours of battery time when doing nothing - whereas the Pandora runs 8 hours with normal usage (and up to 20 hours and more when idling), whereas the battery is only 4400mAh instead of 6000mAh.

Have you tried rmmodding usb-ehci?

That seems to be a power eater on the uEVM at least.

What devices has been switched on / off for your idle-test? Modem? Wifi?

Hi, with the new fuel gauge driver which sets the correct battery capacity we IMHO get more reliable current measurements from

/sys/class/power_supply/bq27421-0

Here is the 2GB Pyra in idle with 250 MHz

current: -644000uA

And here after turning off display and keyboard backlight:

current: -483000uA

And the measure-suspend script also works now.

average 124137 uA over 29 seconds average 108361 uA over 299 seconds

Well, we know that we do not shut down everything during suspend.

BR, Nikolaus

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