Comment 49 for bug 1719795

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In , russianneuromancer (russianneuromancer-linux-kernel-bugs) wrote :

> "in_accel_sampling_frequency from 10 to 10", may be you mean something.

Sorry, I mean 10 to 1.

> Then I think you will be fine.

Yes, events stopped, power consumption back to normal.

> Then enable 1 by 1 and see which device has issue.

magn_3d and accel_3d

> Then play with those parameters in problem device.

0.010000 in_accel_hysteresis and 2 in_accel_sampling_frequency produce reasonable power consumption (below 3 watts in idle with enabled screen and wifi) and seems like doesn't affect tablet automatic screen rotation. 1 in_accel_sampling_frequency is noticeably slower. Default 10 in_accel_sampling_frequency consume more power (above 3 watts most of the time) without noticeable improvement to tablet automatic screen rotation.

With magnetometer it's kind of more difficult. I find that 1.000000 in_magn_hysteresis and 0.1 in_magn_sampling_frequency is good for power consumption, but I have no idea how to verify if magnetometer is still usable.