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jeudi 19 mars 2015

[Q] BT wakelock - Z3 never deep sleep topic


Are you experiencing the following Kernel wakelocks on your phone?

  1. msm_serial_hs_dma

  2. BTLowPower



It hapepns both with an LG G Watch R (5.0.2) and a regular BT headset.

If we take the second device, I do expect a Kernel wakelock while speaking or streaming music. The phone is active any way while performing this task.
What is strange is that even if there is no activity the wakelocks avoid deep sleep.
What is strange is that if I move away from the headset (and the BT icon goes the "non connected" status), the wakelocks are always there.

The effect is that my phone (both on 4.4.4 and 5.0.2) almost never ever sleeps, and sometimes get warm.
If I switch BT off, everything goes back to normal.

Any solution?
I'm rooted, so I can do further tests researches (I'm using BBS to spot the wakelock).
Is it possible that this is an hardware problem? I'm asking as it looks like I'm the only one with this issue!

Thanks.

xda-developers