In #46, there is a difference of an ALS entry. (Pat's does not have one, while 
the one containing
an error has one) but the error is contained in the ALS/PS, while LHJ_PS looks 
normal. These functions that look like they pertain to calibration. 

As in the log from #45 seems to point to ALS/PS reading from mt-i2c, it
could originate in the hardware, but the software doesn't recover.
Whether that software is the driver, android sensors or powerd or
something else would require digging through the code. My guess is the
(als) driver doesn't handle this well.

It is interesting that this seems to happen on krillin as well, but
apparently not all devices. I'm not familiar enough with these to
devices to know if they use the same als/ps chip or share driver code.

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https://bugs.launchpad.net/bugs/1493574

Title:
  [vegeta] Phone app makes screen stay black during call (so you can't
  hang up)

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