ubuntu-phone team mailing list archive
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ubuntu-phone team
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Message #17562
Re: black screen makes it imposible to terminate call
On 08.01.2016 17:34, Matthias Apitz wrote:
> El día Friday, January 08, 2016 a las 05:31:50PM +0100, Michael Zanetti escribió:
>
>> Could it be that the distance sensor is covered somehow?
>
> Where is this located and how it works? Light or something else?
On the Aquaris E4.5 it's located in the upper left corner, about half a
centimeter on the left of the camera. You can see it if you hold the
device towards the light so that it reflects on the surface. Not exactly
sure how it works, probably either sound or light waves, something that
is reflected up to a distance of some 20 centimers. If that is covered
(for example when you hold the phone towards your ear), the display will
turn off to prevent accidental touches on the display. It is active
while a phone call is ongoing and when the display has been woken up by
a notification and hasn't been unlocked yet.
Br,
Michael
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