Thanks Jimmy, will look into this ongoing issue tomorrow morning, and will update status.

I remember I attempted to resolve this ~ three weeks ago, and found out the DUT was not  responding to the plugged plug action, but another daisy DUT(from chromeos1-row1-rack4-host3) did well - around the builds from this screenshot - https://screenshot.googleplex.com/obR5hmZsgvY . Then I replaced this one with another(same kind of old DUT) and I believe I replaced the cable too.


We'll swap both of the DUTs (in_box and out_of_box_with_chameleon), and replaced the cable again.

Well, it seems no swapping DUTs is necessary.

I replaced just the cable and MIC node showed in the status menu as I plugged it manually(first to chameleon side). 

It is a little strange, but with the plugger, the new cable showed some flakiness in triggering the MIC node, and I had to adjust position little higher.
The old cable did not provoke it, no matter how I plugged - with plugger or manually. I know daisy has a distinctive end-of-plug bump that requires bigger force for jack to get in place. With the old cable I did not get this and with the new - yes, I can tell it is there.

It looks to me 3.5mm jacks are under stress and wear in way they cant work after some time. Will monitor for this happening again.

And locally running the test it passed 
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/tmp/test_that_results_jZwhly/results-1-audio_AudioBasicExternalMicrophone                                    [  PASSED  ]
/tmp/test_that_results_jZwhly/results-1-audio_AudioBasicExternalMicrophone/audio_AudioBasicExternalMicrophone [  PASSED  ]
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