Headphone doesn't work

[GoogleCodeExporter]

What steps will reproduce the problem?
1.Unlock the phone
2.Plugin Headphone
3.I run any music / movie / app

What is the expected output? What do you see instead?
I see nothing, as if I didn't have plug headphone , not even an error or 
incompatibility , the sound comes with speakers

What version of the product are you using? On what operating system?
CM 11 4.4.2 BETA 3 11-20131229 UNOFFICIAL NOZOMI

Please provide any additional information below.
Sorry for my ( very ) bad English, I'm a French teen  , I hope you was 
understand me ..

Original issue reported on code.google.com by TFQ....@gmail.com on 2 Jan 2014 at 8:52

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[deleted comment]

[GoogleCodeExporter]

And sorry I forget to add that , My headphones worked fine on the old ROM . 
Thanks you

Original comment by TFQ....@gmail.com on 2 Jan 2014 at 9:01

[GoogleCodeExporter]

I experience this problem too with Apple Earpods (they are 4-pin, I think this 
is important), however it's working fine with another jack output. The same 
earphones worked fine on stock firmware.

Original comment by dzia...@suabiaki.pl on 5 Jan 2014 at 11:01

[GoogleCodeExporter]

I forgot to mention that it's possible to hear very subtle noise for a while, 
so the hardware gets connected.
Here's output from logcat for plugging cable in and out:
V/WiredAccessoryManager(  624): Headset UEVENT: {SUBSYSTEM=switch, 
SWITCH_STATE=65280, DEVPATH=/devices/virtual/switch/h2w, SEQNUM=6001, 
ACTION=change, SWITCH_NAME=Device Unknown}
E/WiredAccessoryManager(  624): No state change.
V/WiredAccessoryManager(  624): newName=Device Unknown newState=0 
headsetState=0 prev headsetState=0
V/WiredAccessoryManager(  624): Headset UEVENT: {SUBSYSTEM=switch, 
SWITCH_STATE=0, DEVPATH=/devices/virtual/switch/h2w, SEQNUM=6002, 
ACTION=change, SWITCH_NAME=No Device}
E/WiredAccessoryManager(  624): No state change.
V/WiredAccessoryManager(  624): newName=No Device newState=0 headsetState=0 
prev headsetState=0

Original comment by dzia...@suabiaki.pl on 5 Jan 2014 at 11:28

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Can confirm. Audio works on 3 Pin headphones but doesnt work on 4 Pin with 
Microphone (headsets)

Original comment by vscopene...@gmail.com on 21 Feb 2014 at 9:53

[GoogleCodeExporter]

I can confirm this bug.
It seems to be related only to 4 pin phone connectors (adapters solve this bug).
The app soundabout can force the output via audio jack (though the headset 
still remains undetected, viper4android recognizes it as phone speaker).

Original comment by yuecela...@gmail.com on 30 Mar 2014 at 5:58