Openmoko Bug #2315: Setting "Capture Right Mixer" might disable valid audio path

[Openmoko Public Trac]

#2315: Setting "Capture Right Mixer" might disable valid audio path
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 Reporter:  PaulFertser  |          Owner:  Nytowl     
     Type:  defect       |         Status:  new        
 Priority:  normal       |      Milestone:             
Component:  Distro       |        Version:  unspecified
 Severity:  normal       |       Keywords:             
 Haspatch:  0            |      Blockedby:             
Estimated:               |    Patchreview:             
 Blocking:               |   Reproducible:             
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 Jan Lübbe writes about his experience with using BT headsets for gsm
 calls:
 I setup a call using FSO/zhone, which switches to gsmhandset.state. Then
 i loaded GSMBLUETOOTH, and setup the headset using bluez.
 Now the transmit path worked fine, but i couldn't hear anything in the
 headset.

 The problem here seems to he the "Capture Left Mixer" control is set to
 "Analogue Mix Left". When i now switch this to something different
 ("Analogue Mix Right") and back, the receive path starts working. Paul and
 Jörg suggested it might have something to do with DAPM. Also i noticed
 that changeing "Capture Right Mix" changes "Capture Left Mix" in paralell,
 but doesn't fix the audio path im my case.

 Workaround:
 amixer sset "Capture Left Mixer" "Analogue Mix Right"
 amixer sset "Capture Left Mixer" "Analogue Mix Left"

 For reference see the whole thread from http://www.mail-archive.com
 /openmoko-kernel at lists.openmoko.org/msg08658.html

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Ticket URL: <https://docs.openmoko.org/trac/ticket/2315>
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