#12867 NORM Future : sugar: audio icon in frame ineffective

[Zarro Boogs per Child]

#12867: sugar: audio icon in frame ineffective
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            Reporter:  Quozl   |          Owner:  Quozl
                Type:  defect  |         Status:  new
            Priority:  normal  |      Milestone:  Future Release
           Component:  sugar   |        Version:  not specified
          Resolution:          |       Keywords:
          Blocked By:          |       Blocking:
Deployments affected:          |  Action Needed:  code
            Verified:  0       |
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Changes (by Quozl):

 * next_action:  diagnose => code


Comment:

 The XO-1.75 uses the same ALC5631 audio codec chip as the XO-4, but with a
 different I2C master peripheral in the CPU.

 A new kernel is available for testing, which backports our XO-4 audio
 codec to the XO-1.75;
 * restricts playback and capture to 48000 Hz sample rate (#12289),
 * the AXI control is renamed to Capture to be consistent with other XO
 laptop models, and to work correctly with Sugar,
 * many unnecessary controls are removed from alsamixer,
 * correctly works with headphones with suspend and resume,
 * configures the microphone input as mono, which fixes one cause of
 flatlined audio in Measure and Record,
 * configures the Class-D Over-Current Threshold to prevent shutdown of
 speakers in some situations.

 Measure needs fixing:
 * restore all controls on exit.

 olpc-utils needs fixing:
 * set default controls on boot in olpc-configure; is done for earlier
 models.

 References
 *
 http://dev.laptop.org/~quozl/12867/kernel-3.0.19_xo1.75-20150822.0351.olpc.b3d1af4.armv7hl.rpm
 * http://dev.laptop.org/~quozl/y/1ZT0WW.txt (kernel patch)

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Ticket URL: <http://dev.laptop.org/ticket/12867#comment:8>
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