Openmoko Bug #1599: Suspend / resume breaks audio

[Openmoko Public Trac]

#1599: Suspend / resume breaks audio
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 Reporter:  phyce                       |        Owner:  openmoko-kernel
     Type:  defect                      |       Status:  new            
 Priority:  normal                      |    Milestone:  OM-2007.2      
Component:  System Software             |      Version:  GTA02v5        
 Severity:  normal                      |   Resolution:                 
 Keywords:  sound audio suspend resume  |     Blocking:                 
Blockedby:                              |  
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Comment(by mwester):

 Executing "pactl suspend-sink 1" prior to suspend, and "pactl suspend-sink
 0" upon resume will work around this issue.  These commands can be
 executed by apm automagically, if apm is handling the suspend/resume
 activity.

 Fortunately this is the case for the 2007.2 images, so you can simply add
 the preceding commands to the /etc/apm/suspend.d and /etc/apm/resume.d
 directories.

 See http://moko.mwester.net/fixes.html for an example that performs these
 steps (along with some other suspend/resume related actions).

 --

 I've dug into the code a little; it seems that pulseaudio is doing
 something with a file in /sys that triggers this problem; clearly upon
 resume the driver is in some state that is different than the way
 pulseaudio left it when the system suspended.

-- 
Ticket URL: <https://docs.openmoko.org/trac/ticket/1599#comment:10>
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