Openmoko Bug #1599: Suspend / resume breaks audio

[Openmoko Public Trac]

#1599: Suspend / resume breaks audio
-------------------------------------------+--------------------------------
    Reporter:  phyce                       |        Owner:  openmoko-kernel
        Type:  defect                      |       Status:  new            
    Priority:  normal                      |    Milestone:  Om2007.2       
   Component:  System Software             |      Version:  GTA02v5        
    Severity:  normal                      |   Resolution:                 
    Keywords:  sound audio suspend resume  |    Blockedby:                 
Reproducible:                              |     Blocking:                 
-------------------------------------------+--------------------------------

Comment(by houska):

 > RE: I RESOLVED IT -- details follow: ....

 Hi,
 in my case the troublemaker is pulse audio:
 {{{
 root at om-gta02:~# fuser /dev/snd/pcmC0D0p
 2004 2040
 root at om-gta02:~# ps aux|grep -e 2004 -e 2040
 root      2004  9.5  2.4  16728  2980 ?        S<Lsl 10:48   1:04
 /usr/bin/pulseaudio --no-cpu-limit --resample-method=trivial -D -nF
 /etc/pulse/session
 root      2040  1.3  3.0  16024  3816 pts/0    SL+  10:53   0:04 mplayer
 -ao alsa /media/card/sirena.wav
 root      2070  0.0  0.4   2752   592 pts/1    S+   10:59   0:00 grep -e
 2004 -e 2040
 root at om-gta02:~#
 }}}
 mplayer doesn't play:
 {{{
 Starting playback...
 A:   0.0 (00.0) of 2.0 (02.0) ??,?%
 }}}
 pulseaudio strace:
 {{{
 poll([{fd=3, events=POLLIN}, {fd=20, events=POLLIN}, {fd=17,
 events=POLLIN}, {fd=14, events=POLLIN}, {fd=13, events=POLLIN}, {fd=12,
 events=POLLIN}, {fd=11, events=POLLIN}, {fd=10, events=POLLIN}, {fd=7,
 events=POLLIN}], 9, 1915) = 0
 gettimeofday({1220864597, 94808}, NULL) = 0
 gettimeofday({1220864597, 100972}, NULL) = 0
 gettimeofday({1220864597, 106696}, NULL) = 0
 gettimeofday({1220864597, 110413}, NULL) = 0
 poll([{fd=3, events=POLLIN}, {fd=20, events=POLLIN}, {fd=17,
 events=POLLIN}, {fd=14, events=POLLIN}, {fd=13, events=POLLIN}, {fd=12,
 events=POLLIN}, {fd=11, events=POLLIN}, {fd=10, events=POLLIN}, {fd=7,
 events=POLLIN}], 9, 51) = 0
 gettimeofday({1220864597, 172238}, NULL) = 0
 gettimeofday({1220864597, 176766}, NULL) = 0
 gettimeofday({1220864597, 180713}, NULL) = 0
 gettimeofday({1220864597, 185510}, NULL) = 0
 poll([{fd=3, events=POLLIN}, {fd=20, events=POLLIN}, {fd=17,
 events=POLLIN}, {fd=14, events=POLLIN}, {fd=13, events=POLLIN}, {fd=12,
 events=POLLIN}, {fd=11, events=POLLIN}, {fd=10, events=POLLIN}, {fd=7,
 events=POLLIN}], 9, 1921) = 0
 gettimeofday({1220864599, 119480}, NULL) = 0
 gettimeofday({1220864599, 121626}, NULL) = 0
 gettimeofday({1220864599, 126834}, NULL) = 0
 gettimeofday({1220864599, 130141}, NULL) = 0
 poll([{fd=3, events=POLLIN}, {fd=20, events=POLLIN}, {fd=17,
 events=POLLIN}, {fd=14, events=POLLIN}, {fd=13, events=POLLIN}, {fd=12,
 events=POLLIN}, {fd=11, events=POLLIN}, {fd=10, events=POLLIN}, {fd=7,
 events=POLLIN}], 9, 50) = 0
 gettimeofday({1220864599, 187026}, NULL) = 0
 gettimeofday({1220864599, 191503}, NULL) = 0
 gettimeofday({1220864599, 194857}, NULL) = 0
 gettimeofday({1220864599, 197008}, NULL) = 0
 poll([{fd=3, events=POLLIN}, {fd=20, events=POLLIN}, {fd=17,
 events=POLLIN}, {fd=14, events=POLLIN}, {fd=13, events=POLLIN}, {fd=12,
 events=POLLIN}, {fd=11, events=POLLIN}, {fd=10, events=POLLIN}, {fd=7,
 events=POLLIN}], 9, 1929) = 0
 gettimeofday({1220864601, 133140}, NULL) = 0
 gettimeofday({1220864601, 139464}, NULL) = 0
 gettimeofday({1220864601, 141464}, NULL) = 0
 gettimeofday({1220864601, 146087}, NULL) = 0
 poll([{fd=3, events=POLLIN}, {fd=20, events=POLLIN}, {fd=17,
 events=POLLIN}, {fd=14, events=POLLIN}, {fd=13, events=POLLIN}, {fd=12,
 events=POLLIN}, {fd=11, events=POLLIN}, {fd=10, events=POLLIN}, {fd=7,
 events=POLLIN}], 9, 48) = 0
 gettimeofday({1220864601, 202131}, NULL) = 0
 gettimeofday({1220864601, 208867}, NULL) = 0
 gettimeofday({1220864601, 211057}, NULL) = 0
 gettimeofday({1220864601, 213248}, NULL) = 0
 poll( <unfinished ...>
 Process 2004 detached
 root at om-gta02:~#
 }}}

 restarting pulseaudio after wakeup helps

-- 
Ticket URL: <https://docs.openmoko.org/trac/ticket/1599#comment:23>
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