2008/5/4, Paul Davis <paul(a)linuxaudiosystems.com>om>:
the thing to do is to
fire up aplay with a long audio file, then put the laptop into suspend.
if it comes back from suspend with working playback, its a JACK issue.
otherwise, its an ALSA card-specific driver issue.
ok
now managed to play a wav through alsaplayer (alsa output driver).
result:
With the internal card (Intel hd_audio) resume IS working.
With the external usb card (ua-25) resume does NOT work.
no resume from hibernate-ram (playback stops, alsaplayer must be
restarted) with:
$ alsaplayer -r -oalsa -d default:CARD=UA25 ultra_test4.wav
successfull (playback continues) resume from hibernate-ram with:
$ alsaplayer -r -oalsa -d default:CARD=Intel ultra_test4.wav
The usb-card is powered off on hibernation.
A presumption: Maybe it doesn't get enougth time to re-power on.