Public bug reported:
Platform: Ubuntu 11.10 running latest ALSA, PulseAudio and outputting
via a M-Audio Delta 1010LT soundcard.
Trigger: On resuming a session from hibernate
Expected behaviour: I should be able to output audio from the selected
default device in Settings -> Sound, much as I was able to do so before
hibernating.
Actual behaviour: Unable to get any audio from M-Audio 1010LT. Going to
Settings -> Sound and reselecting the device fails to enable audio
output. Killing pulseaudio from terminal (pulseaudio -k) which causes a
respawn fails to correct issue.
Essentially it's high time we sorted out this Linux audio joke of a
configuration. Many many people have spoken about and recognised the need to do
this, but only Canonical & Ubuntu really have the power to do it. PulseAudio /
ALSA / Jack constantly compete for exclusive access to sound devices, which is
no wonder the spaghetti network fails on resume.
I'd suggest binning Pulseaudio / Gstreamer etc entirely, and reducing
audio management down to two layers: the driver, and the mixer. ALSA
does both nicely. Develop a GUI mixer for ALSA as the standard Ubuntu
desktop mixer, and develop a Pulseaudio like ALSA plugin that allows
programs which will normally only talk to Pulseaudio, think that ALSA is
Pulseaudio. Also force ALSA to select default sound device by name
rather than by hw:# identity which can change on reboot.
** Affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/912232
Title:
Audio output fails on resume from hibernate, Dell Vostro, Ubuntu 11.10
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