Public bug reported:

pulseaudio hangs during start of a couple of medion pcs in our lab. We
are running ltsp on all ws but the error exists on natively installed
ubuntu as well. Natty was  able to play spound without a hang on this
hardware. This - most probably I guess -  has something to do with  the
hdmi-sound card on board(?) , because pulseaudio hangs in all newer
versions of ubuntu after Natty.

Unfortunately every sound related program like e.g. the firefox starts
waiting in a gray inactive window also, as soon as a sound appears to be
played in it. So due to this fact these wss revealed to be unusable.

Important information about the hardware caught by alsa, alsamixer (with
recognized onboard sound cards), asound modules, lshw and lspci could be
found at http://servmin.homelinux.org/7SGopYpVf1jS7DIZJ4i25743S8      .
. .

We created a  workaround that circuits around the effect and avoids the
error for people who run into the same problem (also usable in
<ltsp.conf> as a ltsp-start-script for a particular ws):

--- begin
#!/bin/bash
##########################################################################################
# bootscript for ltsp-clients on medion-pcs with different follow up
# of sound-cards and pulse-audio sound manager being switched off
##########################################################################################
. /etc/profile
echo autospawn=no >>/etc/pulse/client.conf
echo defaults.pcm.card 1 >> /etc/asound.conf
echo defaults.pcm.device 0 >> /etc/asound.conf
echo defaults.ctl.card 1 >> /etc/asound.conf
alsa reload
--- end

it works on all the effected wss.

We waited for an update to solve the problem but the fact that all newer
versions cannot handle this hardware lets us file this bug finally.

Thank You for Your attention :)

** Affects: pulseaudio (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1212592

Title:
  hang of pulseaudio on medion pc

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