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Trying to fix audio output. NVIDIA GT 520 is the card so HDMI audio. It was working perfectly in 11.10.

Following the steps at:

Here is my ALSA-INFO:

This command does generate sound (good sign!): aplay -D plughw:1,7 /usr/share/sounds/alsa/Front_Center.wav

Added the default PCM line to asound.conf, did not fix anything.

If I configure VLC to play over ALSA on HDMI 1,7 then it works.

No users get sounds, XBMC no sound. I can't even use the System Settings -> Sounds -> Hardware Tab -> Test speakers, none of the options can produce sound.

This makes me believe pulse is toast. I am on hour 6 of trying to fix this.

This is a HTPC, running an upgrade from 11.10 to 12.04. Running kernel 3.2.0-24-generic.

UPDATE Using the pulse audio controls and an application like VLC at the same time I was able to visually see the app playing audio. The problem was it is defaulting to the Built in audio and not the HDMI/DP one. So XBMC and VLC are now set to HDMI/DP output properly.

PROBLEM STILL EXISTS. Nothing understands audio exists by default. They all assume the non existent built in audio is the one I want. Even the gnome sound indicator does not appear, none of the star

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Did you try downloading the pulse volume control from the software center and changing the profile/configuration?

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pavucontrol? yes this has allowed me to get apps working one at a time. If I get XBMC or VLC playing then open pavucontrol I can see the apps and changes its output to the HDMI/DP option. This works. However all new apps and other users are finding they have to manually adjust this as well. – Halsafar May 1 '12 at 3:56

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