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I have my computer connected to my Sony TV, the HDMI video output works fine but I cant get the audio to work. I can see the HDMI output option in the sound settings but nothing happens. When I plug in my headphones the sound works fine

Do you guys have any solution to this ?

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What happens if you connect your HDMI device and run in a terminal pactl set-card-profile 0 hdmi-output-0? – Salem Oct 19 '13 at 17:31
It says "no valid command specified" @Salem – Kalli Oct 19 '13 at 21:04
Sorry that command is not right. Try this: pactl set-card-profile 0 output:hdmi-stereo. As your system may also have different names for the interfaces you can try to just write pactl set-card-profile and hit TAB to see the suggestions. – Salem Oct 19 '13 at 22:55
@Salem I had the same problem and your suggestion worked. Maybe you can turn that into an answer? – hpesoj626 Nov 29 '13 at 14:54
@Kalli Have you solved your problem? – Salem Apr 18 '14 at 12:03

You can try to run

pactl set-card-profile 0 output:hdmi-stereo

This should set the audio output to HDMI.

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Open a terminal using CTRL+ALT+T and type in the following command:

sudo alsa force-reload

It works on 13.10 (for me, atleast.)

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