[Bug 30151] HDMI audio via radeon DRM driver is not working.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=30151

--- Comment #6 from Andy Furniss <lists at andyfurniss.entadsl.com> ---
(In reply to comment #5)
> Off course !
> 
> cat /proc/asound/cards
>  0 [Intel          ]: HDA-Intel - HDA Intel
>                       HDA Intel at 0xfc500000 irq 47
>  1 [HDMI           ]: HDA-Intel - HDA ATI HDMI
>                       HDA ATI HDMI at 0xfc010000 irq 48
> 
> cat /proc/asound/devices
>   2: [ 0- 0]: digital audio playback
>   3: [ 0- 0]: digital audio capture
>   4: [ 0- 0]: hardware dependent
>   5: [ 0]   : control
>   6: [ 1- 3]: digital audio playback
>   7: [ 1- 0]: hardware dependent
>   8: [ 1]   : control
>  33:        : timer

Looks like vlc is trying the wrong device - from your output -

"Audio device 'hdmi: CARD = HDMI, DEV = 0 "can not be used:"

You need to get vlc to use card 1 device 3, I don't use vlc so can't help with
that. I don't use smplayer either but with plain mplayer you would do -

mplayer -ao alsa:device=hw=1.3

Pulse may complicate things - I don't know as I don't use that.

If you still can't get any playback run alsamixer press F6 select hdmi and make
sure it says OO not MM. Pressing m will toggle between Open and Mute.

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