No audio over HDMI AMD

[Tickeldi]

Hi folks. I've got this strange problem.

I don't hear a sound coming out of my TV when I connect it to my Laptop running Gentoo with a 3.6.11 Kernel. An HDMI cable is used. So no DVI Adapter but HDMI to HDMI. I am using radeon driver kms.
X Server 1.13.1 recognizes the screen and uses it beautifully to display my desktop.

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 [*]   Build HDMI/DisplayPort HD-audio codec support 

is set in the kernel.

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# lspci
01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI RV710/730 HDMI Audio [Radeon HD 4000 series]

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$ aplay -l
Karte 0: Intel [HDA Intel], Gerät 0: ALC888 Analog [ALC888 Analog]
  Sub-Geräte: 0/1
  Sub-Gerät #0: subdevice #0
Karte 0: Intel [HDA Intel], Gerät 1: ALC888 Digital [ALC888 Digital]
  Sub-Geräte: 1/1
  Sub-Gerät #0: subdevice #0
Karte 1: HDMI [HDA ATI HDMI], Gerät 3: HDMI 0 [HDMI 0]
  Sub-Geräte: 0/1
  Sub-Gerät #0: subdevice #0

So I try

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# aplay -D plughw:1,3 /usr/share/sounds/warning.wav
Wiedergabe: WAVE '/usr/share/sounds/warning.wav' : Signed 16 bit Little Endian, Rate: 44100 Hz, stereo

It seems to play but I don't hear a thing.

I've set
/etc/default/grub

GRUB_CMDLINE_LINUX_DEFAULT="radeon.audio=1"

I am using pulseaudio and emerged media-sound/pavucontrol
I've set the VLC Player to the HDMI output and the output is recognized (the blue bar represents the sound that is being put out) but I can't physically hear it.
http://i.imgur.com/yClHMmh.png

It works with windows so the hardware shouldn't be at fault.

Any ideas what's left to try?

[DaggyStyle]

HDMI/DisplayPort HD-audio codec support might not be enough, can you post the entire relevat alsa section?