[Bug 101222] [amd-staging] No HDMI/DP surround sound with DC on RX 480

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101222

--- Comment #7 from Mikko Autio <mikko.autio1 at gmail.com> ---
(In reply to James Le Cuirot from comment #6)
> (In reply to Mikko Autio from comment #4)
> > Attached patch fixes multi-channel HDMI audio on my RX 460.
> 
> I was about to shower you with praise but sadly that patch made no
> difference here. :(

Maybe there is something else broken with DisplayPort audio?

I have my receiver plugged into HDMI port of my RX 460 and my TV is plugged
into my receiver. Multi-channel audio over HDMI was working fine even without
the patch (including AC3/DTS pass-through), but only up to 5.1 channels.
Anything over 5.1 channels appeared as stereo on my receiver.

With the patch 7.1 LPCM and DTS-HD/TrueHD pass-through are now working fine.

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