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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - No HDMI HBR audio on Polaris (no TrueHD, no Atmos, no Neo:X, no HD Master audio) and static noise in sound when LPCM on amdgpu Xorg driver"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101900#c32">Comment # 32</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - No HDMI HBR audio on Polaris (no TrueHD, no Atmos, no Neo:X, no HD Master audio) and static noise in sound when LPCM on amdgpu Xorg driver"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101900">bug 101900</a>
from <span class="vcard"><a class="email" href="mailto:direx@betriebsdirektor.de" title="Direx <direx@betriebsdirektor.de>"> <span class="fn">Direx</span></a>
</span></b>
<pre>(In reply to Andrew Nelson from <a href="show_bug.cgi?id=101900#c31">comment #31</a>)
<span class="quote">> I have been running into the same issue. The problem seems to be that AMDGPU
> is reporting that it supports 7 speakers instead of 8 in the EID. HBR
> formats work with 5.1 encoded audio, but not 7.1. For some reason, the
> driver is configured to subtract 1 from the channel count before passing it
> into the EID. I have removed this and confirmed that 7.1 HBR audio works.</span >
Jackpot, this is it. Just tried your patch and now all audio formats are
working. I can confirm that the following formats can now be played back
correctly on my RX480:
- PCM 2.0
- PCM 5.1
- PCM 7.1
- Dolby <a href="mailto:Digital@5.1">Digital@5.1</a>
- <a href="mailto:DTS@5.1">DTS@5.1</a>
- Dolby <a href="mailto:TrueHD@7.1">TrueHD@7.1</a>
- DTS <a href="mailto:HD-MA@7.1">HD-MA@7.1</a>
- Dolby Atmos
Excellent job. Can we please get this patch into drm-fixes, as it is cleary a
bug fix and not a new feature.</pre>
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