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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#c34">Comment # 34</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:harry.wentland@amd.com" title="Harry Wentland <harry.wentland@amd.com>"> <span class="fn">Harry Wentland</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=137870" name="attach_137870" title="[PATCH] Add one to EDID's audio channel count when passing to DC">attachment 137870</a> <a href="attachment.cgi?id=137870&action=edit" title="[PATCH] Add one to EDID's audio channel count when passing to DC">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=101900&attachment=137870'>[review]</a>
[PATCH] Add one to EDID's audio channel count when passing to DC
Thanks everyone for the debug on this one and especially Andrew for the patch.
DC seems to take channel_count/audio_count to refer to the actual number of
channels whereas the CEA EDID extension and our HW represent it as the number
of channels-1. So as not to break other uses of this count (such as
check_audio_bandwidth_hdmi()) this patch adds 1 when we get the count from the
EDID.
Can someone give it a spin? It's based on the latest amd-staging-drm-next
branch but should apply on other branches as well.</pre>
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