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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [amd-staging] No HDMI/DP surround sound with DC on RX 480"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101222">101222</a>
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<th>Summary</th>
<td>[amd-staging] No HDMI/DP surround sound with DC on RX 480
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>XOrg git
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
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<th>OS</th>
<td>Linux (All)
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/AMDgpu
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
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<th>Reporter</th>
<td>chewi@gentoo.org
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=131555" name="attach_131555" title="/proc/asound/HDMI/codec#0">attachment 131555</a> <a href="attachment.cgi?id=131555&action=edit" title="/proc/asound/HDMI/codec#0">[details]</a></span>
/proc/asound/HDMI/codec#0
I've been trying amd-staging on and off for a while in the hope of getting
HDMI/DP surround sound working. There seems to be very few people trying
amd-staging and even fewer trying surround sound as I haven't seen a single
mention of it anywhere. Is it even supposed to work yet?
Stereo output is working but multi-channel LPCM only appears on my receiver as
stereo and AC3 pass-through doesn't work at all. I had all this working on the
same system with my old HD 4670 and I've made do with S/PDIF from my on-board
sound in the meantime. I've tried directly with ALSA and via PulseAudio.
The latest kernel I've tried is 4.11 with
b382281b45ec359deeeeef715b182322f4fa9566. I've found alsa-lib and friends can
make a difference in the past so I just tried 1.1.4.
I'll attach some details. Note that I have a stereo monitor plugged into the
HDMI port and my receiver in the first DisplayPort. I obviously select the
right output when testing!</pre>
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</p>
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