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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - DC driver from drm-next-4.15-dc branch (upstream PR) not working"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103080">103080</a>
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<th>Summary</th>
<td>DC driver from drm-next-4.15-dc branch (upstream PR) not working
</td>
</tr>
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<th>Product</th>
<td>xorg
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
</td>
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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>Driver/AMDgpu
</td>
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<th>Assignee</th>
<td>xorg-driver-ati@lists.x.org
</td>
</tr>
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<th>Reporter</th>
<td>carlo@caione.org
</td>
</tr>
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<th>QA Contact</th>
<td>xorg-team@lists.x.org
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<pre>Created <span class=""><a href="attachment.cgi?id=134642" name="attach_134642" title="drm-next-4.15-dc log">attachment 134642</a> <a href="attachment.cgi?id=134642&action=edit" title="drm-next-4.15-dc log">[details]</a></span>
drm-next-4.15-dc log
Hardware is a new laptops that has the AMD Bristol Ridge chipset with this SoC:
AMD A10-9620P RADEON R5, 10 COMPUTE CORES 4C+6G
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Device 9874 (rev ca)
03:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Device 699f
(rev ff)
I tried the DC support using the
<a href="https://cgit.freedesktop.org/~agd5f/linux/log/?h=drm-next-4.15-dc">https://cgit.freedesktop.org/~agd5f/linux/log/?h=drm-next-4.15-dc</a> branch and
the firmware from <a href="https://people.freedesktop.org/~agd5f/radeon_ucode/polaris/">https://people.freedesktop.org/~agd5f/radeon_ucode/polaris/</a>
but I keep having no audio at all for HDMI.
In attachment the log.
The only way to have the DC and the HDMI audio output working is by using the
branch <a href="https://cgit.freedesktop.org/~agd5f/linux/log/?h=amd-staging-4.13">https://cgit.freedesktop.org/~agd5f/linux/log/?h=amd-staging-4.13</a> and
reverting both
<a href="https://lists.freedesktop.org/archives/amd-gfx/2017-May/009720.html">https://lists.freedesktop.org/archives/amd-gfx/2017-May/009720.html</a> and
<a href="https://cgit.freedesktop.org/~agd5f/linux/commit/?id=8f5ed2ed31944eea5c2746ec66417afac043eabd">https://cgit.freedesktop.org/~agd5f/linux/commit/?id=8f5ed2ed31944eea5c2746ec66417afac043eabd</a>
(the first one to have the HDMI output working at all, the second one to have
the audio working fine).
Any idea?</pre>
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