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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 - pp_dpm_mclk always on level 1 (cant set to level 0) rx 480"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102130">102130</a>
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<th>Summary</th>
<td>pp_dpm_mclk always on level 1 (cant set to level 0) rx 480
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>unspecified
</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>gsedej@gmail.com
</td>
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<p>
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<pre>I can't set memory state to 0 (300 MHz), it always stays at state 1 (2000 MHz).
If I set
echo "manual" > power_dpm_force_performance_level
echo 0 > pp_dpm_mclk
the memory clock stays at level 1, and I get kernel message:
[ 239.231304] amdgpu: [powerplay]
failed to send message 146 ret is 255
[ 239.995386] amdgpu: [powerplay]
failed to send pre message 201 ret is 255
The hardware is "SAPPHIRE NITRO+ Radeon RX 480 OC" and it might be BIOS
related, since some rx 480 users does not have such problem.
Using Ubuntu 16.04.2 kernel 4.13-rc4.</pre>
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