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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 - FAN speed is too high when displays are off"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101653">101653</a>
</td>
</tr>
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<th>Summary</th>
<td>FAN speed is too high when displays are off
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>medium
</td>
</tr>
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<th>Component</th>
<td>DRM/AMDgpu
</td>
</tr>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>alexander@tsoy.me
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=132364" name="attach_132364" title="kernel log">attachment 132364</a> <a href="attachment.cgi?id=132364&action=edit" title="kernel log">[details]</a></span>
kernel log
While investigating <a class="bz_bug_link
bz_status_NEW "
title="NEW - RX460 Memory clock stays high until card is "used""
href="show_bug.cgi?id=101528">bug #101528</a>, I've noticed another issue: FAN speed is too
high when display are off.
Display is off:
$ cat /sys/class/hwmon/hwmon6/fan1_input
1914
Display is on:
$ cat /sys/class/hwmon/hwmon6/fan1_input
941
In both cases sclk, mclk and pcie are in the same lowest state.
GPU:
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Tonga PRO [Radeon R9 285/380] [1002:6939] (rev f1) (prog-if 00 [VGA
controller])
Subsystem: PC Partner Limited / Sapphire Technology Tonga PRO [Radeon
R9 285/380] [174b:e305]
kernel:
$ uname -r
4.11.7-gentoo</pre>
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