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<th>Priority</th>
<td>medium
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Auto fan speed management doesn't do anything in non critical temperature range (NVC0)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=78116">78116</a>
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<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
</td>
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<th>Summary</th>
<td>Auto fan speed management doesn't do anything in non critical temperature range (NVC0)
</td>
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<th>QA Contact</th>
<td>xorg-team@lists.x.org
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>OS</th>
<td>All
</td>
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<th>Reporter</th>
<td>mdop@seznam.cz
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<th>Hardware</th>
<td>x86-64 (AMD64)
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<th>Status</th>
<td>NEW
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Component</th>
<td>Driver/nouveau
</td>
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<th>Product</th>
<td>xorg
</td>
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<pre>I have Gigabyte GTX 560 Ti Ultra Durable card. (Logs for this issue are same as
in <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Reported fan rpm is twice the actual value (NVC0)"
href="show_bug.cgi?id=78106">Bug 78106</a>)
1a) When I finish booting, nouveau selects AUTO mode (pwm1_enable: 2) and set's
the fan power to 55% (pwm1: 55).
1b) Enable manual mode, set pwm1 to 100, enable auto mode.
In both cases I would expect from the AUTO mode to lower PWM to go as low as
pwm1_min if the temperature is low enough. My card temperature is 31-33 °C but
pwm1 is never lowered in AUTO mode (neither from 55 or 100).
2) On Windows pwm goes as low as pwm1_min (which is 40 by default for GTX 560
Ti but it also works with my modded value of 30). I thought that Nvidia card
can manage it by itself (is it really done by operating system/software?).</pre>
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