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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [R7 370] DPM and power profile change crash the system"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91294">91294</a>
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<th>Summary</th>
<td>[R7 370] DPM and power profile change crash the system
</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>major
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/Radeon
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
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<th>Reporter</th>
<td>elia.argentieri@openmailbox.org
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=117032" name="attach_117032" title="dmesg | grep radeon with radeon.dpm=0">attachment 117032</a> <a href="attachment.cgi?id=117032&action=edit" title="dmesg | grep radeon with radeon.dpm=0">[details]</a></span>
dmesg | grep radeon with radeon.dpm=0
My system is unable to boot with an MSI R7 370 Armor 2X unless I put
radeon.dpm=0 (or nomodeset) to the boot parameter.
Also any change to the power profile results in an immediate lock up with blank
screen or, sometimes, black and white vertical stripes.
I think my issue is related with #77394 and #76490. Probably wrong frequency or
voltages given that the MSI R7 370 Gaming 4G (which is the better version with
higher frequency) works with DPM
(<a href="http://www.phoronix.com/scan.php?page=article&item=linux-411-gallium&num=1">http://www.phoronix.com/scan.php?page=article&item=linux-411-gallium&num=1</a>)
Tested with Linux 3.16, 4.0 and 4.1.
lspci -nnk | grep VGA:
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Curacao PRO [Radeon R7 370 / R9 270/370 OEM] [1002:6811] (rev 81)</pre>
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