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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 - clock management is disabled for the 4K resolution with polaris 10"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109217">109217</a>
</td>
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<th>Summary</th>
<td>clock management is disabled for the 4K resolution with polaris 10
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>XOrg git
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (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>DRM/AMDgpu
</td>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>fin4478@hotmail.com
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=142962" name="attach_142962" title="Simple python app for monitoring and changing the engine clock">attachment 142962</a> <a href="attachment.cgi?id=142962&action=edit" title="Simple python app for monitoring and changing the engine clock">[details]</a></span>
Simple python app for monitoring and changing the engine clock
When the Xfce desktop is visible at 4K and idling, the engine clock is fixed at
level 6: 1220MHz and you can not change that. The temperature is 38 C. The
automatic power management works with 2560x1600 and lower resolutions. I tested
with my python app and I have latest drivers, including firmware files. My
monitor is ASUS VP28UQG and I use the display port.
Adding amdgpu.ppfeaturemask=0xffffffff to the kernel command line makes the
powerplay feature to work normally at 4K.
System:
Host: ryzenpc Kernel: 4.20.0-rc4+ x86_64 bits: 64 Desktop: Xfce 4.12.4
Distro: Debian GNU/Linux buster/sid
Machine:
Type: Desktop Mobo: ASUSTeK model: PRIME B350M-K v: Rev X.0x
serial: <root required> UEFI [Legacy]: American Megatrends v: 4207
date: 12/07/2018
CPU:
6-Core: AMD Ryzen 5 1600 type: MT MCP speed: 3132 MHz
Graphics:
Device-1: AMD Ellesmere [Radeon RX 470/480] driver: amdgpu v: kernel
Display: x11 server: X.Org 1.20.3 driver: amdgpu
resolution: 3840x2160~60Hz
OpenGL: renderer: Radeon RX 570 Series (POLARIS10 DRM 3.27.0 4.20.0-rc4+
LLVM 7.0.1)
v: 4.5 Mesa 19.0.0-devel (git-70be9af 2019-01-02 cosmic-oibaf-ppa)</pre>
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