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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - DPMS issue w/ GFX8/Polaris10/Ellesmere/Rx-480-8GiB & agd5f's drm-next-4.17-wip"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104888">104888</a>
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<th>Summary</th>
<td>DPMS issue w/ GFX8/Polaris10/Ellesmere/Rx-480-8GiB & agd5f's drm-next-4.17-wip
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<th>Product</th>
<td>DRI
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<th>Version</th>
<td>XOrg git
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<th>Hardware</th>
<td>Other
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
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<th>Priority</th>
<td>medium
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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>robink@creosotehill.org
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<pre>Hello-
I'm currently running a kernel directly based upon agd5f's
drm-next-4.17-wip (commit aa876beccdd9d6694df78ebbb395eb206d4cb84e at the time
of writing this) (I've applied a couple of EFI fixups and tweaked the
.gitignore, but none of my cherry-picked commits should be dinking with the
DRM/KMS/AMDGPU code).
The system boots, and brings up the AMDGPU driver and FB with no issue, but
the display (a Samsung S27C650 attached via DisplayPort) fails to sleep. I've
tried forcing it into sleep mode via setterm, to no avail. There is no
error/warning (or info of any kind) logged to the kernel console. If someone
could suggest a kernel command-line boot option to increase the verbosity of
the AMDGPU driver, I would be very appreciative. Thank you in advance.
-Robin K.</pre>
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