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<base href="https://bugs.freedesktop.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Second monitor shows black screen but has signal"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102300">102300</a>
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<th>Summary</th>
<td>Second monitor shows black screen but has signal
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>XOrg git
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>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>
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<th>Reporter</th>
<td>fayn@mt2015.com
</td>
</tr></table>
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<div>
<pre>I can't set my second monitor to 1920x1080 mode in linux. This problem started
2-3 weeks ago. Disabling and enabling monitor with xrandr or XFCE settings used
to restore signal (until next restart, sleep doesn't cause bug) but that
doesn't help anymore and adding custom mode doesn't help either. I can set
xrandr supported lower resolutions and they work.
This happens in Archlinux with linux 4.12 / Mesa 17.1 / amdgpu 1.3.0 but also
happens with linux 4.13rc5 / mesa-git / amdgpu-git.
Everything works in grub and windows 7, but right after linux starts to boot it
switches resolution (fb -> amdgpudrmfb i guess?) and ASUS monitor goes black.
So the problem only happens in linux. it's UEFI boot for both OS.
Ryzen 1700
ASUS Prime B350+
Radeon R9 285
Dell U2414H DVI-D-0 (HDMI -> DVI-D cable)
ASUS VE247 DVI-I-1 (DVI-I cable)
If logs are needed just tell what to show.</pre>
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