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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 - Monitors don't always wake up after sleep"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105188">105188</a>
</td>
</tr>
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<th>Summary</th>
<td>Monitors don't always wake up after sleep
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>medium
</td>
</tr>
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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>mbartoszkiewicz@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=137497" name="attach_137497" title="Kernel log">attachment 137497</a> <a href="attachment.cgi?id=137497&action=edit" title="Kernel log">[details]</a></span>
Kernel log
Hardware:
GPU: Gigabyte Radeon RX 480 G1 Gaming 8GB
Monitors: 3× Eizo FlexScan S2243W, connected using DP
Software:
Distribution: Gentoo
Kernel: 4.15.4
x11-drivers/xf86-video-amdgpu-1.4.0
x11-base/xorg-server-1.19.6
media-libs/mesa-18.0.0_rc4
x11-libs/libdrm-2.4.89
The monitors do not always correctly wake up from sleep.
E.g. after locking the session, the monitors go to sleep.
After pressing a key, only some wake up – the rest are still sleeping.
It does not seem to be deterministic – sometimes a monitor will wake up
correctly, sometimes not.
The kernel log attached is after running the following script:
for i in {1..5}; do echo "XXX before suspend $i" | sudo tee /dev/kmsg; xset
dpms force suspend; sleep 10; echo "XXX before on $i" | sudo tee /dev/kmsg;
xset dpms force on; sleep 10; echo "XXX status $i:" $(cat
/sys/devices/pci0000:00/0000:00:03.0/0000:03:00.0/drm/card0/card0-DP-*/status)
| sudo tee /dev/kmsg; done
I am not sure if it is directly related to this issue, but the kernel log
contains two refcount_t warnings in amdgpu code.</pre>
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