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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 - radeon (amdgpu) DisplayPort loss of max-resolution on DP monitor (after monitor power saving / idle)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107731">107731</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>radeon (amdgpu) DisplayPort loss of max-resolution on DP monitor (after monitor power saving / idle)
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/AMDgpu
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>freedesktop-bugs@fermulator.fastmail.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=141328" name="attach_141328" title="dmesg output post DP disconnect + reconnect to fix resolution">attachment 141328</a> <a href="attachment.cgi?id=141328&action=edit" title="dmesg output post DP disconnect + reconnect to fix resolution">[details]</a></span>
dmesg output post DP disconnect + reconnect to fix resolution
as an extension of the story from:
* <a class="bz_bug_link
bz_status_NEW "
title="NEW - radeon (amdgpu) GDM flip queue failed invalid argument, DisplayPort issues"
href="show_bug.cgi?id=107560#c9">https://bugs.freedesktop.org/show_bug.cgi?id=107560#c9</a>
after a few kernel/driver upgrades and weeks later, that is no longer
reproducible - and is instead replaced by lesser issues still plaguing the
monitor connected via display port
$ uname -r
4.17.17-100.fc27.x86_64
noticed that the same monitor (connected via DisplayPort) had mis-match
capabilities (wasn't able to go max resolution)
```
$ xrandr
Screen 0: minimum 320 x 200, current 3840 x 1200, maximum 16384 x 16384
DisplayPort-0 connected primary 1920x1080+0+0 (normal left inverted right x
axis y axis) 0mm x 0mm
1920x1080 59.95*
1600x1200 59.95
1680x1050 59.95
1280x1024 59.95
1440x900 59.95
1280x800 59.95
1280x720 59.95
1024x768 59.95
800x600 59.95
640x480 59.95
HDMI-A-0 disconnected (normal left inverted right x axis y axis)
DVI-D-0 connected 1920x1200+1920+0 (normal left inverted right x axis y axis)
518mm x 324mm
1920x1200 59.95*+
1920x1080 59.95
1600x1200 60.00
1680x1050 59.95
1280x1024 60.02
1440x900 59.95
1280x960 60.00
1280x800 59.95
1280x720 59.95
1024x768 60.00
800x600 60.32 56.25
640x480 59.94
```
The " 1920x1200 59.95*+" option is missing from the display port monitor.
If I disconnect the DP, and reconnect, it comes back.
```
$ xrandr | grep +
DisplayPort-0 connected primary 1920x1200+0+0 (normal left inverted right x
axis y axis) 518mm x 324mm
1920x1200 59.95*+
DVI-D-0 connected 1920x1200+1920+0 (normal left inverted right x axis y axis)
518mm x 324mm
1920x1200 59.95*+
```
---
$ dnf info xorg-x11-drv-amdgpu
Failed to synchronize cache for repo 'mosquito-atom', disabling.
Failed to synchronize cache for repo 'region51-chrome-gnome-shell', disabling.
Failed to synchronize cache for repo 'spacewalk-client', disabling.
Last metadata expiration check: 20 days, 23:02:26 ago on Tue 07 Aug 2018
11:04:16 AM EDT.
Installed Packages
Name : xorg-x11-drv-amdgpu
Version : 18.0.1
Release : 1.fc27
Arch : x86_64
Size : 147 k
Source : xorg-x11-drv-amdgpu-18.0.1-1.fc27.src.rpm
Repo : @System
>From repo : updates
Summary : AMD GPU video driver
URL : <a href="https://www.x.org/wiki">https://www.x.org/wiki</a>
License : MIT
Description : X.Org X11 AMDGPU driver
$ rpm -qa | egrep "amdgpu|gdm|dri-|xorg-x11-server|gnome-session"
mesa-dri-drivers-17.3.9-1.fc27.x86_64
xorg-x11-server-utils-7.7-23.fc27.x86_64
xorg-x11-drv-amdgpu-18.0.1-1.fc27.x86_64
gnome-session-3.26.1-1.fc27.x86_64
gdm-3.26.2.1-3.fc27.x86_64
gnome-session-xsession-3.26.1-1.fc27.x86_64
xorg-x11-server-Xephyr-1.19.6-7.fc27.x86_64
gnome-session-wayland-session-3.26.1-1.fc27.x86_64
pulseaudio-gdm-hooks-12.2-1.fc27.x86_64
xorg-x11-server-Xorg-1.19.6-7.fc27.x86_64
xorg-x11-server-common-1.19.6-7.fc27.x86_64
xorg-x11-server-Xwayland-1.19.6-7.fc27.x86_64</pre>
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