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* [Bug 107731] radeon (amdgpu) DisplayPort loss of max-resolution on DP monitor (after monitor power saving / idle)
@ 2018-08-29  1:37 bugzilla-daemon
  2018-08-29  1:38 ` bugzilla-daemon
                   ` (15 more replies)
  0 siblings, 16 replies; 17+ messages in thread
From: bugzilla-daemon @ 2018-08-29  1:37 UTC (permalink / raw)
  To: dri-devel


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https://bugs.freedesktop.org/show_bug.cgi?id=107731

            Bug ID: 107731
           Summary: radeon (amdgpu) DisplayPort loss of max-resolution on
                    DP monitor (after monitor power saving / idle)
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: freedesktop-bugs@fermulator.fastmail.org

Created attachment 141328
  --> https://bugs.freedesktop.org/attachment.cgi?id=141328&action=edit
dmesg output post DP disconnect + reconnect to fix resolution

as an extension of the story from:
 * https://bugs.freedesktop.org/show_bug.cgi?id=107560#c9

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          : https://www.x.org/wiki
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

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