Bug 103700

Summary: Displayport link status failed on resume from suspend on eDP on RX580 with Asus GL702ZC
Product: DRI Reporter: Hein-Pieter van Braam <hp>
Component: DRM/AMDgpuAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED MOVED QA Contact:
Severity: normal    
Priority: medium CC: FD
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
dmesg of a suspend/resume cycle. none

Description Hein-Pieter van Braam 2017-11-13 00:31:02 UTC 
Created attachment 135429 [details]
dmesg of a suspend/resume cycle.

When resuming from suspend on my Asus GL702ZC the internal eDP screen does not turn back on, neither does the backlight. External screens (normal DP) are not affected and continue working. 

I'm running 4.14.0 on this machine. My kernel .config is here in case that is helpful: https://notabug.org/hp/linux-gl702zc/src/master/.config

I see the following errors in dmesg:

[ 1667.119776] [drm:amdgpu_atombios_dp_link_train [amdgpu]] *ERROR* displayport link status failed
[ 1667.119785] [drm:amdgpu_atombios_dp_link_train [amdgpu]] *ERROR* clock recovery failed
[ 1667.687497] [drm:amdgpu_atombios_dp_link_train [amdgpu]] *ERROR* displayport link status failed
[ 1667.687505] [drm:amdgpu_atombios_dp_link_train [amdgpu]] *ERROR* clock recovery failed

When using drm-next-dc the screen does turn on but the system crashes shortly afterwards. I have not been able to get any meaningful debugging data out of that configuration yet.

Attached is the full dmesg of the system.
Comment 1 Hein-Pieter van Braam 2017-11-13 00:34:54 UTC 
I forgot to mention: I run Fedora 27 in userspace with Xorg.

The following package versions may be relevant:

xorg-x11-server-Xorg-1.19.5-1.fc27.x86_64
xorg-x11-drv-amdgpu-1.3.0-3.fc27.x86_64
mesa-dri-drivers-17.2.4-1.fc27.x86_64
libdrm-2.4.85-1.fc27.x86_64
Comment 2 dwagner 2017-11-13 23:38:13 UTC 
This bug could be the same as https://bugs.freedesktop.org/show_bug.cgi?id=103277 - but since I have only one display connected to the GPU - which stays off after resume (and then the system crashes so no other way to look at dmesg output) - I had no chance to see error messages like the ones you reported.
Comment 3 Harry Wentland 2017-11-14 15:34:48 UTC 
dwagner, these are different issue. This one was reported on a kernel without DC, the other with DC.
Comment 4 Martin Peres 2019-11-19 08:25:57 UTC 
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