https://bugs.freedesktop.org/show_bug.cgi?id=99779
Bug ID: 99779
Summary: Lenovo Thinkpad E450 (Kaveri A6-7000 Radeon R4) Blank
Screen after suspend (displayport link issues)
Product: DRI
Version: XOrg git
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: critical
Priority: medium
Component: DRM/AMDgpu
Assignee: dri-devel@lists.freedesktop.org
Reporter: brook...@gmail.com
Created attachment 129527
--> https://bugs.freedesktop.org/attachment.cgi?id=129527&action=edit
dmesg 4.9.8
If I shut my laptop lit it suspends, then when opening the lid and resuming I
get a blank screen and am unable to get the display to work again unless I
reboot. I can ssh into computer and I get displayport link errors in the
attached dmesg log.
This issue does not occur if I use the radeon kernel module instead of amdgpu.
This seems very similar to bug 90320 but I filed this one because it is amdgpu
not radeon:
https://bugs.freedesktop.org/show_bug.cgi?id=90320
I've also attached the Xorg.0.log but it does not have any errors indicated.
It indicates successful exit because I stopped the server over ssh and tried to
restart gdm a few times which is why there are multiple displayport link status
failed messages in dmesg.
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