Bug 99779 - Lenovo Thinkpad E450 (Kaveri A6-7000 Radeon R4) Blank Screen after suspend (displayport link issues)
Summary: Lenovo Thinkpad E450 (Kaveri A6-7000 Radeon R4) Blank Screen after suspend (d...
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/AMDgpu (show other bugs)
Version: XOrg git
Hardware: x86-64 (AMD64) Linux (All)
: medium critical
Assignee: Default DRI bug account
QA Contact:
Depends on:
Reported: 2017-02-12 14:34 UTC by Kyle Brooks
Modified: 2019-11-19 08:13 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

dmesg 4.9.8 (70.03 KB, text/x-log)
2017-02-12 14:34 UTC, Kyle Brooks
no flags Details
Xorg log (25.00 KB, text/x-log)
2017-02-12 14:35 UTC, Kyle Brooks
no flags Details

Description Kyle Brooks 2017-02-12 14:34:43 UTC
Created attachment 129527 [details]
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:

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.
Comment 1 Kyle Brooks 2017-02-12 14:35:36 UTC
Created attachment 129528 [details]
Xorg log
Comment 2 Martin Peres 2019-11-19 08:13:09 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/132.

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.