Bug 112308 - Screen flickering with 4k resolution on Prairie Falcon
Summary: Screen flickering with 4k resolution on Prairie Falcon
Status: RESOLVED MOVED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/AMDgpu (show other bugs)
Version: unspecified
Hardware: Other All
: not set not set
Assignee: Default DRI bug account
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-11-18 07:14 UTC by Kai-Heng Feng
Modified: 2019-11-19 10:02 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
kernel message with iommu (2.40 MB, text/plain)
2019-11-18 07:15 UTC, Kai-Heng Feng 		no flags Details
kernel message without iommu (1.77 MB, text/plain)
2019-11-18 07:15 UTC, Kai-Heng Feng 		no flags Details
fix test (828 bytes, patch)
2019-11-18 16:34 UTC, Alex Deucher 		no flags Details | Splinter Review
View All

Description Kai-Heng Feng 2019-11-18 07:14:34 UTC 
The issue is still there on amd-staging-drm-next branch.

The issue is gone with kernel parameter "iommu=off".
Comment 1 Kai-Heng Feng 2019-11-18 07:15:16 UTC 
Created attachment 145984 [details]
kernel message with iommu
Comment 2 Kai-Heng Feng 2019-11-18 07:15:44 UTC 
Created attachment 145985 [details]
kernel message without iommu
Comment 3 Alex Deucher 2019-11-18 16:34:17 UTC 
Created attachment 145993 [details] [review]
fix test

Does this patch fix the issue?
Comment 4 Kai-Heng Feng 2019-11-19 04:43:26 UTC 
(In reply to Alex Deucher from comment #3)
> Created attachment 145993 [details] [review] [review]
> fix test
> 
> Does this patch fix the issue?

No, the same issue persists.
Comment 5 Martin Peres 2019-11-19 10:02:29 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/961.

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.