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drm/amd/display: Fix system hang while resume with TBT monitor

Published Oct 21, 2024

Description

[Why] Connected with a Thunderbolt monitor and do the suspend and the system may hang while resume.

The TBT monitor HPD will be triggered during the resume procedure and call the drm_client_modeset_probe() while struct drm_connector connector->dev->master is NULL.

It will mess up the pipe topology after resume.

[How] Skip the TBT monitor HPD during the resume procedure because we currently will probe the connectors after resume by default.

(cherry picked from commit 453f86a26945207a16b8f66aaed5962dc2b95b85)

Affected products

Remediation

No remediation recorded yet.

References (13)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner Linux
Published Oct 21, 2024
Updated May 11, 2026
Reserved Oct 21, 2024
CISA Vulnrichment
Updated Oct 22, 2024
NVD
Status Modified
Modified Jun 17, 2026
Red Hat
Severity Moderate
Public date Oct 21, 2024
ENISA EUVD
Assigner Linux
Published Oct 21, 2024
Updated May 11, 2026
Exploited since n/a
EUVD-2024-45221