Bug 111733 - AMD Navi10 GPU randomly blanks display connected through HDMI
Summary: AMD Navi10 GPU randomly blanks display connected through HDMI
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/AMDgpu (show other bugs)
Version: DRI git
Hardware: All Linux (All)
: not set normal
Assignee: Default DRI bug account
QA Contact:
Depends on:
Reported: 2019-09-18 13:42 UTC by Timur Kristóf
Modified: 2019-11-19 09:51 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:


Description Timur Kristóf 2019-09-18 13:42:19 UTC
There is an AMD Radeon RX 5700XT (reference card, made by Sapphire), which has two displays connected: one through HDMI, another through DP. The problem: the GPU sometimes randomly blanks the HDMI display while the computer is in use.

AMD Radeon RX 5700XT (reference card, made by Sapphire)
Dell U2718Q (two of them: one through HDMI, other through DisplayPort)
AMD Ryzen 7 3700X
MSI B450i

Fedora Workstation 30 x86_64
Gnome 3.32.2
Mesa 19.2 RC1

Could be related to this bug: https://bugs.freedesktop.org/show_bug.cgi?id=111481
Comment 1 Timur Kristóf 2019-09-18 13:43:53 UTC
Possible workaround: plug the HDMI out and in again, or hit Super+L to make Gnome lock the screen and put both monitors to idle. Then, upon unlocking, the HDMI monitor can come back.
Comment 2 Timur Kristóf 2019-09-26 11:26:15 UTC
There is no output from amdgpu in dmesg or xorg log, or the journal when this happens.
Comment 3 Martin Peres 2019-11-19 09:51:51 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/910.

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