Bug 111733

Summary:	AMD Navi10 GPU randomly blanks display connected through HDMI
Product:	DRI	Reporter:	Timur Kristóf <venemo>
Component:	DRM/AMDgpu	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED MOVED	QA Contact:
Severity:	normal
Priority:	not set	CC:	alexandr.kara
Version:	DRI git
Hardware:	All
OS:	Linux (All)
Whiteboard:
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.

Hardware:
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

Software:
Fedora Workstation 30 x86_64
Gnome 3.32.2
LLVM 9 RC2
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.

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