Bug 98730

Summary:	On kernel startup, all monitors will go blank and stay blank with newest amd-staging-4.7
Product:	DRI	Reporter:	Guido Winkelmann <guido-xorgbugs>
Component:	DRM/AMDgpu	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED MOVED	QA Contact:
Severity:	critical
Priority:	medium	CC:	fdsfgs, vedran
Version:	DRI git
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Guido Winkelmann 2016-11-14 23:03:08 UTC

When booting with the newest kernel from the amd-staging-4.7 branch from https://cgit.freedesktop.org/~agd5f/linux/, all connected monitors will go blank and stay blank indefinitely. The power indicator on the monitors will start to blink as if there was no signal.

This is with commit 680da8633ae17cdea8fddd1ede87253325c8ca25. With an older commit, d330e1e9c232895dbd0c183a647d41d54ecc0884, this branch still works.

DAL is enabled in the config in both cases.

The graphics card is a Sapphire Nitro Radeon R9 380X.

There are three monitors connected in total, one to the DVI-I port, one to the DVI-D port and one to the DisplayPort.

I am using this particular branch as a workaround for the bug described in https://bugs.freedesktop.org/show_bug.cgi?id=91202

Comment 1 Martin Peres 2019-11-19 08:11:40 UTC

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