Bug 42010

Summary:	[IVB] [3pipe] When running a fullscreen 3d app in 3pipe mode, all 3 pipes lose signal
Product:	DRI	Reporter:	Eugeni Dodonov <eugeni>
Component:	DRM/Intel	Assignee:	Jesse Barnes <jbarnes>
Status:	CLOSED FIXED	QA Contact:
Severity:	normal
Priority:	medium	CC:	ben, chris, daniel, eugeni, jbarnes
Version:	unspecified
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Eugeni Dodonov 2011-10-19 13:32:28 UTC

When running a fullscreen 3d app in 3-pipe mode (tested with openarena and nexuiz), all 3 pipes lose sync.

When switching to console, the output is working. And when switching back to vt7, the screen graphical content is present for a fraction of time, and then loses sync as well.

Nothing apparently suspicious in dmesg with drm.debug=0x04.

Comment 1 Jesse Barnes 2011-11-15 10:53:45 UTC

This one also works for me with ivb-3-pipe.  However, depending on the mode configuration I chose in nexuiz, the second and third heads didn't come up, and the X display configuration got really confused.  I was able to fix things again with the gnome display properties tool, and then ran nexuiz in 1280x1024 on 3 heads simultaneously (though not spread across heads, I don't think nexuiz supports that).

Comment 2 Jesse Barnes 2012-01-11 10:54:48 UTC

fixed in drm-intel-next

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