Bug 56031

Summary:	Enabling radeon HDMI audio causes video corruption in unsupported hardware
Product:	Drivers	Reporter:	Thomas J. Moore (darktjm)
Component:	Video(DRI - non Intel)	Assignee:	drivers_video-dri
Status:	NEW ---
Severity:	low	CC:	szg00000
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	3.8	Subsystem:
Regression:	Yes	Bisected commit-id:

Description Thomas J. Moore 2013-04-01 00:55:58 UTC

I changed laptops from an r600 to an aruba, and accidentally left radeon.audio=1 in my kernel parameters.  This caused the external screen to be shifted right a bit and a pink stripe on the left.  This is due to change f92e70cae880e3540d0c1dddc64825b70f963703 which does not filter out DCE6 (since it is currently unsupported for HDMI) as it should.  The patch I have attached adds this restriction, but it might be better if somewhere early in the device initialization radeon_audio were just set to 0 if unsupported.