[Bug 66871] New: Radeon multi-screen intermittent display failure

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=66871

            Bug ID: 66871
           Summary: Radeon multi-screen intermittent display failure
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.13.0-rc3
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: erik at emedwards.info
        Regression: No

In this kernel the 3rd display only comes on for a few partial frames every 20
to 40 seconds. Three displays attached to motherboard.

Under kernel 3.11.10, Radeon driver operates correctly. 


Using:
 ASRock FM2A85X-ITX MB
 AMD A10-6800k (Not overclocked)
 8 GB DDR3
 VGA montitor   - Dell flat screen - 19" 
 HDMI0 montitor - (via DVI connector) - Acer 23" flat.
 HDMI1 montitor - (via HDMI connector) - Acer 22" flat 

VGA is 1   - on an the left.
HDMI1 is 2 - in the center.
HDMI0 is 3 - on the right.

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