[Bug 49322] New: No picture on display connected via Displayport adaptor to HD 7870

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Apr 30 22:54:20 PDT 2012


             Bug #: 49322
           Summary: No picture on display connected via Displayport
                    adaptor to HD 7870
    Classification: Unclassified
           Product: DRI
           Version: XOrg CVS
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: briancschott at gmail.com

Created attachment 60820
  --> https://bugs.freedesktop.org/attachment.cgi?id=60820
dmesg output

Radeon HD 7870
mesa 8.0.2
Kernel 3.4-rc5
X.Org X Server 1.12.0
xf86-video-modesetting 0.2.0

* Monitor is a DVI monitor connected to an active mini-displayport to DVI
* Output to all three screens functions in Windows.
* dmesg output and xrandr output are able to see the display and print out the
correct supported resolutions
* HDMI and DVI output are functioning correctly on the card.
* Using xrandr I'm able to get the X server to think that the display is
present and functioning. (I can place windows and the cursor on the screen)
* The display is in power-saving mode from the moment that the framebuffer
console initializes. I'm not able to get any image on it.

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