[Bug 66934] New: ATI HD 7870 with two monitors doesn't work

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=66934

          Priority: medium
            Bug ID: 66934
          Assignee: xorg-driver-ati at lists.x.org
           Summary: ATI HD 7870 with two monitors doesn't work
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: me at elemc.name
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/Radeon
           Product: xorg

Created attachment 82452
  --> https://bugs.freedesktop.org/attachment.cgi?id=82452&action=edit
dmesg with drm.debug=1

Description of problem:
I have installed new video card
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Pitcairn XT [Radeon HD 7870 GHz Edition] [1002:6818]
with two monitors. After login in DE (KDE, Gnome, etc) first monitor shown in
blue strips, second monitor disabled. System don't freeze, but monitors
freezes.

Version-Release number of selected component (if applicable):
kernel-3.9.9-301.fc19.x86_64 (and 3.10.0-1.fc19.x86_64 and with drm-next too)
xorg-x11-drv-ati-7.1.0-5.20130408git6e74aacc5.fc19.x86_64 (and git 2013-07-10
too)

How reproducible:
All time

Steps to Reproduce:
1. Plug videocard
2. connect two monitors (both DVI)
3. boot and login

Actual results:
monitors doesn't work

Expected results:
both monitors works

Additional info:
Videocard after 23 jan 2013 (not defective). 
Perfectly works with proprietary driver. And with one monitor works too
(open-source driver).

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