[Bug 20225] New: [HD3470 + HD3200] Dual cards prevents X from starting / black screen

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=20225

           Summary: [HD3470 + HD3200] Dual cards prevents X from starting /
                    black screen
           Product: xorg
           Version: 7.4
          Platform: Other
               URL: https://bugs.edge.launchpad.net/ubuntu/+source/xserver-
                    xorg-video-ati/+bug/311748
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: high
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: bryce at canonical.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=23121)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=23121)
Xorg.0.log from an earlier -ati version.  More recent -ati's give the same
errors

[Problem]
X gets confused by the presence of two primary graphics devices, resulting in
"no screens found" and X exiting.  It also gives this warning:

  (!!) More than one possible primary device found

This issue was first seen in Intrepid (6.9.0+git) but is also still being seen
in Jaunty.  It is seen with a variety of drivers including radeonhd (see fdo
bug #19513), and it seems to crap out before the driver starts printing its
messages, so might rather be an xserver issue, but filing here against -ati
just in case.

[Original Report]
The specs:
Asus x56tr Notebook
AMD TURION X2 64
ATI 3200 & ATI HD3470
RAM 4GB

I can install Intrepid Ibex, but my graphics cards don't work in Intrepid.

Installing Ubuntu only works with the extra boot options acpi=off or MAXCPUS=1.
Ubuntu Intrepid installed, but i couldn't get any GUI. The x-server tried to
start but failed. I also cannot switch to terminal using crtl-alt F1, because X
keeps trying. sometimes i get the error message: no screens found. I tried ati,
radeon, vesa, radeonhd. I tried installing the official ati-drivers. Nothing
worked, then after hours of mindbreaking i installed Hardy Heron, IT worked!
Installed the restricted drivers and the screen looks nice. No sound though and
no wireless.

How can i get Intrepid Ibex to work? I read somewhere that xorg 7.4 could be
the problem or the 4GB of RAM. Don't know how to fix this though. Latest
versions of Mandriva and OpenSuse also do not run from livecd or install and
suse complains about the graphic card.

[lspci]
00:00.0 Host bridge [0600]: Advanced Micro Devices [AMD] RS780 Host Bridge
[1022:9600]
     Subsystem: ASUSTeK Computer Inc. Device [1043:11e7]
01:05.0 VGA compatible controller [0300]: ATI Technologies Inc RS780M/RS780MN
[Radeon HD 3200 Graphics] [1002:9612]
     Subsystem: ASUSTeK Computer Inc. Device [1043:1062]
02:00.0 VGA compatible controller [0300]: ATI Technologies Inc Mobility Radeon
HD 3400 Series [1002:95c4]
     Subsystem: ASUSTeK Computer Inc. Device [1043:1875]


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