[Bug 23421] New: dualhead - 2. monitor off (not just blank / black) on radeon; xrandr

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=23421

           Summary: dualhead - 2. monitor off (not just blank / black) on
                    radeon;  xrandr
           Product: xorg
           Version: 7.4
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: kapetr at mizera.cz
         QAContact: xorg-team at lists.x.org


Hello,

I have dualhead configuration - ATI Radeon 7000 with 2 attached VGA monitors.

new FEDORA 11:

But by booting is one of them switched off:
- without kernel param. - nomodeset (added to GRUB), the monitor is switched
off just before X start
- with nomodeset - is switchet off by X start.

In X: xrandr reports only 1 attached monitor (second port is reported as
"disconnected") - the same info is in /var/log/Xorg.0.log.

I have also try to use my elsewhere working predefined configuration in
xorg.conf, but also without effect.

The second monitor stays off :-((

On every other (older) OS I have ever tried: Ubuntu 8.04/8.10/9.04, Mandriva
2008/2009.1, Knoppix, SuSE 10.3/11.1, Windows XP, ....

I had not this problem.

Also - what is wrong ? Why do switch the monitor off ? Why reports, that the
monitor is disconnected - when it is not true ?

Thanks for help.


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