Twinview: DFP order problem

[Perret Yannick]

Hello,

I have a DELL D800 laptop with a 1920x1200
display, which works fine.
I'm using XOrg (6.8.2), and I want to connect
an external display (iiyama ProLite H481S), on
my VGA connector.
My video card is a GeForce4 Ti 4200 Go AGP 8x.

I declared twinview in xorg.conf, with (I think)
the needed values, and both screens work fine...
but I get the 'gdm' login on the external screen,
not the internal.

I tryed to permute the order of metamodes, and
it changed nothing.
I tryed to use ConnectedMonitor to force the
order of monitor, but it changed nothing.
And the way the mouse can go from one screen
to another shows that xorg/nvidia considers my
internal screen as the secondary one (the one
that is "RightOf" the other).

Anybody knows a reason for that?
And more important a way to correct that?

Here the "screen" section:
    Identifier  "Screen 1"
    Device      "NVidia"
    Monitor     "My Monitor"
    DefaultDepth 24

    Option        "TwinView"    "true"
    Option        "TwinViewOrientation" "LeftOf"
    Option        "ConnectedMonitor" "DFP, CRT"
    Option        "MetaModes"    "DFP: 1920x1200, CRT: 1280x1024"
#    Option        "MetaModes"    "DFP-0: 1920x1200"
#    Option        "MetaModes"    "DFP-0: 1920x1200, CRT-0: 
1280x1024;1440x900,1280x1024;960x600,1280x1024;800x600,1280x1024;1920x1200;1280x1024"
    Option        "NoMergedXinerama"    "true"
    Option        "EnablePageFlip"    "true"
(...)

(please note here that using "DFP and CRT" or "CRT and DFP" do not changed
anything).


Thank in advance.

Regards,
--
Yannick Perret