ATI 9550 + dodgy monitor = No X windows

[Rodney Schuler]

I have a ubuntu 9.04 installed.  I was using the integrated i845 chip set
graphics.  I am trying to upgrade to using a ATI 9550 card.  The monitor is
a dodgy gateway2000 Vivitron 1776.  This monitor works just fine, except no
video system seems to be able to pull the specs from this monitor.  No linux
distro has ever worked out of the box with this monitor.  I always have to
add a monitor section like:

Section "Monitor"
        Identifier  "Gateway Vivitron 1776"
        HorizSync  31.5 - 64
        VertRefresh  50-120
        Option  "DPMS"
End Section

To my xorg.conf.

Even windows does not correctly "see" this monitor.  Windows just defaults
to the lowest possible resolution and refresh and lets me point & click to
the resolution I want.

I have connected the dodgy monitor to the DVI port of ATI 9550 card through
a DVI->VGA adapter that I have used successfully on other system.  The
system displays the boot and BIOS screens without troubles.   The
alt-shift-fn terminals work but I can get no X11 style graphics.  I have
tried auto(re)configuring my xorg.conf.  I have hand edited my xorg.conf.
 Through all these changes I consistently get 2 errors
in /var/log/Xorg.0.log I am getting 2 errors.  Here are the lines around the
errors.  (Reproduced by hand - may have typos)

(II) RADEON(0): Output: VGA-0, Detected Monitor Type:0
finished output detect: 0
(II) RADEON(0): I2C device "DVI-0:E-EDID segment register" registered at
address 0x60.
(II) RADEON(0): I2C device "DVI-0:ddc2" registered at address 0xA0.
(II) RADEON(0): Output: DVI-0, Detected Monitor Type: 0
Unhandled monitor type 0
finished output detect: 1
(II) RADEON(0): Output: S-video, Detected Monitor Type:0
finished output detect: 2
(EE) RADEON(0): No connected devices found!
finished all detect
before xf86InitialConfiguration
(II) RADEON(0): Output: VGA-0, Detected Monitor Type: 0
(EE) RADEON(0): Using CRT default
(II) RADEON(0): Total number of valid Screen mode(s) added: 0
Unhandled monitor type 0
(II) RADEON(0): Output: S-video, Detected Monitor Type: 0
(II) RADEON(0): Output VGA-0 connected
(II) RADEON(0): Output DVI-0 disconnected
(II) RADEON(0): Output S-video disconnected

Here is my current xorg.conf

Section "Monitor"
        Identifier  "Gateway Vivitron 1776"
        HorizSync  31.5 - 64
        VertRefresh  50-120
        Option  "DPMS"
End Section

Section "Screen"
        Identifier  "Gateway Vivitron 1776 on Radeon 9550"
        Device  "Radeon 9550"
        Monitor  "Gateway Vivitron 1776"
End Section

Section "Device"
        Identifier  "Radeon 9550"
        Driver "ati"
        BusID  "PCI:1:0:0"
End Section

Section "ServerFlags"
        Option  "DontZap"  "false"
EndSection


So, what do I need to add to my xorg.conf to get the dodgy monitor to work
with the ATI 9550 card?  I think that I just need a way to tell the radeon
driver to ignore the auto detection results ad just output to that dvi port.
 How do I do that?

Thanks much
-Rodney
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