Wow, no one wants to touch this one, eh? LOL
How about another direction? I'll switch cards if I have to... Can anyone
recommend a completely different card, (Nvidia maybe?) that would run two
digital monitors well on Vista Ultimate, and use completely different
drivers? Something that Vista seems to get along with, of course...
"Kris" <Kris@discussions.microsoft.com> wrote in message
news:FCA6D8EF-E3EB-4B4D-A47A-FE348373DA3C@microsoft.com...
>I have been running Vista Home Premium with an ATI x1600Pro for a couple of
> months, and it always showed the video adapter driver twice in the Device
> Manager (Primary and Secondary - the card supports 2 monitors). I ordered
> a
> second monitor (same model as current one, Dell 1907fp ultrasharp) and
> upgraded to Vista Ultimate at the same time. Now under Ultimate in the
> device
> manager, there's only one video adapter showing, and it refuses to
> acknowledge the second monitor (the light on the monitor is solid amber).
> The
> secondary port DOES show up in the Device Manager in safe mode! I am not
> sure
> if the secondary port disappeared after upgrading to the 7.4 ATI drivers,
> or
> after the upgrade to Ultimate; unfortunately I wasn't looking at that at
> the
> time 
but it seems like one of them must be the culprit.
>
> I've tested the monitors and cables on another system, done all the
> updates
> for both ATI and Dell, reseated the card, and swapped cables and monitors,
> and finally even bought another video card (this time the ATI x1650 Pro),
> same results. When the monitor 2 is unplugged, it shows the self-test
> screen,
> when plugged in it says "2: Digital Input In Power Save Mode" when I push
> the
> Menu button.
>
> When I picked up the new video card, I uninstalled the ATI drivers, and
> switched out cards. Vista loaded it's default drivers, and BOTH ports
> showed
> up in the Device Manager, but no way to extend the desktop to the other
> monitor on basic drivers, and the system blue screens on bootup. As soon
> as I
> put in the current ATI driver, *poof* no second port. Oddly, when I turn
> the
> blank monitor off and back on, the device manager will refresh itself, so
> it's getting SOME sort of signal...
>
> The computer is a Dell XPS410, with 2gb ram, and I spent a good 4 hours
> with
> Dell support, so I'm fairly sure all that is working fine.
>
> I've got a ticket submitted to the ATI folks days ago, but no answer yet.