3 Monitors Not Working ATI 5750

[F1aw1ess]

Hi,

I've got 3 monitors that I have been using perfectly happily on Windows 7 for the past year.

I have had to go back to Windows XP due to an unrelated problem and since the reinstallation I can only get 2 monitors to work at the sametime.

I have the setup as follows;

2 x DVI
1 x DisplayPort (built into monitor, not an adaptor)

The graphics card and Windows Device Manager see's the 3 monitors but will not let me activate them all together.

Is this not possible in XP?

 

[ALXAndy]

Is this not possible in XP?

I don't think it is, no.

Eyefinity and Surround work by tricking the WHDM? driver in Windows 7 into thinking that three monitors are actually two monitors, then glueing them together in the middle.

XP does not use that technology.

 

[F1aw1ess]

I know the setup is okay because Looking at the picture I can click on the disabled monitor and try to drag it into the display window and the only option I get it swap.

If I select swap it works fine the 3rd monitor kicks in and the 2nd stops.

 

[ALXAndy]

This describes what I was saying.

The drivers basically hack the way that Windows 7 sees monitors and then as I said, glues them together in the middle. So basically instead of seeing three displays and joining them it sees the three as two and then joins them.

So basically Windows is being fooled into seeing two screens. Let's say you had three 1080p screens, Windows is convinced you have two that are 1620 pixels wide and then joining them, instead of seeing three 1080 pixels wide and joining them.

XP does not use WHDM and thus, I would strongly imagine won't work with Eyefinity.

 

[F1aw1ess]

Thanks for the help but I just want 3 monitors working on an extended desktop with say monitor 2 as the main with the start menu on it and the other 2 as additional real estate.

It may work on the same principle and still not be possible but Eyefinity is not what I'm looking to accomplish.

 

[F1aw1ess]

like this

 

[F1aw1ess]

could I use 2 outputs on the 5750 and then the onboard VGA as the third monitor to accomplish the same thing so you think?

 

[ALXAndy]

http://www.microsoft.com/resources/...display_multi_monitors_overview.mspx?mfr=true

 

[Orcvader]

could I use 2 outputs on the 5750 and then the onboard VGA as the third monitor to accomplish the same thing so you think?

You can yes.

From the looks of CCC it looks like an old one? Are you using the latest drivers?

 

[tribz]

You can yes.

From the looks of CCC it looks like an old one? Are you using the latest drivers?

I'm not sure you can? Installing a card normally disables the onboard graphics.

 

[F1aw1ess]

i thought that too but it must be because its xp, its def 12.1

 

[Orcvader]

I'm not sure you can? Installing a card normally disables the onboard graphics.

Some motherboards have the option to have it enabled even with a discrete GPU. Just need to find it in the BIOS.

I guess that means it doesn't work in XP then... Guess you have to run the third one off the integrated if you can enable it in the BIOS.