To start i just got the freak of the year and almost through the whole lot in the garbage.....
What ever you do if you are stacking monitors for instance:
1 4 5
DO NOT enable Hydra vision in Vista ........ i just upgraded to 9.3 and enabled Hydra vision after a reboot all my monitors leveled out and you can not stack them again. I was about to write ATI a very nasty letter. Luckily after disabling Hydra vision i can now re stack my monitors
OK back to the configuration/problem at hand.
Here's my setup I will have to reboot to linux to try whats mentioned.
MB: Asus M3A78-T with an ATI 3000 on board video card with VGA/DVI/HDMI out, currently monitor 1 is on the DVI out the other 4 are on the 4850's
In the BIOS of the MB i have set to boot from Onboard (i have tried turning this off and only using PCI-E with both cards but no difference, i can only get two big desktops, one for each card). I have also tried setting the Bios to PCI-E and with the On board as Surround (this is the proposed settings for using all cards) however Linux will not even boot with a IOUMMA error, says enable in the bios however there is no setting in the bios?
so currently it is boot from Onboard. I can get all cards up and monitors but only able to get one separate on on board and two big desktops one for each card with two monitors in it. This is using Multiview not xinerama.
However this is pretty usless as i need to be able to move windows between all screens.
I will boot into Linux and get the stuff you requested i will also upgrade to 9.3 in the Linux partition just in case.
Just a NOTE: if this is not doable there should be a HUGE warning put on the boxes of these cards this is going to be a very popular configuration as the prices plummeting for monitors and Linux is growing as a desktop environment.
Thanks for all the help i realize this is no one persons fault. but its a huge problem and waste of money if it can not work.
I am of course willing to try anything and help in anyway get to the bottom of this. Vista works fine (when not using Hydra) so it does not look like hardware. Its definitely Linux drivers or configuration.
I will post the info shortly.