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Dual screen in XFree86 4

Posted on 2000-04-05
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Last Modified: 2010-04-20
I configured my XF86Config to support dual monitoring but my second monitor is kind of blinking. My primary screen worl properly, when I go to the left of the screen and when I attempt to continue with the mouse, it's disappear (like it's supposed to be beause it's supposed to reappear in the second screen).
so the second video card work if I place it on the first place.
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Question by:smaugwar
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Expert Comment

by:AbbasAhmed
ID: 2694231
You have not mentioned if the cards are same and if the cards are both PCI one AGP and other PCI. Please provide some info.
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Author Comment

by:smaugwar
ID: 2695409
I have one ATI mach64 VT and one ATI mach64 GT. The GT card is the first one. The two cards are pci.

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Accepted Solution

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tosi earned 400 total points
ID: 2707188
This has not much to do with your cards if your monitors are not the same. It looks to me as if your'e driving the sync of your second monitor too high. Although I've never installed a dual-head system myself before ( no such resources ) I suspect that by default XFree would try to run both displays at the same resolution. Try lowering your physical resolution a step or two down, then when you have that working, make a safe_house copy of your XF86Config and try fiddling with different resolutions ( tuning each card for it self )
Hope it works for you :)
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Author Comment

by:smaugwar
ID: 2717720
My second card was unable to sopport the refresh rate of the first card. I replaced ma second card by a Matrox, and it worked!
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