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I've got 740 Radeon with to outs for monitors. Do you know how can i configure second out to work ?

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I just plugged mine in and it worked, so you're going to need to add more details. – Ignacio Vazquez-Abrams Oct 15 '10 at 22:34
Welcome to Open Source! – Oct 15 '10 at 22:45

Had the same problems with a Radeon x1400 in Ubuntu. Finally, I was able to activate the external out with xrandr. In Ubuntu, it can easily be installed if it isn't already.

But as mentioned, you need to give more information: Which OS? What "outs", vga, dvi ?

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