Steven Chall wrote:

...

I've just installed CentOS 6.2 on an HP xw8600 with two NVidia GeForce 8800 GT video cards in it. I have two Dell monitors than ran configured as a single contiguous desktop when this was a Windows 7 machine. I've only been able to access one of the two monitors under CentOS, although the system demonstrates some awareness of the second GPU/monitor, because

<snip> Either install the proprietary NVidia driver, d/l from their website, by hand, or install kmod-nvidia from elrepo, which will build it automagically. In either case, it will install an NVidia control panel in your menus, and you can select twinview.

   mark, on a Dell Precision with that as he types

<snip>

Thanks, Mark, B.J., the elrepo route worked. There was a small hitch in that the "Twinview" option wasn't available (it was present but grayed out) on the NVidia control panel, but entering nvidia-xconfig --twinview on the command line as root did the trick.

Steve

-Steve Chall Senior Research Software Developer Renaissance Computing Institute (RENCI) Phone: 919-681-9639 Email: stevec@renci.org