How to setup dual monitors in redhat Linux?
Click the Console tab. Select the number of displays from the Monitors drop-down list. This setting controls the maximum number of displays that can be enabled for the virtual machine. While the virtual machine is running, additional displays can be enabled up to this number.
Does Linux support multiple monitors?
Depending on your distro, yes. I've had a dual-screen configuration on my Ubuntu system for a few years now with no issue. You will likely need to install the proprietary drivers to have access to it, but that's not too hard. The main limitation will be whether or not your video card can support multiple monitors.