I went to another part of the BMC, and back to KVM, and the login prompt for Void appeared! All looks good and straight forward, except that it seems I can't configure the network. The first interface doesn't work with DHCP, and it seems the second interface isn't connected. This is a test machine provided by Raptor, and they haven't responded to my email, which is why I came to the forum.
What's annoying is that the KVM interface periodically blanks out, and the Refresh button doesn't work. I have to go to some other page, like Sensors, then back to KVM to see the screen. I have Void installed, but since DHCP and network information isn't provided, I'm at a point where I can't continue my evaluation.