Debugging to second monitor

For reactos developers needs results of test on real hardware, but many users don't have this feature. I can debug reactos LiveCD on real hardware with help COM-port, which many modern computers don't have, or debug to screen, but only when system is loading. But sometimes need report about crashing of system when connected USB-flash or when running program, but user without com-port can't do it.

I have an idea - mode "second screen": Reactos have feature debugging to screen with loading. But, if at user connected second monitor and selected this mode, then after system loading, on first screen - reactos desktop, on second - debugging. And if after, eg, connecting of usb device, system is hangs, then user is photographed second screen and sends report.

But, for this, as i understand, need to implement support of second monitor. When i try to connect second monitor to laptop and load reactos, he don't work.