My cheap-ish Samsung (cheap for a QHD) has an HDMI and a DisplayPort input. If I hook up a laptop to each input, both laptops think the screen is on- even the one who is not currently being displayed.
Does anyone know of a list of CRT monitors with dual input, either D-sub or BNC? If not, if you know for sure a model has dual inputs I'd be grateful if you'd pass the model name along. I'm looking ...