I have a Viewsonic VP191b screen which I have used with my other laptop in a vertical position for my work. I purchased the HP HDMI to VGA converter. The Viewsonic is 1080 x 1240. The Envy screen is 1920 x 1080. In the vertial position, with the appropriate driver, it is 1280 x 1024.
First, I find that if I use the dual-monitor extended display option, it messes up my laptop screen, limiting it to 1024 x 1280. So I lose nearly 70% of my monitor space. Second, it will not allow for individual monitor detection. I need independent extended display. I need the second monitor in vertical position.
This is extremely serious to me. I need BOTH screens for my work. If this is not resolvable, my purchase of these HP products was a waste.