I am trying to connect two external monitors to my laptop for additional display space and can't get them both to connect. Each monitor is a bit older and I have a DVI-HDMI adapter connected to each, an HDMI cable then running from those to my laptop. However my laptop only has one HDMI port, thus only one monitor can connect. I just received a USB C-HDMI adapter that I ordered to use for the second monitor's HDMI cable to plug into my laptop, but my laptop doesn't detect the monitor. Help?