Im using a laptop with a second monitor but bucause my laptop only has one hdmi output in using a usb a to hdmi adapter it worked fine for 5 moths but after a Windows update is stopped working. I found put that it is working in 1680 X 1050 but my monitor is 1920 x1080. If i change the resolution to 1920 x 1080 it wil dat no signal but in 1680 x 1050 or lower it does work. have tryed everything that i could find but nothing worked like updating my drivers. I even uninstaled that Windows update but stil didnt work. Now i did reset my whole pc and stil not does not work in the right resolution. Does anyone now how to fix this let me know Please.