Resolution is 1920 x 1080. As far as DPI from what I can see in Windows 10 is I go into display settings. Then my "Change the size of text, apps. and other items is set at 150% which is recommended. I will try changing that and see what happens. Pretty sure this is what I had when it worked before. But I've been wrong before. lol I am using a 40" tv as my monitor also.