Thanks for your help friend, please suggest me the model number of graphic card of nvidia or amd in my circuimstance. Please,please...
Thanks for your reply and yes I am novice. I did not open the settings. My PC has only 3 display port viz, VGA, DP 1.4, HDMI 2.0b, out of this only VGA and HDMI is active all time and when I connect 3rd monitor with DP 1.4 port it remains inactive all the time. How to do it in settings?