Okay I got Dell U2713HM, it is very nice monitor but my problem is when I connect my 2012 Macmini to it using minidisplayport to DVI cable or using HDMI, it is not showing anything more than 1920x1080. Can someone help with the settings ? I looked up under system preferences -> display setting but the max it shows is 1920x1080 although it recognizes monitor as U2713HM