I've seen posts about this for SP2 but not much for SP3. I have the i5 8Gb version of the SP3. It is connected to 2 Dell U2414 (1080p) monitors via mini-display port and then daisy chained to the 2nd monitor. I have enabled the DP 1.2 mode on both Dell monitors. I can display the screen on both Dell monitors with extended mode enabled. However, the SP3 screen is disabled. Anyone have a solution. Is there something I'm missing? My understanding was that Sp3 i5 could display all 3 in this situation. Also, as it is now, the daisy chained monitor (end monitor) flickers intermittently.