I have a
MSI Z87-G43 motherboard with
i5-4670K CPU. When I connect two monitors to the onboard graphic card (1xVGA and 1xDVI) both screens are black, there seems to be a connection when the pc is turned on (i.e it says "DVI, or VGA") but nothing actually shows.
If I only connect one of them then it all works fine. If I connect a second screen while in Windows 8 the computer will hang (no ctrl+alt-del, no nothing).
The setting for dual monitor is also enabled in the BIOS.
The graphics drivers and BIOS are updated.
Can you please post you dxdiag report and your graphics report?
To get dxdiag report: Start> type dxdiag> Click on save.
To get the graphics report: Open the Graphics Control Panel> Options> Information center> Save.