Not recognizing second monitor

[mart1985]

I bought a new Benq BL3200PT to run alongside my existing 27" DGM but my computer is not recognizing the second screen.

I have disabled the internal graphics and tried various different connections but nothing is working. I have also updated various drivers so graphics card, os etc are all up-to-date.

Any suggestions? I have limited knowledge with pcs so I have no idea what is going wrong!

 

[P_A_N_I_C]

Does the benq work on its own?

 

[mart1985]

I've managed to get them working by unplugging the DGM and connecting the Benq as my main monitor via hdmi and the DGM via DVI. I can't get the Benq to work via displayport though,which I don't understand.

My resolution on the Benq is also limited to the hdmi at the moment,which is not ideal.