Dual-screen, mindblown, doesnt work.

[deywid12345]

Hi guys  my friend just bought brand new gtx 660 and he want to plug his two monitors, he wants do it that way.

Connect one screen with DVI-D and another one with DVI-I>D-SUB switcher and here's a problem.

When he connects DVI-D screen it works then he's connecting DVI-I screen but this one doesnt work.

When he connects DVI-I screen first it do work but when he connect DVI-D, DVI-I goes black.

What's wrong with it?

[TheNinjaNextDor]

Maybe use DVI and DP or HDMI.

[WinNut]

Why is he using VGA, unless he has a VGA only monitor?

[roberto++]

were both monitors connected before turning on the computer?

 

please also post monitor specifications

 

Hi guys  my friend just bought brand new gtx 660 and he want to plug his two monitors, he wants do it that way.

Connect one screen with DVI-D and another one with DVI-I>D-SUB switcher and here's a problem.

When he connects DVI-D screen it works then he's connecting DVI-I screen but this one doesnt work.

When he connects DVI-I screen first it do work but when he connect DVI-D, DVI-I goes black.

What's wrong with it?

[deywid12345]

1. DVI-D screen is Acer S230HL. 

2. Belinea 17' (pretty old) but it also have DVI connector.

 

These monitors have only D-SUB and DVI connectors. 

 

Today's Sunday all electronic stores are closed, friend decided to buy one more DVI cable.

 

@up

Yep I tried connecting while PC On/Off rebooting and stuff.