My PC doesn't detect the 2nd monitor.

[Sebastian_99]

I have Windows 7 and my main monitor is ASUS. I'm trying to add my second monitot(Samsung) and my PC doesn't recognise it. I've tried Nvidia multiple display,force finding,display settings from start menu but hopeless...Do you have any idea?

 

[The Paladin]

need more details, such as ;

what video card are you using make and model, also model of monitor and type of connector your using to connect to your video card

 

[Sebastian_99]

I have Nvidia GeForce gtx 660. Both monitor have VGA connector and my PC has 2 DVI ports but i already have attached DVI adapters for both monitors.

 

[The Paladin]

According to NVIDIA, The GTX 660 has One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
your monitors are VGA connectors, ok, and your using adaptors to connect the VGA connector to the DVI ports correct ?

so you are using 1 DVI-I to VGA and I am going to bet this is the monitor that actually works right now.
and the other DVI-D to VGA and this one does not work correct? or am I incorrect?

the dvi-vga adaptors are dvi-I to vga and DVI-D to vga are not the same adaptors

http://nvidia.custhelp.com/app/answers/detail/a_id/221/~/what-is-the-difference-between-dvi-i-and-dvi-d%3F

 

[Sebastian_99]

1st is working right now,it's true but the 2nd is also DVI-I to VGA and it's not working.

 

[The Paladin]

swap monitors (leave cables as is, does the 2nd monitor work with 1st cabling ?

 

[Sebastian_99]

I swapped the monitor and the 2nd still doesn't work. Maybe is a problem with the VGA cable(bought it yesterday)?

 

[The Paladin]

if you kept the cables in place and swapped monitors and the problem remains with the 2nd output you need now to physically swap entire video cables between ports and leave monitor in place ( to make proof it is either adaptor/cable. if so the problem will move now to first output, if not it will remain on 2nd indicating a video card issue. or adaptor issue.

 

[Sebastian_99]

I've done that and the 1st PC's output works for both monitors but the 2nd output doesn't want to cooperate.

 

[The Paladin]

looks like second port on it is no good somehow.

 

[Sebastian_99]

Thank you, sir, for all the help Have a great and happy new year!