3 Monitor Problem

[daltojam]

Hi,

I have 3 monitors (2x18.5" Asus VS197DE and 1x34" Ultrawide LG 34UM68).

My graphics card is an MSI GTX 970.

The LG is plugged in using a DP to DP cable.
One Asus is plugged in using a DVI-I to VGA, the other with HDMI to VGA.

I haven't used any adapters on the ends of the cables. I just ordered them for this purpose.

Some people have talked about active adapters in similar questions, but I'm not quite sure what that means, since the cables I bought were made for these connections.

Thanks in advance for your help.

 

[Mousemonkey]

The GTX970 only outputs one analog signal so you can't use the HDMI to VGA cable unless it has a built in DAC (Digital to Analog Converter).

 

[daltojam]

The GTX970 only outputs one analog signal so you can't use the HDMI to VGA cable unless it has a built in DAC (Digital to Analog Converter).

Do I need to buy a DAC for the cable? Or do I need to use the DVI-D port?

 

[Mousemonkey]

Your card only outputs ONE analog signal through the DVI-I port, the DVI-D port does NOT output an analog signal nor does the HDMI port, this is why an ACTIVE adapter is required.

 

[Glenwing]

Hi,

I have 3 monitors (2x18.5" Asus VS197DE and 1x34" Ultrawide LG 34UM68).

My graphics card is an MSI GTX 970.

The LG is plugged in using a DP to DP cable.
One Asus is plugged in using a DVI-I to VGA, the other with HDMI to VGA.

I haven't used any adapters on the ends of the cables. I just ordered them for this purpose.

Some people have talked about active adapters in similar questions, but I'm not quite sure what that means, since the cables I bought were made for these connections.

Thanks in advance for your help.

So... what exactly is the problem? One monitor not working? All three not working?

The GTX970 only outputs one analog signal so you can't use the HDMI to VGA cable unless it has a built in DAC (Digital to Analog Converter).

What HDMI to VGA adapter wouldn't have a DAC? HDMI doesn't support passive VGA adapters, so they don't exist.

 

[Mousemonkey]

The GTX970 only outputs one analog signal so you can't use the HDMI to VGA cable unless it has a built in DAC (Digital to Analog Converter).

What HDMI to VGA adapter wouldn't have a DAC? HDMI doesn't support passive VGA adapters, so they don't exist.

Ones like this :-

they do exist and they don't work.

 

[Glenwing]

The GTX970 only outputs one analog signal so you can't use the HDMI to VGA cable unless it has a built in DAC (Digital to Analog Converter).

What HDMI to VGA adapter wouldn't have a DAC? HDMI doesn't support passive VGA adapters, so they don't exist.

Ones like this :-

they do exist and they don't work.

There are plenty of active adapters that look like that:
For example: https://www.amazon.com/XF-TIMES-Adapter-Digital-Converter/dp/B01LAYVT0O/

I'm sure someone somewhere sells a fake HDMI to VGA adapter with no converter inside but it's hardly a widespread concern.