Question Dual monitor connected to notebook, but second screen is black

[Mohamed_HARDWARE]

Haai everyone,

I have two monitors and both of them works fine(i tried individual).
Monitor 1: Specs
Monitor 2: Specs
They have both VGA input and my noteook have HDMI and VGA input.
One is connected with VGA and the other one is connected from VGA to HDMI through a converter.

The problem is that the second screen shows a black screen. I can switch between those 2 screens but it doesn't show both of them.
In the display settings I see 3 screens where the third one is gray, look image.
Even the device manager shows 3 screens, look image.

My notebook has 2 GPU

1. Intel(R) HD Graphics 4000
2. NVIDIA GeForce GT 630M

Lenovo IdeaPad Z580

I read on the internet that I should enable to use both GPU in BIOS. But I don't have that option. Not even advanced option.
What can i do to fix this?

 

[white.a.drew]

Laptop?

 

[Mohamed_HARDWARE]

Laptop?

I'm sorry, notebook means in Dutch laptop. I mean notebook.

No wait, I think you understand what laptop means. But I don't understand you. You want specs of laptop?

 

[white.a.drew]

I'm sorry, notebook means in Dutch laptop. I mean notebook.

No wait, I think you understand what laptop means. But I don't understand you. You want specs of laptop?

Whats the model number and specs

 

[Prostar Computer]

Whats the model number and specs

It's in the original post.

Haai everyone,

I have two monitors and both of them works fine(i tried individual).
Monitor 1: Specs
Monitor 2: Specs
They have both VGA input and my noteook have HDMI and VGA input.
One is connected with VGA and the other one is connected from VGA to HDMI through a converter.

The problem is that the second screen shows a black screen. I can switch between those 2 screens but it doesn't show both of them.
In the display settings I see 3 screens where the third one is gray, look image.
Even the device manager shows 3 screens, look image.

My notebook has 2 GPU

1. Intel(R) HD Graphics 4000
2. NVIDIA GeForce GT 630M

Lenovo IdeaPad Z580

I read on the internet that I should enable to use both GPU in BIOS. But I don't have that option. Not even advanced option.
What can i do to fix this?

Hi Mohamed. Are you using a passive or active adapter for the VGA -> HDMI converter? (If passive, there's a good chance you need an "active" adapter.)

 

[Mohamed_HARDWARE]

Whats the model number and specs

Take this for specs.

It's in the original post.


Hi Mohamed. Are you using a passive or active adapter for the VGA -> HDMI converter? (If passive, there's a good chance you need an "active" adapter.)

VGA to HDMI there isn't passive. They all are active and if the product owner says it's passive than it's fake. That's what i read from the internet. But it doesn't matter because when I connect one monitor from VGA to HDMI I see display. But when i connect both monitors to laptop I get the option to select between which must show display.
But I want both monitors showing display.

 

[SHaines]

Haai everyone,

I have two monitors and both of them works fine(i tried individual).
Monitor 1: Specs
Monitor 2: Specs
They have both VGA input and my noteook have HDMI and VGA input.
One is connected with VGA and the other one is connected from VGA to HDMI through a converter.

The problem is that the second screen shows a black screen. I can switch between those 2 screens but it doesn't show both of them.
In the display settings I see 3 screens where the third one is gray, look image.
Even the device manager shows 3 screens, look image.

My notebook has 2 GPU

1. Intel(R) HD Graphics 4000
2. NVIDIA GeForce GT 630M

Lenovo IdeaPad Z580

I read on the internet that I should enable to use both GPU in BIOS. But I don't have that option. Not even advanced option.
What can i do to fix this?

Hey there,

I'm curious if the laptop screen is staying active when the two external monitors are hooked up, or if it goes black.

 

[Mohamed_HARDWARE]

Hey there,

I'm curious if the laptop screen is staying active when the two external monitors are hooked up, or if it goes black.

Yes, it's staying active.
I can choose between which monitor can stay active with the laptop screen. Only it doesn't do both monitor.

 

[Prostar Computer]

when I connect one monitor from VGA to HDMI I see display. But when i connect both monitors to laptop I get the option to select between which must show display.

I think I see what's going on. As far as I can tell, your model supports a maximum of two displays: One internal (built-in screen), and one external. Not a lot of definitive info on it, but there is this: https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Three-monitors-on-my-Z580/td-p/1148137

Your hardware is technically capable of driving multiple external displays, however it seems Lenovo did not design the laptop to do so. You'll have to get an external HDMI repeater/amplifier/splitter to run your external monitors simultaneously.

 

[Mohamed_HARDWARE]

Thank you very much!

 

[hang-the-9]

Adding a USB video card should allow you to run two displays along with the laptop screen. If you use a splitter you will just have both screens showing the same thing.

 

[Mohamed_HARDWARE]

Adding a USB video card should allow you to run two displays along with the laptop screen. If you use a splitter you will just have both screens showing the same thing.

I know, thank you for the info!