Can not set up 3 monitors with Intel HD Graphics 4000

[bkim21]

I am using these in Windows 7.

- DELL Latitude E6430 laptop (Intel Core i5-3320M CPU + Intel HD Graphics 4000)

- DELL Port Replicator which has 2 Display Ports + 2 DVI ports + 1 VGA port

- 2 External Monitors ( Lenovo ThinkVision T2424p )

I am using only Intel HD Graphics 4000 (v 10.18.10.4176)

I'm trying to set up 3 monitors ( 2 External monitors + 1 Built in Laptop Monitor (Connector Type : LVDS) )

I connected 2 external monitors (Lenovo ThinkVision T2424p ) using 2 Display ports connectors with DELL Port Replicator.

There are only 2 monitors enabled in 'Intel Graphics Control Panel'.

But I can not set up 3 monitors.

I attached my screenshots and 'dxdiag' output.

I can see 3 monitors in Windows 7 Control Panel -> Display Configuration.

But I can enable only 2 monitors of them.

I can not enable 3 monitors simultaneously.

Please help me with this problem.

I really want to set up 3 monitors.

I bought monitors and display cables in order to set up 3 monitors based on the url here.

http://www.intel.com/content/www/us/en/support/graphics-drivers/000005556.html?wapkw=3-displays Configuration 3 Displays FAQ for Graphics Drivers

http://www.dell.com/support/article/us/en/04/SLN115952/en How to configure three (3) displays on a Dell Latitude Portable with Intel HD 4x00 Graphics | Dell US

Please help me.

[Amy_C_Intel]

Hello bokim,

3 display configuration requires your computer to have 1 Display port or 1 embedded display port as minimum requirement. I see the docking station or port replicator is providing you with 1 display port, please bear in mind that docking station and port replicators are considered video adapters therefore, the multimonitor functionality might be affected.

Regards.

[bkim21]

Hello,

First of all, thanks for your help.

Can you do me a favor ?

Can I ask some questions ?

I'm using 'DELL E/Port Plus for E Family'.

The port replicator has 2 display ports, 2 DVIs, 1VGA.

And I got an answer from DELL.

DELL support team said it supports 3 monitors (1 built-in + 2 external).

But you said, " I see the docking station or port replicator is providing

you with 1 display port ..."

1. Do you mean there's a problem with the port replicator ?

2. Can you tell me what it's based on ?

Is it based on the output of 'DxDiag.txt' file ?

If you provide the proof of port replicator problem, I can trasfer it to DELL support team.

Thanks

[Amy_C_Intel]

1. Not really, the port replicator seems fine, I mean the video port configuration.

2. In order to make the Intel graphics controller work with a 3 display configuration your computer (laptop) requires to have 1 Display port or 1 embedded display port as minimum requirement, which is something that your computer does not have according to its specifications, http://www.dell.com/downloads/global/products/latit/dell_latitude_e6430_spec_sheet.pdf http://www.dell.com/downloads/global/products/latit/dell_latitude_e6430_spec_sheet.pdf, the port replicator is replicating something that is not in your computer therefore there is not 3 display configuration.

Regards.

[bkim21]

I had a phone call with one of DELL engineers.

He confirmed serial numbers of my laptop and port replicator.

He said that the DELL Latitude E6430 laptop + E plus port replicator (which I have) supports 3 monitors.

Is there any way to check if there's a problem with Intel HD Graphics 4000 driver ?

Thanks

[Amy_C_Intel]

There is no problem with the driver, liked mentioned before in order to make the Intel graphics controller work with a 3 display configuration your computer (laptop) requires to have 1 Display port or 1 embedded display port as minimum requirement, please note the picture below;

For further reference http://www.intel.com/content/www/us/en/support/graphics-drivers/000005556.html?wapkw=3-displays Configuration 3 Displays FAQ for Graphics Drivers.

Regards.

[bkim21]

You are totally wrong.

The root cause was in the Intel HD Graphics 4000 driver.

Finally I solved the 3 monitors issue myself.

Now I am able to see 3 monitors.

Solution

-------------

- downgrade the Intel HD Graphics 4000 driver. (10.18.10.4176 -> 9.17.10.3040)

- set the 'Active Display' as '3' in 'Intel Graphics and Media Control' -> 'Multiple Display'.

Happy New Year !

[Muratdede]

I wish you wrote it on your link my friend, I have the same problem.

[Amy_C_Intel]

I am glad to hear that you were able to resolve your issue. Your feedback is important to us and I thank you for taking the time to share your outcome.

Regards,

Amy.

[JMano1]

Hi are you going to fix this problem?

I was using driver version 9.17.10.3040 with 3 monitors (Built In Display & 2 X Display Port).

I updated the driver to 10.18.10.4176 and I only have the option to output to 2 monitors at the same time.

3 Monitors are detected but one has to be disabled at any one time.

Please look into this problem, we can't use the latest drivers because of this issue. @Amy_Intel

[Amy_C_Intel]

Hello, alexjaya:

Please create a new thread, fill out the following form and post it on the new thread, follow my instructions closely so we can isolate your case.

Regards,

[n_scott_pearson]

He did. I answered there.

...S