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HD 4000 does not activate 3rd monitor on TB connection

DH_1
Beginner
2,246 Views

Hey guys,

Now that I bought 3 new monitors due to the blackscreen issue I have a new problem

ok

GA-Z77X-UP5 TH with a i7 3770k ivy.

Can't figure this one out.... I have been reading extensively the MOBO manual and forums. I know about lots of issues and I thought I bought the right things to not have these problems.

I can only get 2 of three monitors on at one time with HD4000

I specifically built this machine with THIS MOBO to use WITHOUT a video card since intel and gigabyte were HERALDING this so loudly. I am NOT getting a ded. video card--DO NOT TELL ME TO I NEED ONE.

you can see the mobo will support 3 monitors:

http://www.gigabyte.us/products/product-page.aspx?pid=4279&dl=1# ov GIGABYTE - Motherboard - Socket 1155 - GA-Z77X-UP5 TH (rev. 1.0)

ALL MONITORS ARE THE SAME

ALL OF MY ADAPTERS WORK PERFECTLY from monoprice TB>DVI I had all 3 monitors visible at some point when switching them around so I know for a fact the adapters are not the issue.

Here is the setup.....

monitor 1: thunderbolt port # 1 out > TB/DVI adapter > DVI monitor input

monitor 2: thunderbolt port # 2 out > TB/DVI adapter > DVI monitor input

monitor 3: HDMI out > HDMI/DVI Adapter > DVI monitor input

ONCE AGAIN ****ALL OF MY ADAPTERS WORK PERFECTLY*****

windows Graphics sees all 3 and I can switch between them, but all 3 will not work at same time.

Intel graphics only shows 2 monitors....

windows graphics sees the 3rd monitor but I cannot extend the desktop to it.

I have the latest driver and latest BIOS

What is the deal?

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2 Replies
Kevin_M_Intel
Employee
1,195 Views

Hello lyt,

There is a configuration so that you can get triple monitor configuration in your system. The configuration is the following:

DisplayPort* + DisplayPort + HDMI* or DVI or VGA or DisplayPort or Built-in Display2

DisplayPort or HDMI or DVI or VGA + DisplayPort or HDMI or DVI or VGA + Built-in Display3

DisplayPort or HDMI or DVI or VGA or Built-in Display2 + DisplayPort or HDMI or DVI or VGA + Intel® Wireless Display (Intel® WiDi)

You can check this information at the following link:

http://www.intel.com/support/graphics/sb/CS-033714.htm http://www.intel.com/support/graphics/sb/CS-033714.htm

It is important to mention that using adapters may interfere in the signal causing problems that can affect the multiple monitor configurations.

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DH_1
Beginner
1,195 Views

Thanks Kevin.

Robert U has replied to another thread that he is using passive adapters with no problems w/ screenshots.

No matter what I try, I can only get 2 of the 3 monitors to work simultaneously.

The monitors only take VGA or DVI, but I prefer not to use the VGA at all, it is 2013.

The only thing I can think of is that because there are 3 DVI monitors, and the HD4000 only puts out 2 DVI clocks, so I need a third active adapter since the signal for DVI is different than for DP. However it has been brought up that monitors that are the same... should be able to share a clock, so why does Intel HD graphics panel only show 2 monitors, while windows recognizes all 3?

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