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I am looking at an Asus motherboard and it says :

Integrated Graphics Processor 
Multi-VGA output support : HDMI/DVI-D/RGB ports 
 - Supports HDMI with max. resolution 4096 x 2160 @ 24 Hz / 2560 x 1600 @ 60 Hz
 - Supports DVI-D with max. resolution 1920 x 1200 @ 60 Hz
 - Supports RGB with max. resolution 1920 x 1200 @ 60 Hz
Maximum shared memory of 1024 MB
Supports Intel® InTru™ 3D, Quick Sync Video, Clear Video HD Technology, Insider™
Supports up to 3 displays simultaneously

Having read the manual it's not clear if the three monitors it supports are {1 HDMI + 1 DVI-D and 1 RGB} or {3 HDMI covering the 4096*2160 area}.

I'd ideally like to support three HDMI monitors (without buying a graphics card), ie, to get the 4096 * 2160 split over two or three monitors with HDMI .

I'm noting looking to do any gaming, I just want a really good home set up for web dev and general computing. As I'm not going to be gaming I'd rather not get a separate graphics card.

Am I unaware of an obvious trick to support three monitors from a single port? Or do I have to get a graphics card to support multiple monitors via the same interface? Or (given that I have only one monitor at present) aim to get the subsequent ones over different interfaces? Although I have read that using a VGA port with a modern monitor is a waste of time.

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Multi-VGA output support : HDMI/DVI-D/RGB ports - Supports HDMI with max. resolution 4096 x 2160 @ 24 Hz / 2560 x 1600 @ 60 Hz - Supports DVI-D with max. resolution 1920 x 1200 @ 60 Hz - Supports RGB with max. resolution 1920 x 1200 @ 60 Hz Maximum shared memory of 1024 MB Supports Intel® InTru™ 3D, Quick Sync Video, Clear Video HD Technology, Insider™ Supports up to 3 displays simultaneously

Based on this information, yes it can support 3 monitors, 1 connection from the HDMI, 1 from the DVI-D and 1 from the VGA Port.

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Not all from 1 hdmi connection. And if using a VGA is a problem, get a VGA to DVI converter.

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edit: if you really want a full DVI/HDMI with upto 4 monitors I'd recommend looking into higher end stand alone video cards that normally support 2 dvi, 1 hdmi, and 1 display port. Or other combinations that don't include VGA.

  • That VGA to DVI converter will only work if your monitor supports DVI-A. It will not work for all DVI monitors. – Nick2253 May 21 '14 at 21:24
  • Great, thanks. I thought I had once seen a cable which split a single HDMI (or DVI) into two, so that a single port powered two monitors, and wondered if I had to find a three way splitter but what you've both said makes sense. – Badgerspot May 22 '14 at 15:24

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