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Second monitor not working


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#1
dvd7e

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Hi I have a Revolve 810 EliteBook and I'm trying to get a second monitor hooked up to it. The only video output from the Revolve is HDMI, and it came with a cord that is HDMI to DVI. My monitor only takes VGA input though, so I got a DVI to VGA adaptor....but it still doesn't work. I did the 'ole right-click then Screen Resolution and tried to Detect monitors and extend my display (I've done that a thousand time on other computers/monitors) but it fails to recognize the monitor. I hooked up the monitor to another computer with a straight VGA-VGA and it works, so I know the monitor works OK.

 

Any idea on how to get the 2nd monitor working?

 

Thanks!

 


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#2
iammykyl

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Gday.

I thin< you need a HDMI to VGA, but this type, (passive) may not work if the notebook HDMI port does not have enough power output, > http://www.newegg.co...N82E16812400359

Or this type, (powered) >http://www.dx.com/p/hdmi-to-vga-video-converter-71816#.VEXFXCKUc_0 


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#3
terry1966

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the reason why it doesn't work is because hdmi is a digital signal and vga is an analogue signal.

 

so you need to buy a cable adaptor that will convert the digital signal output into an analogue signal as shown in above post and links.

 

:popcorn:


Edited by terry1966, 20 October 2014 - 11:01 PM.

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#4
iammykyl

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Gday.

It has been a while since we heard from you, an update would be appreciated.   Have you resolved your problem?   Do he need any more help?


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#5
dvd7e

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I haven't resolved the problem yet, but I don't think there's anything else that others could help with. I just need to decide whether I want to spend the money to try one of those solutions out.

I appreciate the help though.


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#6
iammykyl

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Thank you for the update.   If an adaptor does solve the issue, please let us know as this could help others with a similar problem.

You are very welcome.  :thumbsup:

Good luck. 


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#7
terry1966

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as mentioned earlier your not going to be able to resolve the problem without buying a signal converter (or a monitor with digital inputs.) just because there really isn't a problem and it's simply just a case of an analogue signal and a digital signal not being compatible with each other.

so an analogue receiver (vga monitor) can't decode the digital signals (hdmi output from laptop.) into a picture to display and vice versa.

 

vga connection is always an analogue signal.

hdmi connection is always a digital signal

 

dvi connection is a bit confusing because it can be both an analogue signal and/or a digital signal depending on type/spec.

dvi-d is digital signal only

dvi-a is analogue signal only

dvi-i can be both/either analogue and/or digital

then you also have single or dual link digital dvi connections which i won't go into.

 

let us know how you get on tho and what you finally decide on.

 

just for testing purposes if your tv has a hdmi connection you can always connect the laptop to it so you can see dual monitors will work. i actually use my own tv as my second monitor for my pc setup.

 

:popcorn:


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