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HDMI to VGA or DVI-I?


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#1 GuzziHero

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Posted 16 May 2018 - 04:47 PM

I have a Lenovo L171p monitor which I would like to use in a dual monitor setup, but isn't getting a connection.  Firstly my PC specs (yes its old, I am upgrading once the system requirements for Cyberpunk 2077 are released).

AMD955i Black processor
GeForce GE670 graphics
12Gb RAM

So I have one 23" Io monitor (1980x1080) on the DVI-I port, and would like to use the Lenovo 17" on HDMI.  The only ports on the Lenovo are D-Sub and DVI-D Dual.  I understand that this is an analog monitor.

The second monitor does detect on nVidia using a HDMI to D-Sub lead but says of course that there is no signal.

How can I convert the HDMI output to either DVI-D Dual or D-Sub, please? 

Thanks in advance for any help.



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#2 jonuk76

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Posted 16 May 2018 - 06:57 PM

HDMI is a digital only connection.  DVI-D is a digital only connection.  On the other hand, VGA (D-Sub) is analog only.  Your best option I think would be a HDMI to DVI-D adaptor.  This is a passive adaptor and therefore cheap and simple.  Example on Amazon.com

 

The fact your monitor has a DVI-D port on it, indicates it should handle digital video signals (as output by an HDMI port) without issue.

 

HDMI to D-Sub requires active conversion (a digital to analog converter dongle installed somewhere in the cable) so if what you have there is a passive cable, it won't work.  There may be some special cases where HDMI ports have been modified so they can output an analog signal, which is the only reason I can think of for these passive cables to exist, but these would be very specific cases.


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#3 GuzziHero

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Posted 17 May 2018 - 12:32 PM

Ah... I think I was getting mistaken.  I thought DVI-D was analog because it has less pins.

Right, I'll try that then.  Many thanks!






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