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Forum Index : Microcontroller and PC projects : HDMI and/or DisplayPort ????

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zeitfest
Senior Member

Joined: 31/07/2019
Location: Australia
Posts: 212
Posted: 11:51am 21 Nov 2021
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What is the gist regarding DisplayPort vs HDMI ?
There is blurb saying DP is the new connectivity thing.
I see new PC's etc including DP ... but ... monitors with DP are quite less common that those with HDMI. Then the blurb says DP is for entertainment media etc.. (ed) But I can't see many TV screens that have it.
I acquired a DP to HDMI converter which works OK, my very subjective perception is that it degrades the signal just a little.
For my next monitor should I get HDMI or DP ?? I can see monitors joining the stack of old disk drives, modems, keyboards, fans, bits  
A bit bemused at this stage !
Edited 2021-11-21 21:55 by zeitfest
 
Mixtel90

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Joined: 05/10/2019
Location: United Kingdom
Posts: 1200
Posted: 12:17pm 21 Nov 2021
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Unless you have specific requirements there's probably nothing in it. You can put multiple display port monitors on a single output, but the bandwidth is split between them. If your video card has multiple outputs it might be better to wire them directly.

Typical comments here
-- Mick

Zilog Inside! nascom.info for Nascom & Gemini
 
circuit
Senior Member

Joined: 10/01/2016
Location: United Kingdom
Posts: 103
Posted: 06:47pm 21 Nov 2021
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  zeitfest said  
For my next monitor should I get HDMI or DP ?? I can see monitors joining the stack of old disk drives, modems, keyboards, fans, bits  
A bit bemused at this stage !


My latest monitor is a 4K Samsung which has both DisplayPort as well as HDMI capability.  My HP computer also has both HDMI and DisplayPort outputs.  I have tried both and can see no visible or performance difference.  May I suggest that you buy a monitor with dual connectivity.  

Do beware that if you also want to use some of these HDMI connectivity monitors with Blu-Ray players and the like you may encounter a problem with HDCP (High Bandwidth Digital Content Protection)and find that the monitor may not respond to the copy-protection authority interchange.  

There is, of course, the alternative to a computer monitor and simply buy a decent 4K television and connect via HDMI.  Works okay except ...overscan.  Many TVs seem to clip the frame edges which can be a problem with some tightly-set menus and so forth.
 
phil99
Senior Member

Joined: 11/02/2018
Location: Australia
Posts: 228
Posted: 11:19pm 21 Nov 2021
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"Many TVs seem to clip the frame edges which can be a problem with some tightly-set menus and so forth."
On my computer the driver/setup app for the graphics chip allows for over-scan compensation. It took a while to find the right settings though.
 
zeitfest
Senior Member

Joined: 31/07/2019
Location: Australia
Posts: 212
Posted: 12:10pm 22 Nov 2021
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Most of the displays or PC's/motherboards on offer here (available Sydney or online)  seem to have one or the other but often not both.    Even the superwide displays.
I guess the world is going to laptops for computing and media displays for entertainment etc, ie  the need for a basic monitor is ebbing.
 
Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 956
Posted: 12:40pm 22 Nov 2021
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Read this, and your questions will be answered....

HDMI s DisplayPort

Regards,

Volhout

In essence: HDMI is more tailored to single monitor (i.e. TV) entertainment, DP is more tailored for multi monitor computer applications.
Edited 2021-11-22 22:41 by Volhout
If nothing goes right ... turn left
 
Mixtel90

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Joined: 05/10/2019
Location: United Kingdom
Posts: 1200
Posted: 12:41pm 22 Nov 2021
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At the moment HDMI seems to be the market leader. There is an immense amount of multimedia stuff that uses it, whereas DisplayPort is more or less confined to PCs & monitors. It's almost as if DisplayPort is a high definition replacement for VGA, not HDMI.
-- Mick

Zilog Inside! nascom.info for Nascom & Gemini
 
Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 956
Posted: 01:16pm 22 Nov 2021
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  Mixtel90 said  It's almost as if DisplayPort is a high definition replacement for VGA, not HDMI.


That is what it says in the above article: DP is a new connector for DVI and VGA
If nothing goes right ... turn left
 
Mixtel90

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Joined: 05/10/2019
Location: United Kingdom
Posts: 1200
Posted: 01:41pm 22 Nov 2021
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Perhaps I should have read it? ;)
-- Mick

Zilog Inside! nascom.info for Nascom & Gemini
 
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