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Author Topic: HDMI vs DVI Connection for Phot Work?  (Read 834 times)

Garnick

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HDMI vs DVI Connection for Phot Work?
« on: October 07, 2020, 09:26:09 am »

A friend has just bought a new display for his photo work.  It appears that the cable included is HDMI and a DVI cable is optional.  Since I've never used an HDMI cable for such a connection I cannot give him as much information as I would like to do.  Therefore I'd like to receive some opinions concerning this issue.  Perhaps not an issue at all, but that's the information I need.

Any and all replies would be much appreciated  ;D   
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Gary N.
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rasworth

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Re: HDMI vs DVI Connection for Phot Work?
« Reply #1 on: October 07, 2020, 10:09:11 am »

I've never encountered any difficulties using HDMI for high resolution photo displays.  You may want to read the Wikipedia entry, https://en.wikipedia.org/wiki/HDMI, particularly the "Compatibility with DVI" section.

Richard Southworth
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Alan Goldhammer

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Re: HDMI vs DVI Connection for Phot Work?
« Reply #2 on: October 07, 2020, 12:46:04 pm »

Lots of new video cards only have Display Port and HDMI connections.  The last two NVIDIA cards I used in builds were that way.
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Garnick

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Re: HDMI vs DVI Connection for Phot Work?
« Reply #3 on: October 08, 2020, 07:11:16 am »

Thanks for the information gentlemen.  I think that's just about all I need for this topic  :D  8)
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Gary N.
"My memory isn't what it used to be. As a matter of fact it never was." (gan)

Alan Klein

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Re: HDMI vs DVI Connection for Phot Work?
« Reply #4 on: October 08, 2020, 09:31:58 am »

What is the difference between the two? I'd like to know.

AndyF

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Re: HDMI vs DVI Connection for Phot Work?
« Reply #5 on: December 28, 2021, 07:45:39 pm »

A thread I read somewhere else explained that the data transmission protocol on HDMI can compress the video data, losing some detail in very brights and darks, if the bandwidth needed by the display is encountering the limits of the cable.  HDMI version 2.1 is when this feature was added.  If your display (like mine, Asus PA279) only supports a lower version of HDMI then compression cannot happen.
DVI and DisplayPort do not have any feature to compress video so they will always be accurate.
Now perhaps this compression might only happen on very large displays, 4K or 8K movies with surround sound also in the HDMI cable, but we don't need the HDMI connection to start creating problems itself!
Andy
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Louie

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Re: HDMI vs DVI Connection for Phot Work?
« Reply #6 on: January 13, 2022, 08:54:57 am »

The video signal in HDMI and DVI are electrically the equivalent. HDMI includes various audio formats to support home entertainment A/V systems. 

The second sentence in the second paragraph of the Wikipedia HDMI article states this clearly.

Quote
CEA-861 signals carried by HDMI are electrically compatible with the CEA-861 signals used by the Digital Visual Interface (DVI). No signal conversion is necessary, nor is there a loss of video quality when a DVI-to-HDMI adapter is used

-louie
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digitaldog

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Re: HDMI vs DVI Connection for Phot Work?
« Reply #7 on: January 13, 2022, 09:06:29 am »

What is the difference between the two? I'd like to know.
Try using Goggle; the answer awaits you.
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digitaldog

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Re: HDMI vs DVI Connection for Phot Work?
« Reply #8 on: January 13, 2022, 09:11:48 am »

A friend has just bought a new display for his photo work.  It appears that the cable included is HDMI and a DVI cable is optional.  Since I've never used an HDMI cable for such a connection I cannot give him as much information as I would like to do.  Therefore I'd like to receive some opinions concerning this issue.  Perhaps not an issue at all, but that's the information I need.

Any and all replies would be much appreciated  ;D
This can depend on the type of display and how it communicates (if it does) with the computer for onboard calibration. For example, NEC SpectraViews do this and have recommendations on which to use as outlined here:
https://update.sharpnecdisplays.us/spectraview/NEC_SpectraView_README_MacOS_v1_1_40_EN.html
So, it depends. What kind of display is he using, the OS etc?
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Daverich

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Re: HDMI vs DVI Connection for Phot Work?
« Reply #9 on: January 13, 2022, 01:49:47 pm »

Try using Goggle; the answer awaits you.

People can’t ask questions and get answers here?
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digitaldog

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Re: HDMI vs DVI Connection for Phot Work?
« Reply #10 on: January 13, 2022, 02:03:49 pm »

People can’t ask questions and get answers here?
Depends on the people and their inability to accept correct answers. Some have a massive history and agenda of asking questions without the ability to accept them.
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Author “Color Management for Photographers" & "Photoshop CC Color Management" on pluralsight.com
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