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graysky

Wiki Maintainer

From: :wq

Registered: 2008-12-01

Posts: 10,731

Website

How to determine HDMI version implementation

I need to determine if I have full HDMI 2.2 implementation on some hardware.  Anyone have better google-fu that I?  Seems like something in journalctl or dmidecode would have this information.

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jl2

Member

From: 47° 18' N 8° 34' E

Registered: 2022-06-01

Posts: 1,378

Re: How to determine HDMI version implementation

Are you sure this exists? duckduckgo with 'hdmi "2.2" specs' gives me 3 websites.

Could you mean HDCP 2.2? I got that as search result too.

Else get a really fancy monitor and look if res/framerate exceed HDMI 2.1

Edit: And if you've got amd, you're screwed: https://arstechnica.com/gadgets/2024/02 … -1-driver/

Last edited by jl2 (2024-04-28 05:30:02)

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seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 76,003

Re: How to determine HDMI version implementation

The most recent version is 2.1b from last August
HDCP 2.2 is > 10 years old, if your hardware is from before 2013, it doesn't provide this and if it's from after 2015, there's almost no chance that it does not not support HDCP 2.2

The HDMI version is typically documented for the HW, you could google the model/vendor for a manual.
The cables don't follow this version scheme *at all* - the highest graded cable you can get will be labeled "HDMI Ultra High Speed" - the bullshit marketing lingo is actually the official grading.
There're no version numbers etc.

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graysky

Wiki Maintainer

From: :wq

Registered: 2008-12-01

Posts: 10,731

Website

Re: How to determine HDMI version implementation

Thanks for the replies, all

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