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#1 2024-04-27 19:12:35
- graysky
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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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#2 2024-04-27 19:45:12
- jl2
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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)
Why I run Arch? To "BTW I run Arch" the guy one grade younger.
And to let my siblings and cousins laugh at Arsch Linux...
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#3 2024-04-27 21:05:55
- seth
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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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#4 2024-04-28 10:43:04
- graysky
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Re: How to determine HDMI version implementation
Thanks for the replies, all
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