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The HDMI Forum rejected AMD's open source HDMI 2.1 implementation (www.gamingonlinux.com)

submitted 9 months ago by smileyhead@discuss.tchncs.de to c/technology@lemmy.world

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[–] jlh@lemmy.jlh.name 5 points 9 months ago (1 children)

It's a matter of cable bandwidth. 4k120 4:4:4 requires more bandwidth than hdmi 2.0 can provide. You can drop down to 4:2:0, but that's a pretty bad experience and ruins the image quality.

I've been using an adapter cable, but it's really flaky, I don't know if it's a bad cable or what. But a normal hdmi cable just plain works on Windows, since the windows amd driver supports hdmi 2.1.

[–] Sudomeapizza@lemm.ee 1 points 9 months ago

yes, that is a valid factor. i meant more towards the type of cable doesn't mater. but yes an up to date spec of the cable is also just as important