Experimental Out-Of-Tree Code Aims To Provide HDMI 2.1 FRL For AMD Linux Driver (www.phoronix.com)

submitted 23 hours ago by 1Fuji2Taka3Nasubi@piefed.zip to c/pcgaming@lemmy.ca

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One of the limitations of the AMDGPU Linux kernel graphics driver has been the lack of its support for HDMI 2.1 and later. AMD has wanted to support HDMI 2.1+ functionality under Linux but it's been legally blocked by the HDMI Forum. But anxious independent users have been working on open-source patches for wiring up HDMI 2.1 into the AMDGPU driver outside of the realm of AMD and the HDMI Forum's blessings. ……

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[-] lemonySplit@lemmy.ca 46 points 22 hours ago

Fuck the HDMI forum. Displayport is the one true connector

[-] Midnitte@beehaw.org 16 points 21 hours ago

Need to pressure TV manufacturers to adopt it

[-] doublah@sopuli.xyz 8 points 15 hours ago

The HDMI forum is made up of those TV manufacturers, so I doubt they'd help push an open standard that'd earn them less.

[-] defaultusername@lemmy.dbzer0.com 8 points 17 hours ago

They have been in recent years in the form of USB-C Alt Mode.

[-] Midnitte@beehaw.org 2 points 11 hours ago

I didn't realize alt mode used DP (but I guess that makes sense) - good to know, will definitely look for that in my next TV

[-] mnemonicmonkeys@sh.itjust.works 3 points 21 hours ago

What about USB?

[-] Peffse@lemmy.world 20 points 20 hours ago

Are you talking about USB4u2x2phaseCmk3v5?

[-] greybeard@feddit.online 4 points 18 hours ago

That is a displayport connector, you are correct.

[-] capuccino@lemmy.world 20 points 21 hours ago

Should I change to Displayport to unlock all my AMD GPU potential?

[-] victorz@lemmy.world 21 points 20 hours ago

Yes.

[-] victorz@lemmy.world 10 points 20 hours ago

these patches certainly wouldn't be accepted for upstreaming to the AMDGPU driver given HDMI Forum's rejection already and needing to clear AMD's legal review. It may help apply pressure on the HDMI Forum to change course especially if Valve and other stakeholders get involved, but this has been an unfortunate issue going back years already. AMD Linux users are best off just using DisplayPort where possible.

[-] recursive_recursion@piefed.ca 3 points 19 hours ago

Eh, I already moved to displayport and I'm not interested enough to go back

this post was submitted on 24 Feb 2026

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