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

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

13 comments fedilink hide all child comments

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. ……

top 13 comments

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[–] lemonySplit@lemmy.ca 53 points 1 month ago (2 children)

Fuck the HDMI forum. Displayport is the one true connector

[–] Midnitte@beehaw.org 20 points 1 month ago (2 children)

Need to pressure TV manufacturers to adopt it

[–] doublah@sopuli.xyz 10 points 1 month 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 1 month ago (1 children)

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

[–] Midnitte@beehaw.org 2 points 1 month ago (1 children)

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

[–] mushroomman_toad@lemmy.dbzer0.com 2 points 1 month ago

Yeah USB-C doesn't support HDMI at all. All USB-C+HDMI adapters use DP signalling on the cable.

[–] mnemonicmonkeys@sh.itjust.works 3 points 1 month ago (2 children)

What about USB?

[–] Peffse@lemmy.world 20 points 1 month ago

Are you talking about USB4u2x2phaseCmk3v5?

[–] greybeard@feddit.online 4 points 1 month ago

That is a displayport connector, you are correct.

[–] capuccino@lemmy.world 21 points 1 month ago (1 children)

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

[–] victorz@lemmy.world 21 points 1 month ago

Yes.

[–] victorz@lemmy.world 10 points 1 month 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 1 month ago

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