this post was submitted on 10 Dec 2025
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937
Valve: HDMI Forum Continues to Block HDMI 2.1 for Linux (www.heise.de)
submitted 1 month ago by throws_lemy@reddthat.com to c/technology@lemmy.world
256 comments fedilink hide all child comments
 

The HDMI Forum, responsible for the HDMI specification, continues to stonewall open source. Valve's Steam Machine theoretically supports HDMI 2.1, but the mini-PC is software-limited to HDMI 2.0. As a result, more than 60 frames per second at 4K resolution are only possible with limitations.

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[–] mybuttnolie@sopuli.xyz 21 points 1 month ago (2 children)

yes, i have a dp to hdmi 2.1 cable that cost like 35€. it works fine except each time i get up from my chair the screen flashes white. and no VRR.

[–] TheBat@lemmy.world 21 points 1 month ago (2 children)

it works fine except each time i get up from my chair the screen flashes white

Wha... how? What?

[–] mybuttnolie@sopuli.xyz 30 points 1 month ago (2 children)

ESD. the air is extremely dry here

[–] madjo@feddit.nl 2 points 1 month ago* (last edited 1 month ago) (1 children)

Put a ferrite core (or ferrite bead) around your cable to lessen the impact ESD has on your video output.

[–] mybuttnolie@sopuli.xyz 2 points 1 month ago

good tip, I'll try that!

[–] BarbecueCowboy@lemmy.dbzer0.com 2 points 1 month ago (1 children)

There are a lot of passive adapters out there that seem like black magic at first.

Obviously has drawbacks, but you can also do displayport/hdmi to VGA passively.

[–] Eheran@lemmy.world 6 points 1 month ago (1 children)

That is not passive, they have to "translate".

[–] BarbecueCowboy@lemmy.dbzer0.com 3 points 1 month ago

Oh, you may have got me.

By passive, I was trying to say that no external power/additional connection/etc is required. But, the port is technically powered and that is enough to make it not passive.

[–] yucandu@lemmy.world 7 points 1 month ago (1 children)

I have a 25ft HDMI cable that works fine for everything except sometimes when I open a new tab in Firefox, the screen temporarily goes blank/no-signal for a couple seconds. Also sometimes when the dryer turns on.

[–] mybuttnolie@sopuli.xyz 4 points 1 month ago

my friend has had this issue for years, when he turns on a fan his monitor turns off for a second