this post was submitted on 10 Dec 2025
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Valve: HDMI Forum Continues to Block HDMI 2.1 for Linux (www.heise.de)
submitted 1 day ago by throws_lemy@reddthat.com to c/technology@lemmy.world
238 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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[–] azvasKvklenko@sh.itjust.works 27 points 1 day ago (1 children)

Basically no modern TV has displayport except for few that come with USB-C

[–] LorIps@lemmy.world 25 points 23 hours ago (2 children)

DisplayPort to HDMI adapters are quite cheap and don't add latency.

[–] FalschgeldFurkan@lemmy.world 6 points 21 hours ago (1 children)

Aside from practicality, might there be something that gets lost if you do this? (e.g. worse frame rate, quality or sth. else)

[–] LorIps@lemmy.world 17 points 20 hours ago* (last edited 20 hours ago) (1 children)

No, DisplayPort, DVI-D and HDMI use fundamentally the same protocol, HDMI just adds DRM which requires active adapters when one plugs in a HDMI source into a DisplayPort sink. DisplayPort to HDMI conversions are completely lossless and don't add latency AFAIK.

[–] FalschgeldFurkan@lemmy.world 7 points 18 hours ago

Oh wow, all that hassle just for some DRM, as if that would prevent anything... Thanks for clarifying 👍

[–] azvasKvklenko@sh.itjust.works 2 points 8 hours ago

Yes, but forget about VRR unless you want to flash a custom firmware and with that the adapter is finky as hell. I use one for 2 years now. It kinda works