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Why won’t Steam Machine support HDMI 2.1? Digging in on the display standard drama.
(arstechnica.com)
this post was submitted on 04 Dec 2025
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They should just make it DisplayPort only and provide a DP to HDMI 2.1 dongle with it.
I’m glad they provide the option for both ports but I worry it might be confusing for consumers and a dongle might have been a better call here. They probably should’ve done what Nvidia has done and have the firmware for HDMI on the video chip rather than on the OS.
There are still handshake issues with that.
There IS a workaround consumers can do. It involves flashing a REALLY sketchy firmware to one of the mainstream dongles. And it still isn't true HDMI 2.1. It just gets you VRR and enough HDR that I don't know the difference.
But probably not something a company like Valve wants to actively sell. Expect hundreds of variants on aliexpress but your country may vary as to whether that is cost effective to purchase.
Yeah. 2x DisplayPorts would allow for 2 monitors to be connected.
It would have been much better.
Lots of DisplayPort monitors can support daisy chaining, so you don't even need 2 ports on the system.
Well, I have only seen the cheaper ones that don't and won't that also require the DP cable to actually be a good one, instead of whatever I found around? I actually tried quite a bit to find a DP cable that I could know, would have a better data-rate, but all I found was people reselling the complementary cables that came in device packages, for a few extra bucks. Only HDMI being available with properly rated packages.