2/ Valve recently confirmed to Ars that the "At this time an open source HDMI 2.1 implementation is not possible without running afoul of the HDMI Forum requirements." aspect is the reason why Valve's New Steam Machine officially only supports #HDMI 2.0; but they are trying to help improve things there:
""This situation has caused significant headaches for Valve, which tells Ars it has had to validate the Steam Machine’s HDMI 2.1 hardware via Windows during testing. And when it comes to HDMI performance via SteamOS, a Valve representative tells Ars that “we’ve been working on trying to unblock things there.”
That includes unblocking HDMI 2.0’s resolution and frame-rate limits […]"
https://arstechnica.com/gaming/2025/12/why-wont-steam-machine-support-hdmi-2-1-digging-in-on-the-display-standard-drama/
Thorsten Leemhuis (acct. 1/4)
npub1lr…7xte8
2025-12-10 07:39:22 UTC
in reply to nevent1q…6qft
Author Public Key
npub1lr60aqlqyzpyufdnal7e560cy6r9fvjjqht28pgfpm2v0njutjfq07xte8Published at
2025-12-10 07:39:22 UTCEvent JSON
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"content": "2/ Valve recently confirmed to Ars that the \"At this time an open source HDMI 2.1 implementation is not possible without running afoul of the HDMI Forum requirements.\" aspect is the reason why Valve's New Steam Machine officially only supports #HDMI 2.0; but they are trying to help improve things there:\n\n\"\"This situation has caused significant headaches for Valve, which tells Ars it has had to validate the Steam Machine’s HDMI 2.1 hardware via Windows during testing. And when it comes to HDMI performance via SteamOS, a Valve representative tells Ars that “we’ve been working on trying to unblock things there.”\n\nThat includes unblocking HDMI 2.0’s resolution and frame-rate limits […]\"\n\nhttps://arstechnica.com/gaming/2025/12/why-wont-steam-machine-support-hdmi-2-1-digging-in-on-the-display-standard-drama/",
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