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Valve: HDMI Forum Continues to Block HDMI 2.1 for Linux (www.heise.de)
submitted 3 months ago by throws_lemy@reddthat.com to c/technology@lemmy.world
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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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[-] 1Fuji2Taka3Nasubi@piefed.zip 1 points 3 months ago

Technically no, it has to specifically have Dual-Mode support (DP++). In practice most of them do, at least in the consumer space.

If it doesn't then you need an active adapter.

this post was submitted on 10 Dec 2025
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