[STEAM] AMD is adding HDMI 2.1 support for Linux. That's good news for the Steam Machine.

[Steam 0]

Last year, we noted how the long-standing vagaries of

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combined to prevent the upcoming

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. Now, though, it seems that AMD is making real progress on adding full HDMI 2.1 compliance to its Linux amdgpu driver in the near future.

In patch series notes for an amdgpu driver update

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(and

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), AMD's Harry Wentland says that the company is finally adding HDMI FRL (Fixed Rate Link) support to the popular Linux display driver. That's the feature that

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compared to the TMDS standard found on HDMI 2.0 and earlier. That in turn enables direct support for higher resolutions, dynamic HDR, and features like Variable Refresh Rate that aren't supported in HDMI 2.0.

Wentland notes that this update still just represents "a representative subset of HDMI compliance," in part because it is missing the code to support the

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(DSC) that allows for even higher resolutions and frame rates up to 10K at 100 Hz. But Wentland adds that DSC support "is still being tested and will be sent out later," and that "a full
compliance run" for HDMI 2.1 is "in the works." An AMD driver developer with the handle agd5f also

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, noting that "a full implementation [of HDMI 2.1] will ultimately be available once the patches are ready and have completed compliance testing."

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