Open · Ars Technica
AMD is adding HDMI 2.1 support for Linux
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Last year, they noted how the long-standing vagaries of HDMI licensing and open source AMD driver development combined to prevent the upcoming Steam Machine from receiving official support for the HDMI 2.1 display standard.
Key facts
- Wentland notes that this update is still “a representative subset of HDMI compliance,” in part because it is missing the code to support the Display Stream Compression (DSC) that allows for even
- It’s unclear whether the HDMI Forum’s original legal issues with any open source implementation of HDMI 2.1 have been resolved or if that organization will allow Linux devices to advertise as HDMI
- 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
- Last year, they noted how the long-standing vagaries of HDMI licensing and open source AMD driver development combined to prevent the upcoming Steam Machine from receiving official support for the HDMI
Summary
In patch series notes for an amdgpu driver update posted on Friday (and noticed by Phoronix ), AMD’s Harry Wentland says that the company is finally adding HDMI FRL (Fixed Rate Link) support to the popular Linux display driver. Wentland notes that this update is still “a representative subset of HDMI compliance,” in part because it is missing the code to support the Display Stream Compression (DSC) that allows for even higher resolutions and frame rates up to 10K at 100 Hz.