• Experimental Out-Of-Tree Code Aims To Provide HDMI 2.1 FRL For AMD Linux Driver One of the limitations of the AMDGPU Linux kernel graphics driver has been the lack of its support for HDMI 2.1 and later. • AMD has wanted to support HDMI 2.1+ functionality under Linux but it’s been legally blocked by the HDMI Forum. • But anxious independent users have been working on open-source patches for wiring up HDMI 2.1 into the AMDGPU driver outside of the realm of AMD and the HDMI Forum’s blessings. • Besides AMDGPU patches working on HDMI Gaming Features worked on independently and developed using public code/knowledge and trial and error, today an independent developer announced his “working” HDMI 2.1 Fixed Rate Link (FRL) support for the AMDGPU driver. • The independent user has a kernel tree on GitHub with HDMI FRL support working on AMDGPU to enable HDMI 2.1 bandwidth for AMD GPUs. • This HDMI 2.1 bandwidth work is successfully using FRL training, HDR works, and other basic functionality appears to be working but only a Radeon RX 9070 XT graphics card has been tested.
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