Following AMD posting AMDGPU patches for HDMI 2.1 FRL support after the HDMI 2.1 open-source support was long blocked by the HDMI Forum, as part of working toward a complete HDMI 2.1 implementation in this AMD Linux driver it was followed by HDMI 2.1 Display Stream Compression (DSC) support. Now the latest on the AMDGPU HDMI 2.1 enabling path is enabling Auto Low-Latency Mode (ALLM) as well as HDMI Variable Rate Refresh!..