AMD Adds HDMI 2.1 Display Stream Compression Support to Open-Source AMDGPU Linux Driver
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Written by Michael Larabel in Radeon on 11 May 2026 at 01:30 PM EDT. 18 Comments
Crisped on the outside, thoughtful enough on the inside.
Summary
AMD has released updated AMDGPU kernel driver patches that add HDMI 2.1 Display Stream Compression (DSC) support to the open-source Linux driver. This follows earlier patches for HDMI 2.1 Fixed Rate Link (FRL) support. DSC enables visually lossless, low-latency compression for higher bandwidth efficiency, allowing for higher resolutions and refresh rates such as 4K@240Hz and 8K@120Hz over HDMI 2.1 connections on Linux systems.
Key quotes
· 3 pulledDisplay Stream Compression with HDMI 2.1+ allows for higher refresh rates and resolutions like 4K@240Hz and 8K@120Hz with this visually lossless, low-latency compression for better bandwidth efficiency.
At the beginning of the month was the surprise milestone of AMD posting AMDGPU kernel driver patches for HDMI 2.1 Fixed Rate Link (FRL) support.
AMD tacked on HDMI FRL DSC support to the HDMI
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