AMD HDMI 2.1 DSC patches could bring 4K 240Hz to Steam Machine HDMI port

[harlan4096]

AMDGPU HDMI 2.1 patches add DSC support for Linux



AMD is preparing another update for its open-source AMDGPU Linux driver. According to Phoronix, the latest HDMI 2.1 patch series now includes Display Stream Compression support, also known as DSC. 

HDMI 2.1 FRL and DSC are two separate technologies used to increase display bandwidth. FRL, or Fixed Rate Link, is the newer HDMI signaling mode required for higher bandwidth modes beyond HDMI 2.0. DSC, or Display Stream Compression, reduces the amount of data sent over the cable using visually lossless compression. Together, they allow modes such as 4K at 240Hz and 8K at 120Hz over HDMI when supported by the GPU, display and cable.

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