AMD Fixes Linux HDMI 2.1 DSC Limitation; 4K 240Hz Steam Machines Within Reach
A well-known gap in AMD's GPU drive support on Linux was the absence of HDMI 2.1 and Display Stream Compression (DSC), but fortunately AMD open source software engineer Harry Wentland and the team have finally remedied the situation. Per an email publicly released on Freedesktop.org, AMD's Linux display drivers have finally added support for these features and "passed a representative subset of HDMI compliance" with a full compliance run "in the works."
The lack of support is why the Steam Machine was announced with HDMI 2.0 support rather than HDMI 2.1, and the patch should allow the Steam Machine to run at up to 4K 240 Hz or 8K 120 Hz, though of course the limited powerof the machine means it's still best-suited for 1080p gaming. High resolutions should benefit from the addition of DSC, though, since it will allow for full 10-bit color in line with the...
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