THE CRUNCH

The Linux kernel is set to gain support for HDMI 2.1 features with the upcoming 7.4 release, including AMD FreeSync, variable refresh rate, and Auto Low-Latency Mode. This development, which has been in the works for some time, aims to bring console-like features to Linux desktops and Steam Machines.

The update is expected to land in October 2025, though an exact date has not been set. The changes come from patches that have been submitted to the kernel mailing list and are likely to be merged into the upstream driver stack. This move is significant because it brings HDMI 2.1 functionality to Linux without relying on proprietary drivers.

Valve has previously stated that the work for HDMI 2.1 is complete for the Steam Machine. However, the company has not yet implemented the new driver in SteamOS, as the Steam Machine product page still cites HDMI 2.0. This suggests that while the kernel support is ready, the user-facing software may need a separate update to take full advantage of the new features.

WHAT HAPPENS NEXT

The Linux community will be watching for the merge of the patches and the subsequent release of kernel 7.4. Valve will also need to update SteamOS to enable the new features for Steam Machine users.