SteamOS 3.10 preview adds HDMI 2.1 VRR and a Plasma update

A quiet day: Valve has a new SteamOS preview, and Sigma updates its RAW software for the FP2.

SteamOS 3.10 preview brings HDMI 2.1 VRR support

Valve has released an early preview of SteamOS 3.10 on the Steam Deck Preview channel. It warns that the build may contain unexpected bugs and that its notes may not cover every change since the 3.9 stable release. You opt in under Settings > System > System Update Channel.

On the AMD side, Valve lists support for HDMI 2.1 VRR, FRL and ALLM. Game Mode gets better frame timing when the framerate limiter runs with VRR, plus less screen flickering with VRR on while navigating the Steam interface or leaving it idle. Desktop Mode moves from Plasma 6.7.3 to Plasma 6.8.2, and the Linux kernel is rebased on Linux 7.3.

Valve also lists HDR and brightness adjustment support for the ASUS ROG Xbox Ally X20 and mesh shader support on NVIDIA Turing and newer. One known issue is a display that may stay blank with the Dell G3223Q. Valve gives no date for the stable release.

Source: Valve, Steam Deck

Sigma Photo Pro 6.10.0 opens FP2 DNG files

Sigma has released version 6.10.0 of Photo Pro, its RAW development program for Windows and Macintosh. It enables DNG RAW editing and development for the Sigma FP2, and it can display the desqueezed image of RAW stills shot with an anamorphic lens attached and the desqueeze setting switched on. HDR display now works for images from the FP2 and the Sigma BF, provided the PC, the display and the cable all support HDR. TIFF files are not supported for HDR display. Sigma has made the update available for download and recommends it to owners of the FP2, BF, fp series, sd Quattro, dp Quattro, SD and DP cameras.

Source: Sigma