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⇱ GNOME Mutter On Wayland Adds ICC Profile Support, Backlight Improvements - Phoronix


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GNOME Mutter On Wayland Adds ICC Profile Support, Backlight Improvements

Written by Michael Larabel in GNOME on 9 August 2025 at 06:19 AM EDT. 14 Comments
There were a lot of interesting changes that landed in GNOME's Mutter compositor codebase to end out the weekend and ahead of next month's big GNOME 49 release.

First up, Mutter has merged support for setting Broadcast RGB support. This has been tested on Intel graphics so far and fixes the four year old bug report over having a way for setting the full RGB range output in GNOME on Wayland.

Mutter also merged wl_seat version 10 support. The updated Wayland seat protocol adds an "axis relative direction" feature as well as server-side key repeat abilities.

On Friday, Mutter also merged support for ICC profiles with GNOME on Wayland. ICC profiles can now be used by Mutter under Wayland for enhancing the color management support with capable monitors.

👁 GNOME 49 brightness options


Also worth pointing out is Red Hat's Sebastian Wick has written an interesting blog post highlighting the backlight changes in GNOME 49 and the impact on enhancing HDR support. GNOME 49 is looking to be in good shape for per-monitor screen brightness and better handling the new Linux KMS backlight API.

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.