Mutter (software)

GNOME window manager and display server From Wikipedia, the free encyclopedia

Mutter is a display server and window manager for the Wayland protocol ("compositor"). It is the default window manager for GNOME.

Initial releaseApril 2011; 15 years ago (2011-04)
Stable release
50.1[1] Edit this on Wikidata / 14 April 2026; 12 days ago (14 April 2026)
Written inC
Quick facts Developer, Initial release ...
Mutter
DeveloperGNOME Project
Initial releaseApril 2011; 15 years ago (2011-04)
Stable release
50.1[1] Edit this on Wikidata / 14 April 2026; 12 days ago (14 April 2026)
Written inC
Operating systemUnix-like
Size40.2 kB (amd64 .deb package)[2]
Type
LicenseGPL-2.0-or-later[3]
Websitemutter.gnome.org
Repositorygitlab.gnome.org/GNOME/mutter
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Mutter was initially a compositing window manager designed and implemented for the X Window System, but then evolved to be a Wayland compositor. It became the default window manager in GNOME 3, replacing Metacity[4] which used GTK for rendering. The name "Mutter" is a combination of "Metacity" and "Clutter".

Window management

Mutter can function as a standalone window manager for GNOME-like desktops, and serves as the primary window manager for the GNOME Shell,[5] which is an integral part of GNOME since version 3. Mutter is extensible with plug-ins, and supports numerous visual effects. GNOME Shell is written as a plug-in to Mutter.

Release history

  • Support for HiDPI was added to version 3.13 of Mutter by Adel Gadllah.[6]
  • In version 3.13.2 logind integration replaced mutter-launch.[7]
  • In version 3.13.3 (June 24, 2014) the server side bits of wl_touch_interface were implemented by Carlos Garnacho.[8][9][10][11]
  • Support for X11 was disabled at compile-time in GNOME 49 and officially dropped with the X11 session code removed GNOME 50, rendering Mutter exclusively a Wayland compositor. GNOME 49 and later can still run most X11 apps on the Wayland session via XWayland.

Forks

Muffin

Muffin is a fork of Mutter by the Linux Mint team for their Cinnamon desktop environment. Cinnamon's shell, a fork of GNOME Shell, is written as a plugin for Muffin.[12]

References

Further reading

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