8d3e053059
Commit a3da4b8d5bd217c0262fd9361036877d155a300f changed updating of window monitors to always use take affect when it was done from a non-user operation. This could cause feed back loops when a non-user driven operation would trigger the changing of a monitor, which itself would trigger changing of the monitor again due to a window scale change. The reason for the change, was that when the window monitor changed due to a hot plug, if it didn't actually change, eventually the window monitor pointer would be pointing to freed memory. Instead of force updating the monitor on all non-user operations, just do it on hot plugs. This allows for the feedback loop preventing logic to still do what its supposed to do, without risking dangling pointers on hot plugs. Related: https://gitlab.gnome.org/GNOME/mutter/issues/189 Closes: https://gitlab.gnome.org/GNOME/mutter/issues/192
Mutter
Mutter is a Wayland display server and X11 window manager and compositor library.
When used as a Wayland display server, it runs on top of KMS and libinput. It implements the compositor side of the Wayland core protocol as well as various protocol extensions. It also has functionality related to running X11 applications using Xwayland.
When used on top of Xorg it acts as a X11 window manager and compositing manager.
It contains functionality related to, among other things, window management, window compositing, focus tracking, workspace management, keybindings and monitor configuration.
Internally it uses a fork of Cogl, a hardware acceleration abstraction library used to simplify usage of OpenGL pipelines, as well as a fork af Clutter, a scene graph and user interface toolkit.
Mutter is used by GNOME Shell, the GNOME core user interface. It can also be run standalone, using the command "mutter", but just running plain mutter is only intended for debugging purposes.
License
Mutter is distributed under the terms of the GNU General Public License, version 2 or later. See the COPYING file for detalis.