44c693f45d
Running Xwayland non-rootless and resizing the output would lead to a
crash while trying to update the larger areas of the root window.
Make sure we resize the backing pixmap according to the new output size
to avoid the crash.
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Closes: https://gitlab.freedesktop.org/xorg/xserver/issues/834
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
(cherry picked from commit
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X Server
The X server accepts requests from client applications to create windows, which are (normally rectangular) "virtual screens" that the client program can draw into.
Windows are then composed on the actual screen by the X server (or by a separate composite manager) as directed by the window manager, which usually communicates with the user via graphical controls such as buttons and draggable titlebars and borders.
For a comprehensive overview of X Server and X Window System, consult the following article: https://en.wikipedia.org/wiki/X_server
All questions regarding this software should be directed at the Xorg mailing list:
https://lists.freedesktop.org/mailman/listinfo/xorg
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https://gitlab.freedesktop.org/xorg/xserver
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