[Wayland-bugs] [Bug 104643] Implement fake mode-setting using wp_viewporter

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104643

            Bug ID: 104643
           Summary: Implement fake mode-setting using wp_viewporter
           Product: Wayland
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: medium
         Component: XWayland
          Assignee: wayland-bugs at lists.freedesktop.org
          Reporter: robert.mader at posteo.de
        QA Contact: xorg-team at lists.x.org

Tracker bug for the experiment to implement fake mode-setting for xwayland. The
idea is to not really set the mode but to make clients believe they can and to
scale their output accordingly.

The main motivation is to work around the fact that a lot of legacy
applications, especially proprietary ones, don't support different screen
resolutions and therefore fail to start in xwayland. This is a regression for a
number of users, potentially preventing them to switch to wayland-based
compositors (e.g. using gnome-X11 instead of gnome-wayland).


Related: 
https://bugzilla.gnome.org/show_bug.cgi?id=791405
https://bugzilla.redhat.com/show_bug.cgi?id=1289714

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