On Fri, Mar 29, 2024 at 06:46:04PM +0900, Yosuke Nakayama wrote: > Thanks for the quick response. > > > With a (new) shell, or maybe with additions to desktop-shell, it would > allow the following to create a virtual output: > Does this mean that the existing shells (xdg-shell, kiosk-shell, ivi-shell, > etc.) cannot achieve the functionality? No, not in the sanse I've described earlier (using the maximized,fullscreen requests).
With desktop-shell, you can create a region that spans all the outputs, but not with kiosk-shell. I don't know about ivi-shell, but with ivi-shell you can have other controllers which can problably achieve that, but similarly to the new shell, you might have to write it. Might want to take a look at the wayland-ivi-extension see if it that has something like that. > > On Fri, Mar 29, 2024 at 5:45 PM Marius Vlad <marius.v...@collabora.com> > wrote: > > > On Fri, Mar 29, 2024 at 10:20:50AM +0900, Yosuke Nakayama wrote: > > > Dear Wayland-devel Community, > > Hi, > > > > > > I am currently exploring the capabilities of Weston, the reference > > > compositor for Wayland, specifically in the context of an application use > > > case that I am working on. My goal is to achieve a functionality where > > the > > > graphical output of a single application can be divided and displayed > > > simultaneously across two separate displays. This functionality would > > > enable part of the application window to be shown on one display and the > > > rest on another, effectively spanning the application window across > > > multiple screens. > > > > > > From my understanding and current experimentation with Weston, this > > > particular use case does not seem to be directly supported, but I'm not > > > sure. Does functionality exist at this time to achieve such a use case? > > In desktop-shell, maximized and fullscreen xdg-shell calls for a > > particular will *not* span across multiple outputs, nor there's a way to > > define a virtual output that will add up multiple physical outputs into > > a virtual one. For kiosk-shell, windows will be fullscreen'ed to a > > particular output. That doesn't mean this can't be done. With a (new) > > shell, or maybe with additions to desktop-shell, it would allow the > > following to create a virtual output: > > > > [virtual-output] > > output=eDP-1,HDMI-A-1 > > name=MyVirtualOutput-1 > > > > Then, the compositor will advertise this output as well such that the > > client can issue a maximized, fullscreen request and have client spanned > > across those outputs. > > > > > > > > Thank you for your time and assistance! > > > > > > Best regards, > >
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