Hi Laszlo, Thanks for clearing things out. What about Wayland? I know that some kind of dummy screen is possible with X11 but I wonder if someone tried it with Wayland?
pt., 10 kwi 2020, 11:47 użytkownik Laszlo Agocs <laszlo.ag...@qt.io> napisał: > Hi Tomasz, > > I assume this is about eglfs with the eglfs_kms (meaning drm+gbm) backend. > (because multi-screen is pretty limited / hopeless with the other, > vendor-specific, legacy fbdev-style backends) > > Somewhat related, but likely won't help your case: since 5.11 there is > support for running headless with render nodes (like /dev/dri/renderDnnn), > but that means the application will be doing offscreen graphics or compute > for its entire lifetime. > > Dynamic handling of screens added/removed after application startup is not > currenly in place, so the situation has not changed much recently. > > Best regards, > Laszlo > > ------------------------------ > *From:* Interest <interest-boun...@qt-project.org> on behalf of Tomasz > Olszak <olszak.tom...@gmail.com> > *Sent:* Thursday, April 9, 2020 6:11 PM > *To:* Qt Interest <interest@qt-project.org> > *Subject:* [Interest] The state of running Qt Quick application without > screen > > Hello, > > I remember struggling with it a few years ago and it was not possible. Has > anything changed? > I would like to start GUI application with input handling even when no > screen is attached. Once it is attached app will show on screen. Currently > I used eglfs platform plugin but. Has something changed for the past years > that will make it work. Ideally I would like to create window that renders > to offscreen surface and once screen is connected show window on the screen. > > Also - refactoring and proper separation so that app can run like a > service and service with GUI is out of scope unfortunately :( > > I would be thankful for any hints... > > Thanks, > Tomek >
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