@skinkie said in Fully offscreen QML rendering:

Is it possible (like with a raspberry pi) to specify in the Linux cmdline directly that a certain HDMI-output must be always available, even when no screen is connected, to prevent the "No screens available" errors. Something like a non-hardware based dummy output would do too.

I can answer the first question. You can specify video=HDMI-A-1:1280x720-24@50D to force the digital output on (notice the D in the end, e will work too). My current system makes that interlaced output, so it has some particularities.

If you want interlacing in Qt, on EGLFS that would still need this bug+patch to be applied. Sadly...

For question two. Still stumbling.