Yes by default all outputs are associated with the same seat, as is common with almost all distributions. You can use xrandr to reposition where the displays are with respect to each other, or arandr to do the same graphically.
Having multiple seats on one system is a fairly niche use case, and quite possibly one that no one has worried about.
Fundamentally there should be no difference between x86 and the Pi as they both go through the same modesetting interface to the DRM/KMS subsystem.
You haven't given any details of the configuration options you have tried. I've tried following https://www.duskopijetlovic.com/x11/uni ... reens.html which looked plausible, and I get a similar failure.
xorg is such a massive beast that finding the right bits in the code can be a real pain.
It looks to be https://cgit.freedesktop.org/xorg/xserv ... er.c#n1473. I wonder if it is seeing the v3d render device and not skipping it. That probably means that pScrn->is_gpu is false when it shouldn't be. Most x86 platforms will have render and display on the same DRI card, but ARM architectures often don't.
Sorry, I haven't the time at present to dig into the guts of the behemoth that is Xorg.
Having multiple seats on one system is a fairly niche use case, and quite possibly one that no one has worried about.
Fundamentally there should be no difference between x86 and the Pi as they both go through the same modesetting interface to the DRM/KMS subsystem.
You haven't given any details of the configuration options you have tried. I've tried following https://www.duskopijetlovic.com/x11/uni ... reens.html which looked plausible, and I get a similar failure.
xorg is such a massive beast that finding the right bits in the code can be a real pain.
It looks to be https://cgit.freedesktop.org/xorg/xserv ... er.c#n1473. I wonder if it is seeing the v3d render device and not skipping it. That probably means that pScrn->is_gpu is false when it shouldn't be. Most x86 platforms will have render and display on the same DRI card, but ARM architectures often don't.
Sorry, I haven't the time at present to dig into the guts of the behemoth that is Xorg.
Statistics: Posted by 6by9 — Wed Jun 26, 2024 2:09 pm