(PlaMo developer here)
Screen rotation largely depends on DRM driver (vc4 in case of raspberry PI I assume?) and also very recent kernel. I did some lookup and it seems to me that weston does support it so should work in theory with kwin_wayland as well ™️
But since this is not case, Can you please send me logs of kwin_wayland, (See wikipage on how to setup debugging) and dmesg?
You can reach out to be on Freenode (bshah), or email firstname.lastname@example.org
I'm going through and reinstalling everything (and making notes for a build blog). I'm going to use @Jbb moved debian-pm repo at repo.kaidan.im/debpm.
Once I've done all that, I'll try rotating the monitor using the GUI System Tools. I'll send over logs via email if that doesn't work and we'll go from there.
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