If I run cosmic-randr list in a release build, it often (but not always) lists only two of my three monitors. But generally seems to work in a debug build.
Calling dispatch once doesn't guarantee all events will have been read. A "roundtrip" can guarantee the server has finished responding to requests. But in this case, the correct solution is to wait for zwlr_output_manager_v1::done.
If I run
cosmic-randr listin a release build, it often (but not always) lists only two of my three monitors. But generally seems to work in a debug build.Calling
dispatchonce doesn't guarantee all events will have been read. A "roundtrip" can guarantee the server has finished responding to requests. But in this case, the correct solution is to wait forzwlr_output_manager_v1::done.It seems to work if I make it wait for
done, but https://wayland.app/protocols/wlr-output-management-unstable-v1#zwlr_output_manager_v1:event:done also defines state to be double buffered. So the library shouldn't expose any changes untildoneoccurs, so changes to multiple objects with multiple events can be handled atomically.