2018-08-03, 18:26
In short: Kodi renders in OpenGL, which is only "stopped" by swapBuffers. If this is not vsynced, it will do whatever the hw wants. Syncing to Display is btw. implemented as syncing to "vsync" which should match the repaint of the display. But won't work without vsync obviously.
If you adjust refreshrate ...
If you adjust refreshrate ...