Click on an image in NeoChat. The cursor immediately stops updating on the screen. However it is is invisibly moving; I can click on the close button in the top-right corner even though the cursor does not *appear* to move. Cannot reproduce in the full-screen preview in the Global Themes KCM, so it's not all full screen overlays that trigger this. So fat just the one in NeoChat
Ooh, it affects full-screen Youtube videos for me too.
Cannot reproduce.
Can you check kwin_wayland's logs for drm backend errors?
Which logs where and how do I get 'em?
Seems to be fixed with today's git master.