After every boot I have artifacts near mouse till the relogining to session. This is the square that appears when something in the background of mouse has changed. Example: you have mouse hovered over some elements, you change content of window of just change window by hot keys and then you have old mouse's "background". Tried this with nvidia drivers: 375, 381, 384. Nothing helped.
Created attachment 107726 [details] Here is cursor with artifacts.
On X or wayland?
(In reply to David Edmundson from comment #2) > On X or wayland? On X. Also had this bug in Ubuntu 16.04 LTS.
This bug happens only on nvidia driver on first start and until reloginning. Now driver version is 384.
This isn't a plasma issue. cursor on X is drawn by X; there's something wrong upstream. Sorry.