Edit: Apparently it is not related to i3. Second video demonstrates same thing happens on Xfce4 aswell. When the compositing is off some weird windows 98 stuff is happening First video is on Ubuntu 18.04 i3 desktop manager. Second is on Mx Linux 18.2 xfce4. Gpu is nvidia 1080 ti. Driver version: 418.56 Hello, first of, thanks for porting Unity to linux. When I switch from and to Unity when using i3 desktop manager Editor is not repainted. I have to move my mouse over each part of the editor to make it appear again. I recorded a 1 minute video showing the problem. Thanks.