Comment 9 for bug 1893969

This video is taken under the same conditions as the previous (emacs-search.mp4) video. It shows me killing a Firefox tab, and the screen covered in litter; as I edit in the Launchpad comment box and move the cursor within firefox, you can see parts of the screen repaint. The entire window does not repaint until I move the cursor to focus another window (off-screen to the right).

Again, compton not running, Xorg modesetting server 2:1.20.8-2ubuntu2.4, Linux 5.4.0-42-generic.