Comment 13 for bug 2023766

Verified fixed on jammy in 42.9-0ubuntu2. Tested using the test plan at the top of the page and also a 1000Hz Microsoft Classic IntelliMouse. I actually don't think the bug was as visible in 42.x as it was in 44.x. The reason is likely because triple buffering in 42.x didn't rely on the problematic dynamic-max-render-time feature as much as newer releases do. Still, the fix was missing before and seems to be performing well in 42.9-0ubuntu2.