Comment 83 for bug 1278223

I've been watching this one and the related bugs for a while.

Using an Nvidia (580) with an Intel (HD3000) on a desktop PC this issue is substantially improved in the latest xorg-edgers releases; it's now very close to working perfectly.

There are still some small niggles - using Unity in 16.x the cursor will flicker when changing between icons on the Launcher and when moving between the Launcher and the rest of the desktop.

In Cinnamon it's almost entirely gone - it's only especially prominent when moving between menu directories.

There are a couple of other flashes here and there, but it's otherwise working exactly as you'd want it to.

I'll happily submit a bug report if it'll help, but it's looking like the developers have narrowed the cause down - hopefully it's not just a fortunate accident.