Comment 296 for bug 1220426

I'm on Asus UX303LB, with NVIDIA GM108M [GeForce 940M], using nvidia-346 version 346.59.
I don't see any correlation with touchpad use.
In my case, window or application switching (alt-tab) is often very unresponsive (e.g. have to hold down alt-tab for 14 seconds before the switcher appears) (about 10 seconds in, a half-faded-in switcher appears).
Also, switching workspaces is often super unresponsive, freezing before jerking to the next workspace, or freezing halfway between workspaces.
In all cases, normal functioning resumes after 5-10 seconds frozen.