[qwerty456127]

> If you try scrolling in a web browser, especially fast scrolling in small increments, you're likely to experience screen tearing or other problems in the "smoothness". Compositors are included by default on most X desktop environments primarily for this reason.

I see. Curious that I have never noticed anything like this though. I have always been disabling compositors as I realized I don't really care if my panel is transparent. Perhaps the problem just doesn't affect Intel graphics (Raspberry Pi browsing is slow anyway so fast scrolling just doesn't exist there).

UPDATE: I've just realized I've actually seen screen tearing many times - always within specific Windows apps ran with Wine, e.g. Total Commander.