Why is there no tearing on Windows?

Question

Monitors

There is a computer on Windows 8.1 with some kind of video card from AMD. I'm wondering why there is NO tearing on Windows, where to dig. The fact is that on purpose I don’t have any drivers, panels, etc. I did not install it, 60 hertz is set in the monitor settings. Tearing is missing in games, when moving windows and watching videos. Does the small screen resolution play a role? Where to dig, what settings to check? So, in theory, there should be a tearing. There is tearing on Ubuntu on the same computer without driver settings.

Answer 1

As for Windows 8.1, I can't say, but in Windows 7 there is no tearing when Aero is enabled (Aero itself uses vertical synchronization), and when Aero is turned off (classic theme is selected), it is present. At least on my laptop (intel + nvidia) this behavior, I can't say for others.
I believe Windows 8.1 uses the same developments as Aero in Windows 7.

Answer 2

In Windows, vertical sync is enabled by default, and in Ubuntu it is disabled, for example.
VSync or Vertical Synchronization. Nvidia can be configured for individual applications, I don’t know how it is in AMD drivers now.

Answer 3

DirectX instructs the video processor to show the entire screen only after filling (double buffering).