What to do if the mouse cursor disappears?

Question

linux

Tried to install new nvidia video driver. During installation, it showed that it could not be installed due to its incompatibility with nouveau. I rebooted and the cursor disappeared, and everywhere, both in Ubuntu, and in Windows, and when booting from a USB flash drive. The terminal works, the keyboard too. What to do?

Answer 1

So it is, the problem was in the mouse. Went through it, shook the port, everything worked.

Answer 2

Look in Device Manager, does it see the mouse? Maybe the mouse is broken.