Most devices come with a power setting that allows the OS to disable when needed. It can be because it has not been used for a long period, i.e., if you are using an external keyboard and mouse.

Go to Settings > Bluetooth & devices > Mouse > Additional Mouse Settings Switch to Pointer options Uncheck the box next to Automatically move the pointer to the default button on a dialog box.

DPI, or dots per inch, is the measure of a computer mouse's sensitivity. The higher your DPI, the farther your on-screen cursor will move for every ... click on "Devices." On the Devices page ...