All keyboards buggy on Tecra R850-S8540

Erlja_

Estimable
Oct 3, 2015
1
0
4,510
The original keyboard, the replacement i installed and occasionally the USB keyboard all randomly type, erratically fail to register commands and lag.

This occurred in windows 7 and continued into 10. I've removed the keyboard and cleaned it with compressed air, and installed the latest chipset drivers for my model, but still have trouble.

Device manager names the keyboard as Lenovo ThinkPad PS/2 keyboard.