Hello Serge_090,
Thank you so much for posting to the Microsoft Community.
I appreciate you raising this concern and I understand that you are having issues with your keyboard not working.
There could be several reasons why your Surface Pro 8 keyboard is not working, the keyboard may not be properly connected to the Surface Pro 8. Or Outdated or Faulty Drivers: The drivers for the keyboard might be outdated or faulty. Here are some troubleshooting steps you can try:
Detach the Type Cover or Keyboard
- Unplug your Surface and detach the Cover.
- Make sure there's no debris, damage or anything that may inhibit a connection.
Force your Surface to restart
- Select Start> Power> Shut downand wait for your Surface to shut down.
- Now, press and hold the power button for 20 seconds. If you see the logo screen appear after a few seconds, continue to hold for the full 20 seconds until you see it again.
Reattach the Type Cover or Keyboard
- Re-attach the Cover, making sure that all the magnets touch the bottom edge of your Surface.
Confirm functionality
- To confirm connectivity, press the Caps and Fn keys on your Surface Type Cover or Keyboard a couple of times to check whether the LED lights turn on and off.
- If the LED lights don't turn on, there might be a hardware issue and the next option is tosubmit a service order.
- IF the LED lights turn on, please see Troubleshoot Surface Type Cover or Keyboard - Microsoft Support for more troubleshooting steps.
Please let me know if this works and hopefully it helps!Best regardsRolando S.