Hi Benedetto
I'm Christine, a Windows user like you. I'll do my best to help you.
I can see here that you're having issue with your keyboard after an idle time.
May I know when did the issue start? Is there any changes made?
Please check and follow the steps below:
Method 1: Reinstall Keyboard driver
Please press Windows key + X and choose device manager
Look for Keyboard option and expand it.
Please uninstall the driver and restart your device, that should be reinstalled after the reboot.
Method 2: Run Hardware Troubleshooter
Please press Windows key + R
Paste the command below to the Run box and press Enter:
msdt.exe -id DeviceDiagnostic
Method 3. Run Keyboard Troubleshooter
Please click Start Menu and type Troubleshoot then hit enter
Look for Keyboard option and run it.
Once done, please restart your device.
Please let me know the result. I'll be happy to assist you all the way until it's resolved.
Thank you,
Christine L
Independent Advisor