Hi lumolde ,
First of all, we sincerely apologize for the inconvenience that had caused. We thank you for bringing this matter to our attention. For us to further assist you, we would like to know more about this issue.
- Have you made any changes on your device (e.g. settings or updates) before this issue occur?
- When did this issue occur?
- Have you tried to connect the Surface to the power supply and check if the issue still persist?
- Have you tried to detach and then reattach the keyboard?
- What windows version and OS build number that is currently installed on your Surface?
Here are the few things we suggest you do:
- Check Settings. Go to Settings > Devices > Touchpad and select Reset. Please observe the device. If it still not meet your expectations, try adjusting the settings, like Touchpad sensitivity.
- Install and run Surface Diagnostic Toolkit. This toolkit resolves the most common Surface issues. Please follow on-screen instructions posted and Restart your device after performing the toolkit.
Looking forward for your response and keep us posted of the outcome.