Follow these steps to troubleshoot a distorted or garbled display on a laptop:
- Restart your laptop and check if the display returns to normal.
- Check all monitor wires and connections.
- If your laptop has an AMD GPU, uninstall the old driver and reinstall a new one.
- If your laptop has an NVIDIA GPU, uninstall the old driver and reinstall a new one.
- Perform a system restore to a date before the issue started.