Hi Christos8682,
Thanks for reaching out to Microsoft Community and posting your inquiry. We appreciate the effort in performing the initial troubleshooting steps.
The issue could be on the graphics driver, we suggest the steps below to troubleshoot:
• Run the System file checker for your Windows 10.
• Open the task manager > go to Performance Tab > Check if the graphics card is detected and performing
• Are you using the 13.5" or the 15"?
• Download the driver's package manually. Check the specific OS build of your Windows Settings > System > About. Download the driver and firmware for Surface, choose Surface Book 2 and click download on the next page. Please choose the .msi file that matches your current OS Build and click Next. After the download, run and install the .msi then Restart the Surface Device.
Please let us know about the issue by replying on this thread.
Kind regards,
John Neil_J