Horizontal Black lines on display

[Lilly16]

Since a few days I have Black horizontal lines evenly spread over my display. It happened to my laptop (I have a Samsung Galaxy Book S, if that would be of relevance) before, then I was able to fix it with an Update which unfortunately didn't work this time.
I already tried a lot of different things: Updating my laptop through Windows Update, updating my graphics driver through the device manager, going back to the last version of the graphic card driver, searching for Updates on the Intel page directly and installing them.
I'm pretty sure that it's a problem with the driver, but I'm running out of ideas of how to fix it. I would be very grateful for more help!
I attached a picture of the stripes.

[ArchieD_Intel]

Hi Lilly16,

Thank you for reaching out to the Intel Community Forum. To assist us in investigating the issue, please provide the following details:

• When did the issue start? Was it after a specific driver update?
• What are the troubleshooting steps that you tried so far?
• Have you used DDU to completely remove all residual drivers and installed a new one?
• Have you tried connecting the laptop with an external monitor?

Additionally, to gain a comprehensive understanding of your system, please use the System Support Utility (SSU). This tool will generate a text file compiling all your system information. You can follow the instructions at this link and send the text file here. Help Guide for the Intel® System Support Utility.

If you have any questions, please let us know. Thank you.

Best regards,

Archie D.

Intel Customer Support Technician

[Lilly16]

Hi Archi D.,

• the issue started on the 28th of June and there was no Update in a reasonable time before that.
• I already tried:  
  • Updating my laptop through Windows Update
  • updating my graphics driver through the device manager
  • going back to the last version of the graphic card driver
  • searching for Updates on the Intel page directly and installing them
• I have not used DDU yet to completely remove all residual drivers and install a new one, that will be my next step. I was just a bit scared that I would make the problem worse.
• And sadly I do not have the possibility right now to connect my laptop to an external monitor

I attached the file with my system information from the SSU.

Thank you for the support.

Kind regards,

Lilly

[ArchieD_Intel]

Hi Lilly16,

Thank you for your update. I've sent an email to your active email address for the next step of the process.

Please check both your Inbox and Spam folder for my email, and once received, kindly acknowledge it.

Best regards,

Archie D.

Intel Customer Support Technician