Hi Deb Raskob,
Thank you for reaching Microsoft Community. We appreciate for sharing your concern to us.
I am aware of the issue you are experiencing with your Surface device, which occurs when you turn it on after not using it for a few days and the screen flickers and has vertical lines. I am here to help and let us both isolate the issue. Allow me to ask some questions.
- May I know which Surface pro 9 processor do you have, the Intel or 5G(SQ3)?
- Would you mind sharing a photo of the issue?
- Does the issue go away if you reboot?
Kindly try the following steps below.
Refresh the screen with keyboard shortcuts.
If the device has power, try refreshing the screen with keyboard shortcuts. Connect your Surface to a keyboard, then press the Windows logo key + Ctrl + Shift + B.
Force a restart.
You can try to force a shutdown and then restart. To do this:
- Select Start > Power > Shut down , and wait a moment for your Surface to shut down. If you have any apps open, you may be prompted to close them prior to shut down.
- Press and hold the power button for 20 seconds. If you see the logo screen appear after a few seconds, continue to hold for the full 20 seconds until you see the logo screen again.
If your Surface reboot and the screen is back, I recommend trying the other solutions provided from this article What to try if your Surface screen is distorted, is flickering, or has lines running through it - Microsoft Support. You can simply skip the ones you've already done.
Kind regards,
Lavenia