Lenovo desktop screen flickering

Hope I've posted in the correct forum.

Screen is flickering except what it's like is not off (black) and on but it looks like a black mesh fly screen has been suddenly pulled 5/6ths of the way down the screen. I can still see through the "fly screen" but it's a bit grainy. It flashes this way at irregular intervals but averaging about once every two seconds. The frequency seems slower for about the first few minutes after switching the computer on. Gets more regular and frequent as time goes on.

Bottom 1/6th of screen is OK but sometimes goes a bit wonky with vertical lines.

I tried updating all drivers with DriverEasy but that didn't work.

Any ideas?

It's an all in one so no cable or connections.

Tried new driver from Intel's website but no joy.

Thanks for responding though.

Bastet said:

Did you use DDU to cleanly remove the driver? If not then please try that.

Click to expand...

Thanks for your help but a friend who knows far more about these things than I do walked me through some diagnostics and concluded the problem is in the hardware not the software. For example the image on screen casts out to a Chromecast plugged into my TV without any problem.

Anyway, I'm kind of nervous about cleanly removing the driver for my screen because does that not make my screen go blank and then how do I know how to reinstall a new driver?