Screen flicker after reboot

My screen has always flickered when using it for a few minutes after a reboot. It can be a bit glitchy or show chequered blocks as I touch the screen. I hoped it would be a bug that was fixed by now but it has continued. Since I need to reboot often to work around other issues this is a common occurrence for me! Hope someone can help please?

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2 posts were merged into an existing topic: Glitching menus and lists after boot