Recently I've been having various problems seemingly caused by the display driver. The screen sometimes gets random patches of coloured dots or shows only a solid colour or vertically striped screen for a while or the mouse cursor gets bigger. Sometimes it stops and I get a notification saying the "display driver has stopped responding and has recovered", but usually the PC just ends up crashing and restarting. It generally, but not always, happens when watching a video or playing a game.
Based on this page and some others, I updated to the latest driver and added a TdrDelay value, neither of which helped. I then got rid of a lot of my many google chrome tabs and this briefly seemed to help, but then it started doing it again. I've also reinstalled the new driver to make sure it was done properly but that didn't help either. Now I'm out of ideas for what to do. Any suggestions?
AMD Radeon R9 200 graphics card