My older Mac mini is showing some pixels on screen. It was good around a year ago but now it's not. There are no pixels on startup screen. I tried to change wallpaper and resolution but it didn't work. Btw, I added more RAM some time ago but I think that didn't do anything. Please write if you know anything about this. Thank you.
Earlier Mac models
Hi, PetarCapan, you’re not gonna want to hear this, but you might have a failing video/graphics card… you’re going to want to run Apple Diagnostics to verify that… on an Intel Mac, restart and hold down the “D” key on your keyboard and Apple diagnostics should come up and test each general part of your Mac Mini, giving it either a “pass” or “fail” grade…for a Mac with Apple Silicon built in… see this link ( it also includes the intel mac instructions)
Use Apple Diagnostics to test your Mac - Apple Support (CA)
if it is failing, then your only option would be to backup your Mac, make an appointment with either your local AASP ( apple authorized service provider) or Mac store with Genius Bar, and take it in for service
john B
OP’s Mac is likely obsolete - Apple/AASP will decline servicing.
Pixels or something showing on Mac mini
