When I connect monitor to my new MacBook Pro 2020 13 inch via hdmi to usb-c then I can see the picture like this:

enter image description here

Why there is a lot of blue points?

My cable and converter:

enter image description here enter image description here

  • Looks like a TV. Disable any picture enhancements in the TV: – Thorbjørn Ravn Andersen Oct 24 at 9:39
  • What do you mean? It is just simple monitor from Samsung. – Bartłomiej Semańczyk Oct 24 at 9:40
  • I'm sure you mean USB-C to HDMI. It looks like the first signs of a dying GPU, but on a new machine I'd first suspect your converter/cable. – Tetsujin Oct 24 at 15:43
  • @Tetsujin. One more question: First signs of dying GPU on my additional monitor or on my Macbook Pro? It is possible for my monitor, because it is quite old (5-6 years), and my converter is like in the question, I have added an image and is relatively new. Cable is hdmi -hdmi and is also old. – Bartłomiej Semańczyk Oct 25 at 9:16
  • 1
    Displays don't have GPUs. The converter/cable is still my prime suspect. – Tetsujin Oct 25 at 9:26

You must log in to answer this question.

Browse other questions tagged .