GZunit I actually haven't used an external monitor in a long time. Eek! I am interested in buying or trying out whatever is needed to help solve this though! Is there one that you recommend or like to use?

async Ahh! That is good to know! Thank you so much for the tips!! I will do that right now! I am not sure about the one issued by IT, but my personal computer hasn't been in a very long time and it looks terrible. Haha! I have makeup everywhere. That's a good call out, and something I will also look into though!!

Sentiny Ohhh! Really? That's a good call out! I will look into that! Thank you so much!

I have a very similar problem. I have a PC with a monitor which I can use all day without issues. One day, I lend the monitor to a coworker. I told him he could keep it, and I bought a new one (of the same model). When it arrived I instantly felt dizzy by watching at the screen, as if I couldn't focus while I read. I switched monitor with my coworker and voila! I could watch it again all day without symptoms.

Is worth noting that even they were the same model, the first monitor was bought in 2022 and the second one in 2024. So maybe something changed in the panel. But this a prove that it's not only a software problem, it's also a hardware problem.

    RobC on Macbook air m2 Sonoma 13 this command did not return anything.

    • RobC replied to this.

      Donux Try again with the right quotation marks. They were modified when I pasted the command:

      ioreg -lw0 | grep IODisplayEDID | sed "/[^<]*</s///" | xxd -p -r | strings -6

      Donux

      A better option:

      ioreg -lw0 | grep IODisplayEDID | sed "/[^<]*</s///"

      If you put every answer with the "00ff…>" format into an edid-decoder like this one:

      https://hverkuil.home.xs4all.nl/edid-decode/edid-decode.html

      you could get much more details of your panels, like the vendor and date in which they were manufactured among others.

      dev