Samsung Odyssey G9 Mac M1 5120×1440

Posted on January 22, 2021 by Chris Duke

This is how to get 5120×1440 on Samsung Odyssey G9 on Mac M1.

I have a 16GB 2020 Mac mini M1 with the Samsung Odyssey G9 ultra-wide 49″ monitor. I bought this USB-C to DisplayPort cable to get the max resolution of 5120×1440 but I had to jump through a few hoops to get there. Here’s how to do it.

These are the simple steps with macOS Big Sur 11.1:

1. The G9 must be set 60Hz, at least initially (Adaptive Sync also needs to be disabled, but I believe changing to 60Hz does this automatically). So yes, that means you cannot use your monitor at 240Hz. So, boo. I don’t use it for gaming, but rather for productivity/dev so I don’t really care about it. If you do, then keep 240Hz and you’ll have to also live with the reduced 3840×1080 resolution. I’ve been able to get it to work with 120Hz but initially set it to 60Hz.

2. Go to System Preferences > Displays and while holding down the OPTION/ALT key, click “Scaled”.

3. Now select the 5120×1440 resolution. Boom.

This is the way.

 

3 Replies to "Samsung Odyssey G9 Mac M1 5120x1440"

  • André S.
    March 22, 2021 (4:54 am)
    Reply

    Dear Chris,

    Interesting article.

    Is the eye-screen distance the same wherever you look on the screen?
    This is an important issue for me when choosing a curved screen (progressive glasses).

    Regards,
    André,

    • Chris Duke
      March 22, 2021 (8:11 am)
      Reply

      It is the most curved monitor you can buy (still, I believe) but the ends of the screen are still definitely further away than the center. I wear reading glasses and it’s perfectly acceptable for me.

  • André S.
    March 22, 2021 (8:23 am)
    Reply

    Many thanks for your feedback :-)

    Regards,
    André

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