Level 1

16 points

MacBook Pro M3 Pro with Samsung Odyssey G9 OLED Smart

Hello community,

I'm sure someone might have asked the same question before, but allow me to inquire. I own a 15-inch MacBook Pro with M3 Pro, and I want to use it with a Samsung Odyssey G9 OLED Smart display. I'm utilizing an HDMI 2.1 cable for the connection between my Mac and the display. However, I'm encountering issues as I can't achieve the full resolution of the display, and the aspect ratio appears distorted (image attached - after shrinking it down to FDH). The maximum resolution I can currently use is 3840 x 2160. My Mac is connected to a power source. Could you please provide some advice on how to set it up with the correct resolution and aspect ratio?

Thank you very much!

MacBook Pro 15″, macOS 13.6

Posted on Jan 11, 2024 10:43 AM

Top-ranking reply

ankeuttaja

Level 1

14 points

Posted on Feb 14, 2024 1:04 AM

I had similar kind of issues: my M3 MacBook didn't identify the screen correctly and only offered a subset of the resolutions available. I decided to use BetterDisplay (https://github.com/waydabber/BetterDisplay) and manually set the display information, after which everything started working fine.

However, this is just an ugly workaround. There's definitely something wrong with M3 HDMI port/driver: I've tried several cables and none of them identify the display correctly. When using PIP (I'm using G9 with PIP, both HDMI + Display port connected to my M3 = 2x 2560x1440), I can't use the MacBooks HDMI port because of the previous issue. I'm using usb-c -> displayport & usb-c -> hdmi cables instead.

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38 replies

krulaks

Level 1

14 points

Apr 24, 2024 10:14 AM in response to ankeuttaja

What options did you change in BetterDisplay?

Having an issue with 2023 Macbook Pro M2 Pro.

I tried hdmi-hdmi and usbc-hdmi with same result - max resolution 3840x2160.

Tested with hdmi 2.1 cable that I'm using for my PC at 5120x1440p240Hz

May 10, 2024 3:24 AM in response to Grant Bennet-Alder

Grant: Club 3D CAC-1557. No dock in between. It's supposed to support 120 hz only. Weirdly enough the display was running at 5k@240hz after the OS setup. When I switched it to 120hz, I can no longer go back to 240hz...

Amazon

Grant Bennet-Alder wrote:

Sinderellaz

--

what cables, adapters and docks are you using to make this connection?

Avpnj

Level 1

8 points

May 14, 2024 5:39 AM in response to Sinderellaz

I purchased the same cable as you listed. Upon using that, my display setting at least recognizes the G9 similar to the screenshot you show and the in-build display changes its resolution but the monitor is not getting the signal nor did it light up. Any other setting I am missing?

Mar 6, 2024 3:17 PM in response to Freott

Freott--

¿exactly which model-year MacBook Pro and exactly which processor?

Freott

Level 1

8 points

Mar 7, 2024 1:37 AM in response to Grant Bennet-Alder

Apple M3 Max 14” Nov 2023 16 core CPU, 40 core GPU

May 8, 2024 7:43 PM in response to Grant Bennet-Alder

that Samsung display at 5120 by 1440 features Picture-By-Picture

Interface

Display Port

1 EA

Display Port Version

1.4

Headphone

Yes

HDMI

2 EA

HDMI Version

2.1

May 8, 2024 10:43 PM in response to dejv_it

I just upgraded to a M3 MBP 14". No issues getting the G9 running at full native resolution...

Avpnj

Level 1

8 points

May 10, 2024 3:07 PM in response to Sinderellaz

Is that all you needed was this cable? I have the 49" Odyssey with MBP M3 Pro (18GB) on Sonoma 14.4.1. Thanks.

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MacBook Pro M3 Pro with Samsung Odyssey G9 OLED Smart