Samsung Odyssey Neo G9 57" monitor with Macbook Pro M1 (2021)

mars148 wrote:

PLEASE APPLE address this issue in your OS so proper support at very high resolution so we can scale fonts etc and still keep high resolution

Support of very high resolution displays in MacOS works. if yours is not working, it is NOT due to a defect in MacOS.

if you have read this entire discuuion and yours still does not work, please start a NEW discussion so that your specific issues can get the attention they deserve. Readers can not follow the nuances of additional situations when posted here, because this discussion is already too convoluted.

So, I have a M2 Max with HDMI 2.1 connected to the Samsung 57" 4K/4K monitor, even though it says I'm getting the full resolution, the PPI seems lower than a regular 32" 4K monitor, why would that be?

When you attach a large display to a MAC, the graphics are displayed at full native resolution of the display. PROVIDED that is achievable with the cables and adapters your are connecting. Most common and shipped in the box HDMI cables are Grossly inadequate for this job.

If your Mac can not attain an ERROR-FREE connection at the specified resolution and refresh rate, a lower resolution may be used, or the display may go blank.

HDMI cables you want for HDMI-only Displays (higher resolutions than 720p TV sets) are marked as Certified with an anti-counterfeiting tag and are labeled:

"Premium High Speed HDMI cable" or that + "with Ethernet" --OR--

"Ultra High Speed HDMI cable" or that + "48G"

Cables with No Certification tags are good for your standard 720p TV set, and not much more.

HDMI was invented for HD TV sets. it works great at its original resolution of 720i or 720p. At higher resolutions, it quickly develops issues that are complex to solve, and the cables and adapters required to solve are NOT intuitive.

I picked up a 8K/10K HDMI cable, no change in quality of the text from the HDMI cable that was included in the box.

The display's resolution is 7680 x 2160 and that is what is showing under the display settings. If I change it to default of 3840 x 1080 (Default), it just increases the size of the text and maybe clears it up just a tad, but then I lose all that glorious space.

What am I missing here? My 32" 4K is clearer than this.

<<. Or is it simply not possible to achieve the 7680 x 2160 resolution from my Macbook Pro M1? >>

Interface

Display Port

1 EA

Display Port Version

2.1

HDMI

3 EA

HDMI Version

2.1

The highest DisplayPort refresh rate shown as supported for Full 8K width is 30 Hz.

M1 Macs feature HDMI 2.0, which directly supports up to 4K display width.

To run this essentially 8K wide display on an M1 Mac over ONE cable, you would need to use a DIRECT ThunderBolt connection (which the display does not support) or use two cables.

TWO Cables:

On the Mac, you set up two half-width displays, and arrange them in an order that puts then side-by-side.

on the display, you use the Picture-By-Picture feature (cousin of Picture-in-Picture) to have the two half-displayc coming in on two cables placed side by side on the screen.

You do not need these two cables to be the same protocol -- one can be HDMI and one DisplayPort, or any combination.

Readers report this works near-flawlessly.

M1 (plain) only supports up to ONE external display, so that display can not be supported on M1 (plain).

M1 PRO and MAX support two and four external displays, respectively. So the TWO-cable approach could be made to work on those models.

Ah, your MacBook has a HDMI port. What will happen if you connect the display via USB C instead?

Thanks very helpful- are u using this screen as well and with which Mac/M-Version and resolution?

NextCspr is it correct that you managed to achieve 7680 x 2160 resolution by the use of the ”Hyper Drive Dual 4K HDMI 10-in-1 USB-C Hub connected to the correct usb-c port?

Very nice way to set it up, thank you.

Gotcha. Didn't know that was a further limitation (of the M1 Chip).