Samsung Ultrawide 34 - Mac Pro Not Filling Screen

[Maac123]

Hi all,

I just purchased a Samsung Ultrawide Curved 34" monitor for my 2021 Macbook Pro 16". I only use it for essays and writing so the spec was good enough. I have played around with the display options and found that when I use the monitor as the main screen it is too pixelated, like a PC. When I use the monitor as a mirror for the pro the appearance is much better and clearer. However, I am left with two big black spaces on either side and I can't 'fill' out the entire monitor screen. Any tips on how to do this, if its possible at all?

Thanks!

 

[Fishrrman]

How are you connecting to the display?
By that, I mean through HDMI, or something else?

Have you tried "SwitchResX", to see if it offers more display resolution options?

 

[Maac123]

Hi, it’s connected via the thunderport cable.

I’ve tried Better Display but it doesn’t have any effect on filling those black bars.

This issue is only when I mirror the MacBook. I prefer mirroring because the display is significantly better on the
Monitor. If I use the monitor as an extended screen I don’t have the issue of the black bars but the pixelated quality returns.

 

[Fishrrman]

"This issue is only when I mirror the MacBook."

I'm going to GUESS that when you "mirror" what's on the internal display, the "mirrored image" duplicated on the external display will be the same number of pixels wide that you would see on the internal.

Even if the external has more pixels horizontally, you're only going to see the resolution the MB offers.

I really don't see the point to this.
The second display is to EXPAND the desktop (at least it would be for me).