Samsung 34" G8 screen blurry on MBP

Samsung uses the name "G8" for at least two monitors:

• A 34" ultra-wide, curved OLED monitor with 3440x1440 pixel resolution (109.7 PPI) and 175 Hz refresh rate.
• A 32" OLED gaming monitor with 3840x2160 pixel resolution (137.7 PPI) and 240 Hz refresh rate.

Perhaps the '8' is a generation number, like the '3' in M3, M3 Pro, and M3 Max. I'm adding this note in case anyone with "the other G8" stumbles across this thread.

For anyone else with this or similar issue I solved it by plugging in and out the power from my Odessy G8 for around 30sec. After that I powered it on again and it seemed to recognise the USB-C connection to my Macbook.

Hope that helps someone else. (also make sure you have USB-C 3.1 Gen2 at least supporting 10g speed)

That appears to be a very nice "4K" display with USB-C input.

A deep color display at this resolution is using a stream of data so fast that it is approaching the limits of switching speeds of digital data.

About your connection method:

Are you using any adapters or Docks in the connection?

is your cable a Certified USB-C 3.1 cable with USB SuperSeed plus stamped or molded into the end and no longer than One meter in length?

Cables "shipped in the box" are often "lowest bidder" cables, and are often barely good enough to keep you from returning the product. to run properly at top resolution, you need a certified cable as above.

A 0.8 meter genuine ThunderBolt cable should be more than adequate.

You should check the internal "on-screen' display settings in the display itself to be sure it is not set for some other purpose, such as gaming .

Thanks for the tip! I had similar issues where it would force everything to 16:9 natively and wasn't recognizing it was ultrawide, leading to the picture being stretched and fuzzy. My USB-C cables weren't working either. Thunderbolt 3 cable worked like a charm for the 2019 mbp.

I bought a 3mk thunderbolt 4 cable and another class 3.Both allow me to choose the native imageresolutionhowever the maximum refresh rate is 59. 88 Hz onmacbook pro 13 2019 with Intel. could you chooseahigher refresh rate?

I know your original post is old, but here goes (might help someone else as well). I have the same monitor (G8 Oled 34"). Download Better Display from github (google it), amazing app that opens up A LOT of additional screen settings. There you can set the resolution to make it look a lot better than the standard choices. There's a good Reddit post with great info: Tip for if you're using 3440x1440 displays with macOS : r/MacOS (reddit.com) .

Read it all. :)