Level 1

20 points

macOS Ventura: external display resolution issue

I updated to Ventura yesterday (from Big Sur) and now I can only 'upscale' to higher resolutions on my 4K external monitor. I can choose the higher resolutions (e.g. 2560 x 1440) but it looks fuzzy, not sharp. It was working perfectly before I updated. The monitor is a 27" Viewsonic vp2756-4K, which has the following spec: Resolution: 3840 x 2160, Resolution Type: UHD, Refresh Rate (Hz): 60.

I'm connecting to the monitor via HDMI cable run through an Anker 533 USB-C Hub (5-in-1, Slim) which, as I said, was working perfectly until the OS update.

See display options below:

Does anyone have any ideas how to fix this, please?

Thanks 🙂

MacBook Pro Apple Silicon

Posted on Oct 30, 2022 7:10 AM

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Gavrog Author

Level 1

20 points

Posted on Nov 4, 2022 1:23 AM

Well this isn't exactly a fix but I now have high res again having removed the HDMI cable completely. I'm now running a USB-C cable direct to the monitor, skipping the adapter / USB-C hub also.

It's worth noting that Apple Support had me removing files from the library, restarting multiple times, creating a test user account, and even reinstalling Ventura completely in order to work out why this was happening. All of which took hours, and none of which worked. I believe there must be a bug affecting external displays within Ventura and I hope they identify and correct it soon 🤞🏼

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44 replies

Nov 4, 2022 12:50 AM in response to jinliang128

Same here. M1 MacBook Air, Uni USB C hub through to a Dell 4k external monitor. Never had a problem before and now have low resolution with Ventura. Surely the OS needs an update to fix this?

Gavrog Author

Level 1

20 points

Nov 11, 2022 12:15 AM in response to bradfrombracknell

Have you tried speaking to Dell? When I spoke to Viewsonic they basically said there was no firmware update / new driver as yet but they knew that one was needed...

Nov 11, 2022 10:48 AM in response to Gavrog

No, that's a good idea. I just updated the firmware but that was a May 2022 file so perhaps they need to push out another one.

Gavrog Author

Level 1

20 points

Nov 14, 2022 8:49 AM in response to Luis Sequeira1

Thanks Luis. That was one of the first things Apple Support had me do. It didn't work for me, but maybe others will find it works for them.

Nov 14, 2022 11:51 PM in response to Luis Sequeira1

Thanks Luis. I just tried that and, unfortunately, it hasn't resolved the issue.

Nov 19, 2022 4:19 AM in response to Luis Sequeira1

Thanks - yes; that's what I'm going to try next. Hopefully, a fix can be found. If so I'll share it.

Nov 23, 2022 9:15 PM in response to Gavrog

Same issue. So annoying. Working perfectly on Mac OS (PRE VENTURA). Mac OS ventura ruined the party

Dec 15, 2022 6:27 AM in response to bradfrombracknell

This fixed it for me!

Sveborek

Level 1

8 points

Jan 16, 2023 10:04 AM in response to Luis Sequeira1

This worked very well! Thanks!

In addition, installed on other Macs for being an awesome utility.

SvenDC

Level 1

8 points

Jan 19, 2023 7:45 AM in response to Sveborek

Yup, exactly the same situation here. Extremely frustrating to have paid for a good monitor and it's not being able to be used properly

Miokey

Level 1

0 points

Jan 19, 2023 10:42 AM in response to Gavrog

It's nice that Ventura gives you the option of a ton of resolutions, but the one I was using pre-Ventura is now blurry. I hope a future OS update fixes this.

Jan 29, 2023 8:49 AM in response to serhiy194

It appears that this shows up, just by plugging the adapter, with no display attached, is that right?

What is the specific Satechi adapter?

Does it need any additional software like DisplayLink?

Jan 29, 2023 12:38 PM in response to Luis Sequeira1

Yes, no display attached. It is just an adapter.

This one. No any additional software is needed.

https://satechi.net/products/satechi-slim-aluminum-type-c-multi-port-adapter?variant=27296854025

USchiev

Level 1

8 points

Feb 6, 2023 11:30 AM in response to USchiev

... but only once ;-(

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macOS Ventura: external display resolution issue