M4 Macbook pro

[rboerner]

Originally Posted by indepthmarketing

I'm encountering the same issue as well with my new M4 MacBook Pro. I'm using two Plugable UGA-4KDP adapters to connect my MacBook Pro to external monitors. Worked fine on my old Intel Mac, but just switched to a new M4 and am having issues.

My issues are mainly with Chrome and Slack: the display is super-laggy when scrolling and dragging and dropping, and the pointer sometimes skips around. Don't have issues with the primary display with the same pointer, so it's not a mouse issue. For some reason, I don't have a similar issue in Apple Mail.

I'll go ahead and send my details to that same email address listed above.

According to the information provided by Plugable for the UGA-4KDP adapters --> https://plugable.com/products/uga-4kdp the adapters support a maximum resolution of 3840x2160 at a 30Hz refresh rate. This is half of the more typical 60Hz.

If you are running your displays at 3480x2160 at 30Hz, it could result in behavior similar to what you describe.

It appears that lower resolutions support a 60Hz refresh rate. If you lower the resolution of the displays connected to the adapters to say, 1920x1080, does that change the behavior?