External camera laggy - low frame rate

I have a coworker running into the exact same issue with a 2020 MacBook Pro and 5k UltraFine. Tried all the same troubleshooting steps just short of wiping the device. I called Apple support today and mentioned this post and reference number from above and unfortunately could not find a solution.

I am having the same issue as described here with a LG Ultrafine 5K and Macbook Pro 13 inch 2020 with 10th gen Intel CPU, running macOS 10.15.5 (19F101). Has anyone heard anything about an upcoming fix for this?

Same exact issue. The FrameRate of FaceTime camera with LG ultra fine 5k is laggy. One frame every 5-7 seconds. I've submitted a bug report as well to help raise awareness. I do also get the occasional blackout of of the external monitor. I'm running in clamshell mode. Frustrating. My 2019 MBP still works great with this monitor. But my wife uses that now. But makes me sure it's not the LG - definitely the new machine.

Same here. Also tried using the LG utility to reset the screen to factory defaults.

Submitted bug report.

I hope this is an easy software fix as I own two of those LG 5K displays (penultimate models).

I just returned the machine (within the window) and will try a 16 inch MBP instead which I suspect will fix the issue. It’s a PITA but I don’t hold out much hope that this will get fixed; it’s an EOL laptop (with ARM coming) and an EOLed display.

I just reported the exact same issue as well.

2020 MacBook Pro, laggy camera on External LG UltraFine 5K, my replaced Mid-2017 MacBook Pro worked fine. Noticed on Zoom, GoToMeeting and Teams, all the same.

I also had a weird color shift going on...warm to cool to warm, etc... Resetting NVRAM and PMC seemed to clear that up though.

Getting the same issue after upgrading to a 2020 MBP 13", top of the line. I'm using the LG 4k monitor though, but I suspect since it is a MacOS software problem it's the same thing going on behind the scenes.

I have the most current 13 inch macbook pro with 4 ports connected to the most current model LG Ultrafine 5k monitor. When I use Facetime ot Zoom and switch to the LG monitors camera it is very laggy. I am unable to use. Any update on on this?

That's disappointing for you, but actually very useful as an additional data point.

If there is a GPU accelerated application which can use the LG's camera and have the AMD GPU handle it, we can conclusively rule out the issue being specific to the Intel integrated graphics on the CPU, which would actually be a very good thing; it would prove that the issue is software rather than hardware related and therefore no recall is required, only a bug fix.

I feel the more Apple receives notices of this issue it will be fixed. Everyone spread the word the get Apple on it. Seems to be a software patch needed of some sort. It is a Apple collaberated/suggested monitor..not sure how Apple missed this issue, but I am sure they are already on it.

I posted at the beginning of this validating the problem. I’ve following the discussion and share in the frustration of an ongoing problem with no acknowledgement from Apple and no apparent resolution in the works.

That being said, I wanted to share a work around. Reincubate (https://reincubate.com/camo/) has created an app for both the Mac and iOS that allows you to use the high quality camera of your iPhone as a web cam for your Mac. The app is “Camo” and it works great. By using a tripod or mount for your phone, the video quality is superior to the MBP internal camera. Free version worked great on Zoom. Upgrade gives you helpful bells and whistle, but the free version does everything you need for video conferencing. Even if the LG external monitor camera was working, I would be tempted to use this Camo app instead. Just thought I’d share.

But still doesn’t make up for the significant oversight of a current, expensive, high quality, Apple promoted external monitor not working with Apple’s newly released MBP. I’m a longtime user of Apple products but this situation has negatively impacted my confidence in Apple. I’ll continue to follow this discussion in hopes a resolution is found. Any way to get further traction of this issue by having AppleInsider or 9to5Mac or other Apple news outlets and blogs do write ups about this issue?

I probably wasn't clear that you need to download both the iOS app and the Mac OS app. Open apps on computer and iPhone and should work. Just got don't using it for a call. Yes, need a way to hold it and tripod or a mount works great. Good luck!

Strange UX - there is no mention of the need for an iOS companion on their web site landing page. You can find it buried in the 'downloads' page. And - once the connection fails, there is no onboarding or hints to suggest that your iOS version is not installed.

Sorry to complain - I'm a UX designer and this kind of stuff makes me apoplectic.

In addition to the camera of the Ultrafine 5K being extremely laggy on my MBP 2020, I have now problems where the USB devices that are connected to the Ultrafine are often not recognized by my Mac. Replugging the monitor a few times fixes it, but also sometimes leads to a total system crash... Does anybody else have this problem?