Dell monitor gives error after adding MS team to macbook pro

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4 points

Dell monitor gives error after adding MS team to macbook pro

Have a MacBook Pro 15" and have had two monitors attached for years. One is an Acer, and the other a Dell. I keep the laptop closed and use the monitors as extended displays all the time (the Acer is probably set as the main display). The only change I made recently is to add MS Teams as Skype is going away. Now, unless I have the laptop cracked open about two inches, the Dell monitor won't display and gives me a message about the display settings. "The current input timing is not supported by the monitor display. Please change your input timing to 1920 x 1080, 60Hz or any other monitor listed timing as per the monitor specifications.'

I can't set the display setting for the Dell to those values unless the laptop is open; otherwise it shows me fewer selections. I tried resetting the Dell monitor to no avail and unplugged the monitor and plugged it back in. There are no updates for the display drivers and my Mac is up to date.

MacBook Pro 15″, macOS 13.7

Posted on Mar 23, 2025 10:08 AM

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Answer 1

JB_4433_Apl Author

Level 1

4 points

Mar 23, 2025 1:55 PM in response to Grant Bennet-Alder

Hi, the Dell is extended from the Main display, not mirrored. I'm not really worried about the resolution, more that when I close the laptop, I can't use the Dell monitor, only the Acer. I want to use both of the monitors and not the MacBook screen.

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Answer 2

Mar 23, 2025 12:16 PM in response to JB_4433_Apl

It sounds like you have the dell display Mirrored to the built-in display.

if that is the case, the only resolutions available will be ones that can be supported by BOTH displays at exactly the same time.

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Answer 3

JB_4433_Apl Author

Level 1

4 points

Mar 25, 2025 11:23 AM in response to Grant Bennet-Alder

I don't know what other Privacy Permission changes are needed, but even if I don't have Teams open at all, the Dell goes dark, all my open apps move to the Acer monitor, and the Dell gives me that message when I close the laptop. I obviously can't see what is displaying on the laptop when it is closed, but the apps from the Acer move to it. Also, I had the Dock set to display on the bottom so is always on the laptop screen now so I can't get to any apps when it is closed. It used to be on the bottom of whichever extended monitor the cursor was on. If I move the Dock to the left side of the screen, it is visible when I close the laptop.

I have had this same setup for months and months with no problems, until the latest Mac update and I added the Teams app.

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Answer 4

Mar 23, 2025 3:27 PM in response to JB_4433_Apl

another issue is that Teams needs Privacy Permissions changes, and the screen may be going dark because you did not provide enough access.

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Dell monitor gives error after adding MS team to macbook pro