How do I resolve the issue of two OLED monitors not being detected by a newer MacBook Pro and macOS 26.2?

I am unable to connect two Alienware AW2725Q QD-OLED displays to my M4 Pro MacBook. The monitors are on the latest v102 firmware from Dell. I am using two DP 1.4 to USB-C cables of the same brand directly from the two monitors to two separate thunderbolt ports on my Mac.


The EDID/id information from the monitors seems to be correct and are unique in the serial/id field.


Oddly, when I did the MacOS on my Mac from 26.1 to 26.2 just now - while I left both monitors plugged in through the update and reboot - I had both monitors detected and working for the first time. Thinking this was a fix in 26.2 I was elated until I removed the monitors, and then reattached the cables, only for the same problem to occur. Subsequent reboots with monitors plugged in don't detect both displays as one might have imagined.


These two monitors work flawlessly on my work MacBook M1 Max on Sequoia and of course works with my windows machine.


Is there any known bug from Apple about this? From what I can tell these monitors should meet Apple's supposed stringent EDID standards from what I have heard from other community posts.


[Re-Titled by Moderator]

Original Title: Escalating - not sure if we can consider it as PII

MacBook Pro 14″, macOS 26.2

Posted on Dec 21, 2025 8:36 PM

Reply
1 reply

Dec 21, 2025 9:53 PM in response to stevenvc93

How do I resolve the issue of two OLED monitors not being detected by a newer MacBook Pro and macOS 26.2?: […]These two monitors work flawlessly on my work MacBook M1 Max on Sequoia and of course works with my windows machine.[…]

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Troubleshooting Monitor Connection:


Verify the Connection:

First off, see if the monitors are even seen: 

  1. Hold Down: the Option key
  2. Click: the Apple menu
  3. Choose: System Information or System Report
  4. Select: Graphics/Displays and USB from the list on the left
  5. Look For: the monitors

How do I resolve the issue of two OLED monitors not being detected by a newer MacBook Pro and macOS 26.2?

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