External Display Issues Since Upgrading to macOS Tahoe

External Display Issues Since Upgrading to macOS Tahoe

Since upgrading to macOS Tahoe, I’ve been experiencing issues when connecting my MacBook Pro to a Dell P2723DE external display using the correct USB-C cable.

The external display regularly freezes every few minutes, typically after the system has been idle for a short period. When this happens, the screen becomes unresponsive and only refreshes after I unplug and reconnect the display.

This setup worked perfectly prior to upgrading to Tahoe, so the issue appears to be OS-related. Any suggestions or potential fixes would be greatly appreciated.

Model Info

Macbook Pro

13-inch, 2020, Four Thunderbolt 3 ports

Processor: 2 GHz Quad-Core Intel Core i5

Graphics: Intel Iris Plus Graphics 1536 MB

Memory: 16 GB 3733 MHz LPDDR4X

macOS: 26.2 (25C56)