DisplayPort(DP) to USB-C Monitor is not Working in iMAC 2019 Intel after update macOS14 Sonoma

DisplayPort(DP) to USB-C Monitor is not Working in iMAC 2019 Intel after update macOS14 Sonoma

I used it before update. It was completly ok. but after update OS. 13 to 14. It never work.

DisplayPort(DP) to USB-C Monitor is not Working in iMAC 2019 Intel after update macOS14 Sonoma
 
 
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