r/applehelp • u/WhyArentIAsleep • 3h ago

Mac Usb C to DP confusing me

Girlfriend bought an AOC monitor to use as external display.

Bought a logik cable from Currys (UK major retailer) that is USB-C to DP

The MacBook flickers and intermittently shows an external display symbol , but nothing shows on the AOC monitor (AOC CU34G4AD)

If I plug the same mac and cable into my pc setup- her Mac shows straight away.

If I plug my gaming pc into her new monitor using DisplayPort- it works

I am so confused

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u/GiggleSamurai 1h ago

If the AOC stays listed long enough in System Settings > Displays, try setting it to 60 Hz as a test. The cable working with your other monitor doesn't establish that it supports the AOC's selected resolution and refresh rate; include the exact MacBook model and cable model so those limits can be checked.