External display doesn't work, keeps disappearing and reappearing in settings

Question

I am trying to connect my MacBook Pro to an external display (HP E24i G4) via HDMI. The display doesn't work. When I go to Display Settings to check on it, I see the following:

Then, in a split second, this

And so it keeps "blinking", appearing and disappearing in display settings. The display itself stays dark the whole time

The display works fine with other computers. What can I do to resolve this?

score 0 · Accepted Answer · answered Mar 03 '23 at 13:29

0

Press the "Settings" button on the display itself to open the settings menu. Navigate to "input". Most likely it is set to DisplayPort or something else. "Auto-Switch input" is set to True which should lead to the display auto-detecting that it needs to use HDMI, but with a Mac it leads to this weird blinking behavior. Switch to HDMI.

answered Mar 03 '23 at 13:29

0x60

101

You will get better results if you use a native USB-C cable either Type-C to C or Type-C to DisplayPort. DP is the native signal so converting to HDMI can cause issues – Allan Mar 03 '23 at 14:08

External display doesn't work, keeps disappearing and reappearing in settings

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