LG Monitor stopped working over USB C on MacBook Pro M1

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birdbrain
birdbrain Veteran Member • Posts: 3,916
LG Monitor stopped working over USB C on MacBook Pro M1

My 5K LG monitor which is connected to my MacBook Pro M1 via USB C suddenly stopped working?

No picture at all was visible, the monitor sensed that something was connected and asked if I wanted to switch to that input. But when I did the screen was blank and it would go into sleep mode.

The USB C port still powered my MacBook Pro.

I tried connecting my iPad Air to the same monitor via USB C and that didn't produce a picture either.

I then went into the monitors menu and under settings selected reset. Having done that it worked again when connected by USB C.

When it wasn't working via the USB C port, it worked via an HDMI port using a USB C hub which has an HDMI output.

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Phil
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