LG monitor stopped working with MacBook Pro via USB-C
Hi - appreciate any insights here! I use 2 LG HDR 4K monitors with my macbook pro (21 version). Until last week they were working fine - one with USB-C that also charges, the other via HDMI that can't charge. Last week I moved the screen and laptop from one room to another - short distance - and when I plugged back in, the USB-C version had stopped working. On the monitor, you can see the dark background screen that you see when it's about to connect, but nothing comes up and after a few moments it shows 'no signal' message. On the mac, it's as though it keeps trying to reconnect - charging goes on and off every few seconds and something rapidly flashes up in the background then disappears, on repeat.
- HDMI monitor is fine
- Same monitor when i connect via HDMI is also fine
- My husband has the same laptop and he can get it to connect via USB-C although had a moment when he initially tried when it didn't - he closed the laptop lid and reopened and then it connected fine for him. So it's not the wire or the USB port on the monitor
- I upgraded my software to Sonomo 14 and I can now see the background screen from the mac on the monitor, but this jumping around thing still happens where my laptop shows a different screen popping up every few seconds rapidly and then disappears. Like it's trying to connect to the monitor.
- No sign of the monitor on the displays panel - have tried closing and restarting many times, including with the wire plugged in and taken out, every possible combination.
- Tried all the mac USB C ports plus plugging it into an adaptor and no change. USB ports all work as normal with other devices
Has anyone else experienced this? At a bit of a loss with it now - and it's relatively new!
Thanks for any advices!
MacBook Pro 14″, macOS 13.5
