The AMD GPUs power consumption shoots up from 5 to 20+ watts when you connect an external monitor. Closing the laptop's lid is the only reliable workaround, but

The AMD GPUs power consumption shoots up from 5 to 20+ watts when you connect an external monitor. Closing the laptop's lid is the only reliable workaround, but even then you only have to fire up Photoshop to make the device's fans go wild. Zero confirmation of this widespread issue from Apple or AMD. €6000+ machine No more Apple after this for me