I have an issue with an external monitor, confirmed with multiple users on MacRumors forums [1], that looks like a software bug. When using opened Macbook with

I have an issue with an external monitor, confirmed with multiple users on MacRumors forums [1], that looks like a software bug. When using opened Macbook with an external screen power usage by discrete GPU is not less 19W almost no matter what (resolution, screen size, etc.). In my case, with new LG 5K, GPU power usage in clamshell mode is near 5W and with the lid open – 19.5W (and the laptop is too noisy to be usable as an additional screen). [1] https://forums.macrumors.com/threads/16-is-hot-noisy-with-an-external-monitor.2211747/page-22 https://forums.macrumors.com/threads/16-is-hot-noisy-with-an...