Can you disable power from LG Ultrafine monitor to Mac? I am experiencing a potential known issue of second monitor not waking when system wakes from sleep.  I have done the perquisite resets of SMC and NVRAM and have been working with Apple support to a very deep level.  To no avail.  There seems to be an issue where system does not respond as expected when there are multiple power sources.  Is there a way to disable the power flow from the LG Ultrafine 4k monitors?  I will just rely on the wall.  I have a 2017 15" MBPro with Radeon Pro 560.  I have tested on MacOS 10.12.5 and MacOS 10.13 Beta (17A291m). Thanks!
Please disregard. the issue that led to this odd question has been resolved with an recent LG firmware update.

I have two UltraFine 4K monitors connected to a 2016 MBPro. When the Mac went to sleep both displays went to sleep, but only one would wake.

This has been resolved by the latest firmware.

1.) InstaLL LG Screen Manager. LG site still showing old version.
2.) It will push the most recent version. v2.06.
3.) Upgrade your monitor to the latest firmware. (3.11, 3.4, 5226, 3.04, 0.2f)