Comment 5 for bug 1841826

A few things that may help with this, these were noted under bug 1897185. In looking at logs when this occurred (observed on ThinkPads including T440s, T570, T480 all docked and running lid-down with external display, keyboard, etc); this behavior occurred when:
-using a third-party nVidia driver for discrete graphics card; or
-when a Logitech USB dongle for a Logitech wireless mouse was plugged in to the dock and the mouse turned on during power up; or
-when the Dropbox app was installed and automatically loaded during startup.
The behavior could be avoided by:
-using the Ubuntu xorg driver for the discrete graphics card;
-turning off the Logitech mouse during startup;
-turning off Dropbox synching and closing that app prior to shutdown so that it would not load automatically at startup.
Sharing this in hopes that it may help with debugging, and to make reproducing the issue easier?
Thanks.