@ nitrocaster: thanks!nitrocaster wrote: ↑Wed Oct 25, 2017 6:30 pm@cherryblue:
If Windows constantly looses recognition of FHD display when your machine is not installed in the dock, then you have at least one of these issues:
1] Bad soldering between the adapter board and the motherboard - put new flux, apply more heat (don't poke or push plated holes, just touch and make sure the solder flows inside)
2] Bad FHD display (the only way to troubleshoot this is to test with another display)
3] Bad eDP cable (same as 2, need to get a known good replacement to test with)
4] Bad motherboard (did it work with external monitor on dock DP#2 before?)
It was a faulty FHD panel. I received a LP125WF2-SPB3 panel and modded a second thinkpad. This mod worked instantly. By exchanging components I could verify that my B125HAN02.0 panel is misbehaving.
Taping those pins of both of my "UltraBase Series 3" docking stations is required nevertheless.