Interesting little situation here. There's a Lenovo L412 laptop with Windows 7 (sp1) and all the latest updates on it. EEPC 6.1 was pushed onto it, and when deployed to the user's desk with a docking station it will not boot to the pre-boot authentication. You get a BIOS splash screen with the pretty Lenovo logo and all, but nothing after that, on either the laptop or the monitor plugged into the docking station. Remove the laptop from the dock and it boots to the EEPC login screen just fine, and at that point you can plug it back into the dock.
Here's my theory/guess:
Since the Pre-Boot Authentication is essentially a veryscaled-down Linux (?) OS (~20 megs worth) I’m thinking that it doesn’t know how to deal with the docking station, I.E. there might be more advanced USB/PCIe features that are not being addressed (that would be fine with Windows) when plugged into the docking station.
I haven't tried this yet, but my plan is this:
If it comes up to Windows, my theory/guess is correct.
Anyone have any further ideas?
Turns out a BIOS update fixed this. Not sure why that would be the case (I.E. I'm not really sure why Lenovo would add/fix features in a firmware update that would allow the pre-boot to function correctly on a docking station), but that's what it was.