Toshiba P870 + Toshiba Dynadock U3.0 == black screen

[derek]

Hi,

I have just purchased a Toshiba Dynadock 3.0 and I have plugged that into my Toshiba P870 (already in windows 8.1). With all the excitement, I am getting black screens. The monitor indicates there is signal as it is on, and I can move my mouse into the screen but it is just like black hole..

I have followed the steps to uninstall, cleanup, plug in the dock first then plug in the monitor etc., none of them works!!!!

I have also tested the dock with my wife's laptop which is running on windows 7, everything is working fine, so it must be the problem around windows 8 or the drivers in windows 8.

Toshiba P870 has two graphic cards, Intel graphic 4000 and nvidia, I got the impression that nvidia will only kick in when there is 3D need. And I am not sure whether there is any limitation on the number of displays Intel graphic card can support.

very very frustrated!


What shall I do? any advice is appreciated! thanks!

please also find the attached log files.