BLACK SCREEN when XPE start with USB device

[Rene]

Hi,

I am building an embedded image (sp2) for a headless system with USB
mass storage

Now i have a problem with the USB devices

PCI\VEN_1039&DEV_7001&SUBSYS_70001039&REV_07\3&267A616A&0&0B: SiS 7001
PCI to USB Open Host Controller
PCI\VEN_1039&DEV_7001&SUBSYS_70011039&REV_07\3&267A616A&0&0A: SiS 7001
PCI to USB Open Host Controller
USB\ROOT_HUB\4&168EEF65&0 : USB Root
Hub
USB\ROOT_HUB\4&26BCD6CA&0 : USB Root
Hub

If i connect the USB-device (keyboard or mass storage) during the
running system everything is ok.

If i connect the USB device during the boot process, the splash screen
starts but after that i get a black
screen, and the system is dead.

What i tried until now:

- disable the EWF, same effect
- tests with different USB-Devices, same effect
- disable the device in the registry
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\usbohci\Start=4
system started properly, but i did not found a way to start the
device with devcon.exe
- bypass with devcon.exe, no idee how can i do that

I required urgent help and I hope somebody is willing to answer all my
questions!

Thanks,
Rene

 

[Slobodan Brcin \(eMVP\)]

Rene,

I have never seen behavior that you describe.

You said black screen. And it is completely blank?

Since it is SP2 I have no idea from where to start, but to be sure you can
remove EWF from your project, simply disabling EWF is not enough, unless you
change start value in Services for whole driver.

Regards,
Slobodan