Computer Does Not Resume After Warm Undock with USB Controller in Docking Station

• Microsoft Windows 98 Second Edition

SYMPTOMS

If you dock your laptop computer in a docking station that contains a Universal Serial Bus (USB) controller and the computer is suspended (put into Standby mode), when you undock the laptop and attempt to resume operation, one of the following symptoms may occur:

• The computer may stop responding (hang) at a black screen, and a hard reset or power off and power on may be required.



• The computer may spontaneously restart.

CAUSE

This behavior can occur for the following reasons:

• If the USB controller in the dock is an OpenHCI type controller (made by a manufacturer other than Intel) and other PCI devices are sharing the same Interrupt Request (IRQ) number. When the OpenHCI controller hardware is no longer present, the OpenHCI controller driver (Openhci.sys) may hang while processing an interrupt during resume.



• When the USB hub driver (Usbhub.sys) attempts to determine the status of the USB hub during resume when the USB hub hardware is no longer present, the Openhci.sys driver does not correctly detect this condition and the USB hub driver becomes stuck in an endless loop.

RESOLUTION

A supported fix that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp

   Date       Time      Version     Size     File name     Platform
   ----------------------------------------------------------------
   08/10/99   11:27am   4.10.2223   23,792   Openhci.sys   Win98SE 

WORKAROUND

As a troubleshooting step or temporary workaround, you can prevent this problem from occurring by disabling the USB controller in the docking station before suspending the computer. You may need to restart the computer for this change to take effect.

STATUS

Microsoft has confirmed this to be a problem in Windows 98 Second Edition.

MORE INFORMATION

This condition is only known to occur if the computer is suspended in a docked state and then resumed in an undocked state. This behavior is not known to occur if the computer is:

• Suspended in a docked state and resumed in a docked state.



• Suspended in an undocked state and resumed in an undocked state.



• Suspended in an undocked state and resumed in a docked state.

Additional query words:

Keywords : win98se
Version : WINDOWS:
Platform : WINDOWS
Issue type : kbbug