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ITsVISTA KB-Link: KB958865

A Windows Vista or Windows Server 2008 portable computer does not automatically re-enter sleep mode after you undock the computer when it is asleep

Consider the following scenario:

  • You run Windows Vista or Windows Server 2008 on a portable computer that is equipped with a docking station.
  • The portable computer is docked, and a USB mouse is plugged into the docking station.
  • You put the computer to sleep, and then you undock the computer.

In this scenario, the computer is not undocked correctly.

When you undock the computer while it is asleep, the computer should resume and then automatically re-enter sleep mode. The computer resumes as expected, but does not automatically re-enter sleep mode. Eventually, the LCD screen turns blank. Sometimes, you receive the following Stop error message:

Stop 0x0000007E (c0000005, parameter2, parameter3, parameter4)
SYSTEM_THREAD_EXCEPTION_NOT_HANDLED

Notes:

  • The parameters in the Stop error message may vary.
  • This problem does not occur when both a USB mouse and a USB keyboard are plugged into the docking station.
There is a download that resolves this issue. See Hotfixes for details.
32-bit Download: Contact Microsoft
64-Bit Download: Contact Microsoft

For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB958865.

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