Consider the following scenario:

• You run Windows Vista or Windows Server 2008 on a portable computer that has multiple hybrid graphics processing units (GPUs).
• A GPU mode transition occurs. This usually occurs when you unplug the AC power cord and the computer switches to power saving mode.
• You try to put the computer to sleep or into hibernation.

In this scenario, the computer crashes.

Consider the following scenario. You have a portable computer that runs Windows Vista or Windows Server 2008. You put the computer to sleep (S3) while the computer’s lid is open. Then, you close the lid while the computer is asleep. Later, you open the lid to wake up the computer.

In this scenario, the computer starts resuming. However, you only see a blank screen and a mouse pointer until you provide some user input. For example, this situation lasts until you press a key or click the mouse.

Note: This problem occurs only on certain computers.

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 0×0000007E (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.

Consider the following scenario:

• You connect an external monitor to a portable computer that is running Windows Vista.
• You disable the portable computer’s built-in display.
• The portable computer turns off the external monitor because of the lack of user activity.
• You disconnect the external monitor, and then you resume the portable computer.
• The portable computer’s built-in display turns on.
• You reconnect the external monitor.

In this scenario, the external monitor displays a black screen.

Considering the following scenario:

• You have a Windows Vista-based or Windows Server 2008-based portable computer that is connected to an external monitor.
• You set the external monitor as the main monitor.
• The external monitor has a screen resolution that differs from the portable computer’s built-in monitor.
• You put the portable computer into sleep or in hibernation.
• You remove the external monitor.

In this scenario, when you wake the portable computer, the logon screen is not resized correctly. For example, the logon window may be smaller or larger than the screen on the portable computer.

On a portable computer that is running an Italian version of Windows Vista, you configure the Power Options settings in Control Panel. However, the Alimentazione da rete elettrica (minuti) box is not completely visible. Therefore, you cannot configure the number of minutes that the computer should wait before it sleeps while the computer is plugged in.

Consider the following scenario. You have a portable computer that is running Windows Vista. While you are using Windows Media Center on this computer, the computer’s battery power runs low. In this scenario, you receive the following warning message:

Plug in your computer to keep from losing your work, or put your computer to sleep so that you can change the battery

However, this warning message is incorrect. You must not change the battery while the computer is asleep (on standby).

When you connect a portable device to a Windows Vista based computer, and then you upgrade Windows Vista to Windows Vista Service Pack 1 (SP1), you experience the following symptoms:

• A dialog box appears that indicates that the Windows Vista SP1 update has finished. Another dialog box appears that indicates that the device driver software must be installed. An option to install the software is presented.
• If you select the installation option, the drivers are installed incorrectly. In addition, you receive an error message that resembles to the following:
  

  Device not started (code 10): Device has problem: 0×0a: CM_PROB_FAILED_START

• If you disconnect and then reconnect the device, this issue is not resolved. If you restart the system with the device disconnected, and then you reconnect the device when the computer restarts, this issue is also not resolved.

When you start a multiprocessor portable computer that runs Windows Vista, you may receive the following Stop error message:

STOP: 0×0000007E (parameter1, parameter2, parameter3, parameter4)
NETIO.SYS

This problem typically occurs after a driver for a third-party network adapter is installed.

Notes:

• The parameters in this Stop error message vary, depending on the configuration of the computer.
• Not all “0×0000007E” Stop error messages are caused by this problem.

Consider the following scenario. When your computer’s battery reaches low or critical levels, you only receive a pop-up balloon notification, and do not hear a sound file play.

You right-click on your desktop and click Personalize, then choose Sounds. You observe that “Low Battery Alarm” and/or “Critical Battery Alarm” are configured to play a sound file.