Consider the following scenario:

• A Windows Vista-based computer is awakened from sleep by a magic packet.
• The WakeOnLAN feature is enabled on the computer.

In this scenario, the computer desktop is displayed unexpectedly.

Note: For more information about magic packets, see the “More information” section.

Consider the following scenario:

• You watch live TV or a DVD in Windows Media Center on a Windows Vista Home Premium-based computer or on a Windows Vista Ultimate-based computer.
• You pause the live TV program or the DVD.
• You use the Start menu, a sleep button on the keyboard, or a Windows Media Center remote control to put the computer to sleep.
• You wake the computer, and then you try to continue watching the live TV program or the DVD.

In this scenario, you can view the video part of the live TV program or of the DVD. However, you cannot hear the accompanying audio.

When you put a Windows Vista-based computer to sleep or into hibernation, or when you resume the computer from sleep or from hibernation, you receive a Stop error message that resembles the following:

*** STOP: 0×0000009F (parameter1, parameter2, parameter3, parameter4)
DRIVER_POWER_STATE_FAILURE

You may occasionally experience the following symptoms when you wake a Windows Vista-based computer from sleep:

• A Bluetooth device no longer works correctly.
• When you view the Bluetooth device in Device Manager, an exclamation mark in a yellow circle is displayed for the device. When you view the properties of the device, the status for the device reports Code 43. This status code indicates that Windows has stopped the device because the device has reported problems.

This problem occurs on a system in which a Bluetooth device is connected through a universal serial bus (USB) connection.

Note: Certain USB devices may be integrated into the system, and they may be connected to an internal hub. For example, a portable computer may have a single USB bus. In this situation, the computer may use an internal USB hub to provide two or more available USB ports on the computer.

Consider the following scenario:

• You are running a Windows Vista-based computer.
• The computer has a universal serial bus (USB) keyboard connected to it.
• You resume the computer from sleep or from hibernation.

In this scenario, the LED lights that represent the NUM LOCK key, the CAPS LOCK key, and the SCROLL LOCK key on the USB keyboard do not resume their previous status. These lights remain turned off regardless of the status of the NUM LOCK key, the CAPS LOCK key, and the SCROLL LOCK key.

A high definition audio (HDA) device may no longer work after you resume a Windows Vista-based computer from hibernation or from sleep. The HDA device may be a sound device or a modem. You may see an “X” character appear on the speaker icon in the notification area.

Because of this problem, you no longer hear any sound. Or, you cannot use the modem. This problem occurs even though you have installed the update that is described in Microsoft Knowledge Base article 929685. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

929685 A high definition audio device may no longer work after you resume Windows Vista from hibernation or from sleep

When you wake a Windows Vista-based computer from sleep, you may receive a Stop error message that resembles the following:

*** STOP: 0×000000B8 (parameter1, parameter2, parameter3, parameter4)
ATTEMPTED_SWITCH_FROM_DPC

This problem occurs if you have installed the update that is described in the following Microsoft Knowledge Base article:

929762 (support.microsoft.com/kb/929762/) You receive a Stop 0×9F error when you wake a Windows Vista-based computer that is connected to an IEEE 1394-based device

Note: Update 929762 is available as a critical update from the following Microsoft Web site:

Consider the following scenario. You use the Mastered file system format to copy files to a CD or to a DVD on a Windows Vista-based computer. You click Burn to disc on the toolbar to burn the files to the disc. Before the computer finishes burning the files to the disc, you put the computer to sleep. In this scenario, the disk creation does not finish after you wake the computer from sleep. You receive an error message that resembles the following:

There was an error burning this disc. The disc may no longer be usable.

The information in this article applies to the following configuration(s):

• Catalyst Control Center
• Radeonâ„¢ X1950 series
• Radeonâ„¢ X1900 series
• Radeonâ„¢ X1800 series
• Radeonâ„¢ X1650 series
• Radeonâ„¢ X1600 series
• Radeonâ„¢ X1550 series
• Radeonâ„¢ X1300 series
• Radeonâ„¢ X1050 series
• Radeonâ„¢ X850 series
• Radeonâ„¢ X800 series
• Radeonâ„¢ X700 series
• Radeonâ„¢ X600 series
• Radeonâ„¢ X550 series
• Radeonâ„¢ X300 series
• Radeonâ„¢ 9800 series
• Radeonâ„¢ 9700 series
• Radeonâ„¢ 9650 series
• Radeonâ„¢ 9600 series
• Radeonâ„¢ 9550 series
• Radeonâ„¢ 9500 series
• Windows Vista 64-bit Edition

Symptoms:

On a dual display configured system, after returning from sleep mode, the secondary display may not be enabled.

After you wake a Windows Vista-based computer from sleep or from hibernation, you experience the following symptoms:

• The network icon in the notification area at the far right of the taskbar is not updated to show the connectivity status of the computer.
• If you connect a network cable to the computer or if you connect to a wireless network, the network icon in the notification area incorrectly shows the connectivity status as disconnected.
• If you move the pointer over the network icon in the notification area, the Currently connected to ScreenTip does not appear as expected.
• If you click the network icon in the notification area, the Currently connected to ScreenTip does not appear as expected.

Note: In this case, the expected ScreenTip should contain a Connect to a network link and a Network and Sharing Center link.
You experience these symptoms even though you can successfully connect both to wired networks and to wireless networks.