Microsoft KB Archive/929685

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

Article ID: 929685

Article Last Modified on 6/26/2007

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APPLIES TO


 * Windows Vista Enterprise 64-bit Edition
 * Windows Vista Home Basic 64-bit Edition
 * Windows Vista Home Premium 64-bit Edition
 * Windows Vista Ultimate 64-bit Edition
 * Windows Vista Business
 * Windows Vista Business 64-bit Edition
 * Windows Vista Enterprise
 * Windows Vista Home Basic
 * Windows Vista Home Premium
 * Windows Vista Starter
 * Windows Vista Ultimate

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SYMPTOMS
After you resume a Windows Vista-based computer from sleep or from hibernation, a high definition audio (HDA) device may no longer work. The device may be a sound device or a modem. You may see an &quot;X&quot; 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.



RESOLUTION
To resolve these problems, install the update that is described in Microsoft Knowledge Base article 937077. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

937077 A high definition audio device may no longer work after you resume Windows Vista from hibernation or from sleep



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

Additional query words: audio codec and MDC Systray system tray Status area

Keywords: kbfix atdownload kbqfe kbprb kbexpertisebeginner KB929685

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