HD audio controller is consuming power during sleep or hibernation in Windows Vista

This article has been archived. It is offered "as is" and will no longer be updated.
A hotfix is available for Windows Vista that addresses excessive power use during sleep or hibernation. This problem presents the following symptoms.

Symptom 1

If you put the computer to sleep or into hibernation when it is running on AC power, the high definition (HD) audio controller continues to use power. Additionally, even after the computer transitions to DC power while the computer is asleep or in hibernation, the HD audio controller still uses power. This behavior persists even though you disable the "Allow this device to wake the computer" option in the HD audio controller properties.

Symptom 2

After you disable the "Allow this device to wake the computer" option in the HD audio controller properties, the Wake on Ring feature still wakes the computer from sleep or hibernation.

Even after you apply hotfix 949514 on the computer, you still experience this problem.

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


To apply this hotfix, you must have Windows Vista Service Pack 1 or Windows Vista Service Pack 2 installed on the computer. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista service pack

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix replaces hotfix 949514.

File information

The Global version of this hotfix has the file attributes (or later file attributes) that are listed in the following table.

Windows Vista and Windows Server 2008 file information notes

  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.
    VersionProductSR_LevelService branch
    6.0.6000.16xxxWindows VistaRTMGDR
    6.0.6000.20xxxWindows VistaRTMLDR
    6.0.6001.18xxxWindows Vista and Windows Server 2008SP1GDR
    6.0.6001.22xxxWindows Vista and Windows Server 2008SP1LDR
    6.0.6002.18xxxWindows Vista and Windows Server 2008SP2GDR
    6.0.6002.22xxxWindows Vista and Windows Server 2008SP2LDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) installed for each environment are listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.
The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
For all supported x86-based versions of Windows Server 2008 and Windows Vista
File nameFile versionFile sizeDateTimePlatform
Hdaudbus.infNot Applicable5,28429-Apr-200909:05Not Applicable
Hdaudbus.infNot Applicable5,28429-Apr-200909:01Not Applicable
For all supported x64-based versions of Windows Server 2008 and Windows Vista
File nameFile versionFile sizeDateTimePlatform
Hdaudbus.infNot Applicable5,29229-Apr-200909:06Not Applicable
Hdaudbus.infNot Applicable5,29229-Apr-200909:01Not Applicable
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information for Windows Vista

Additional files for all supported x86-based versions of Windows Vista

File nameFile versionFile sizeDateTimePlatform
Package_for_kb970030_client_1~31bf3856ad364e35~x86~~ Applicable1,36730-Apr-200907:11Not Applicable
Package_for_kb970030_client_2~31bf3856ad364e35~x86~~ Applicable1,69430-Apr-200907:11Not Applicable
Package_for_kb970030_client~31bf3856ad364e35~x86~~ Applicable1,71330-Apr-200907:11Not Applicable
Package_for_kb970030_sc_0~31bf3856ad364e35~x86~~ Applicable1,42130-Apr-200907:11Not Applicable
Package_for_kb970030_sc_1~31bf3856ad364e35~x86~~ Applicable1,69030-Apr-200907:11Not Applicable
Package_for_kb970030_sc~31bf3856ad364e35~x86~~ Applicable1,70130-Apr-200907:11Not Applicable
Package_for_kb970030_server_0~31bf3856ad364e35~x86~~ Applicable1,42530-Apr-200907:11Not Applicable
Package_for_kb970030_server_1~31bf3856ad364e35~x86~~ Applicable1,69430-Apr-200907:11Not Applicable
Package_for_kb970030_server~31bf3856ad364e35~x86~~ Applicable1,71330-Apr-200907:11Not Applicable
Package_for_kb970030_winpesrv_0~31bf3856ad364e35~x86~~ Applicable1,42230-Apr-200907:11Not Applicable
Package_for_kb970030_winpesrv~31bf3856ad364e35~x86~~ Applicable1,43030-Apr-200907:11Not Applicable
X86_hdaudbus.inf_31bf3856ad364e35_6.0.6001.22422_none_7797961a9fb322b8.manifestNot Applicable1,88130-Apr-200907:16Not Applicable
X86_hdaudbus.inf_31bf3856ad364e35_6.0.6002.22125_none_798108e09cd6c3e1.manifestNot Applicable1,88130-Apr-200907:16Not Applicable

Additional files for all supported x64-based versions of Windows Vista

File nameFile versionFile sizeDateTimePlatform
Amd64_hdaudbus.inf_31bf3856ad364e35_6.0.6001.22422_none_d3b6319e581093ee.manifestNot Applicable1,88330-Apr-200907:11Not Applicable
Amd64_hdaudbus.inf_31bf3856ad364e35_6.0.6002.22125_none_d59fa46455343517.manifestNot Applicable1,88330-Apr-200907:11Not Applicable
Package_for_kb970030_client_1~31bf3856ad364e35~amd64~~ Applicable1,37530-Apr-200907:11Not Applicable
Package_for_kb970030_client_2~31bf3856ad364e35~amd64~~ Applicable1,70630-Apr-200907:11Not Applicable
Package_for_kb970030_client~31bf3856ad364e35~amd64~~ Applicable1,72330-Apr-200907:11Not Applicable
Package_for_kb970030_sc_0~31bf3856ad364e35~amd64~~ Applicable1,42930-Apr-200907:11Not Applicable
Package_for_kb970030_sc_1~31bf3856ad364e35~amd64~~ Applicable1,70230-Apr-200907:11Not Applicable
Package_for_kb970030_sc~31bf3856ad364e35~amd64~~ Applicable1,71130-Apr-200907:11Not Applicable
Package_for_kb970030_server_0~31bf3856ad364e35~amd64~~ Applicable1,43330-Apr-200907:11Not Applicable
Package_for_kb970030_server_1~31bf3856ad364e35~amd64~~ Applicable1,70630-Apr-200907:11Not Applicable
Package_for_kb970030_server~31bf3856ad364e35~amd64~~ Applicable1,72330-Apr-200907:11Not Applicable
Package_for_kb970030_winpesrv_0~31bf3856ad364e35~amd64~~ Applicable1,43030-Apr-200907:11Not Applicable
Package_for_kb970030_winpesrv~31bf3856ad364e35~amd64~~ Applicable1,43830-Apr-200907:11Not Applicable
HD Audio, S4, hibernate, hibernation, battery, drain

Article ID: 970030 - Last Review: 01/16/2015 11:11:08 - Revision: 2.0

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

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