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ACPI complaint virtual power controller seems as unknown device under “Device Manager”

SYMPTOM:

OS works properly but under "Device Manager" ACPI is not recognized by OS

AFFECTED CONFIGURATION:

The above symptom may occur on the following systems:

All Idea Laptop

SOLUTION:

1. Go to http://support.lenovo.com , click "Drivers and Downloads" and select your product

2. Download the Power Management Driver (Lenovo Energy Management)

3. Install the exe file to your laptop .

4. Restart the computer.

5. It will take effect after restarting the computer

TRADEMARKS:

Lenovo, Lenovo 3000, IdeaCenter and IdeaPad are trademarks of the Lenovo Corporation in the United States, other countries, or both.

Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other countries, or both.

Other company, product, or service names may be trademarks or service marks of others.

Document ID:

IN20100621-008

Last modified:

2010-09-03



If you are unable to find what you are looking for, please do try the following options:
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3. Lenovo Support Forum
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Alias ID : IN20100621-008
Document ID : HT071784
Legacy Document ID : 12771167781673
Last Updated :
Copyright © Lenovo 2013, all rights reserved
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