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Windows 7: Unknown driver, ACPI, & VPC

15 Apr 2009   #1
urbanra5cal

Windows 7 x64 build 7068
 
 
Unknown driver, ACPI, & VPC

Someone please comment on these screenshots. They're all from the same branch in device manager


I've installed the latest chipset drivers from Intel, and all compatible lenovo drivers as well.




Attached Images
Unknown driver, ACPI, & VPC-capture.png Unknown driver, ACPI, & VPC-capture2.png Unknown driver, ACPI, & VPC-capture3.png 
My System SpecsSystem Spec
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15 Apr 2009   #2
jfar

Vista Ult64, Win7600
 
 

Uninstall the device and reinstall it, and see if it finds any drivers for the device.
My System SpecsSystem Spec
15 Apr 2009   #3
urbanra5cal

Windows 7 x64 build 7068
 
 

I've done that a couple of times and the yellow alert comes back. I've also tried disabling it which changes nothing.
My System SpecsSystem Spec
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15 Apr 2009   #4
jfar

Vista Ult64, Win7600
 
 

Try search /update for new driver, and when you get the window to search ,pick your C drive or whatever drive you have the OS on.
My System SpecsSystem Spec
15 Apr 2009   #5
baarod

El Capitan / Windows 10
 
 

Lenovo doesn't make a 64-bit ACPI driver for your machine. Put 32-bit on or you're likely to end up with battery life in the range of minutes rather than hours.

Some users report using driver(s) from another model works:

http://consumersupport.lenovo.com/en..._show_627.html
http://consumersupport.lenovo.com/en..._show_640.html

Remember that you may need to install these in Vista compatibility mode.

Make sure to rep me (click scales icon in upper right corner of this post) if this works!
My System SpecsSystem Spec
15 Apr 2009   #6
urbanra5cal

Windows 7 x64 build 7068
 
 

Thanks, baarod. Your 2nd link did me some magic.
My System SpecsSystem Spec
15 Apr 2009   #7
baarod

El Capitan / Windows 10
 
 

Quote   Quote: Originally Posted by urbanra5cal View Post
Thanks, baarod. Your 2nd link did me some magic.
YAY! Happy to help, it's why I show up around here.
My System SpecsSystem Spec
27 May 2009   #8
tangcla

Windows7 7229 x64
 
 

interesting... I'll have to try this on the Lenovo SL400 I have at home
My System SpecsSystem Spec
Reply

 Unknown driver, ACPI, & VPC




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