Welcome to our peer-to-peer forums, where owners help owners. Need help now? Visit eSupport here.

English Community

ThinkPad NotebooksThinkPad: P and W Series Mobile Workstations
All Forum Topics
Options

33 Posts

06-22-2012

Wisconsin

34 Signins

237 Page Views

  • Posts: 33
  • Registered: ‎06-22-2012
  • Location: Wisconsin
  • Views: 237
  • Message 1 of 4

W520 Unknown device ACPI Embedded Device

2012-10-17, 22:48 PM

I have an unknown device on Location Microsoft ACPI-compliant embedded controller.  The hardware device id is

ACPI\LEN0068

*LEN0068

 

Thank you for your help.

 

  Pete

Reply
Answer
Options

6829 Posts

06-27-2008

United States of America

29130 Signins

1668678 Page Views

  • Posts: 6829
  • Registered: ‎06-27-2008
  • Location: United States of America
  • Views: 1668678

Re: W520 Unknown device ACPI Embedded Device

2012-10-17, 22:57 PM

'evening...

 

it should be the the ThinkPad PM device. please install the power management driver.

full matrix: http://support.lenovo.com/en_US/research/hints-or-tips/detail.page?&DocID=HT063273

pm driver: http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS014939

 

hth.


Community GuidelinesPrivate MessagingENDEESPTRUUACZ-SKTRMoto
Requests for individual support are not answered. If a post solves your issue, please mark it so.

I am not a Lenovo employee

Reply

Replies(3)
Answer
Options

6829 Posts

06-27-2008

United States of America

29130 Signins

1668678 Page Views

  • Posts: 6829
  • Registered: ‎06-27-2008
  • Location: United States of America
  • Views: 1668678
  • Message 2 of 4

Re: W520 Unknown device ACPI Embedded Device

2012-10-17, 22:57 PM

'evening...

 

it should be the the ThinkPad PM device. please install the power management driver.

full matrix: http://support.lenovo.com/en_US/research/hints-or-tips/detail.page?&DocID=HT063273

pm driver: http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS014939

 

hth.


Community GuidelinesPrivate MessagingENDEESPTRUUACZ-SKTRMoto
Requests for individual support are not answered. If a post solves your issue, please mark it so.

I am not a Lenovo employee

0 person found this solution to be helpful.

This helped me too

Reply
Options

1 Posts

10-23-2018

United States of America

1 Signins

43 Page Views

  • Posts: 1
  • Registered: ‎10-23-2018
  • Location: United States of America
  • Views: 43
  • Message 3 of 4

Re: W520 Unknown device ACPI Embedded Device

2018-10-23, 17:28 PM

EDIT: I wrote that I couldn't find the PM driver. I just found the driver on the W520 factory HDD. Installing it solved the problem, however the lack of online availability of the PM driver might be a problem for other people. If someone knows where to find it, it could be useful to reply to this post with the location. Thanks.

 

 

 

I'm having the same issue, but I found the provided links above to be dead.

 

In device manager, I have Unknown Device, Value: ACPE\LEN0068

 

I have reinstalled the latest Power Manager, but I can't find a specific driver download aside from the PM software.

 

Another thread, https://support.lenovo.com/us/en/downloads/ds029250, suggested installing the ACPI device driver. When I install this, it seems to do nothing.

 

I have a W520 running Windows 7, 64 bit.

 

Reply
Options

12961 Posts

06-06-2011

Russian Federation

17914 Signins

178345 Page Views

  • Posts: 12961
  • Registered: ‎06-06-2011
  • Location: Russian Federation
  • Views: 178345
  • Message 4 of 4

Re: W520 Unknown device ACPI Embedded Device

2018-10-23, 19:36 PM
Despite the necro-thread and Power Management Driver landing page on the support site missing, I'll post direct link to the driver, last version with win7 support for w520 I know about
https://download.lenovo.com/pccbbs/mobiles/n1mku61w.exe - package

https://download.lenovo.com/pccbbs/mobiles/n1mku61w.txt - readme



x220 • Gobi 2000 3g | hdd, msata ssd, wwan, wifi, gps -- unique config
ThinkPad 25 Special Anniversary Edition. #Retro. Signed by D.Hill
T470p | X1 Carbon Gen3 | Miix 2 10" | Yoga Tablet 2-1050F (Android) + BT Keyboard
ThinkPad Stack • 2.4/5 Wireless Router, HDD 1 TB, BT Speaker, Power Bank, Mobile Projector

Do it well, worse becomes itself

Communities:   English    Deutsche    Español    Portugues    Русскоязычное    Česká    Slovenská    Українська   Moto English

Reply
Forum Home

Community Guidelines

Please review our Guidelines before posting.

Learn More

Check out current deals!

Go Shop
X

Save

X

Delete

X

No, I don’t want to share ideas Yes, I agree to these terms