Lenovo ThinkPad L420

From OS2World.Com Wiki
Jump to navigation Jump to search

General Specs

  • Model Number: 7856-3WS
  • Processor:Intel Core i5-2410M
  • Memory:4GB RAM
  • HDD:
  • Graphics:Intel HD Graphics 3000
  • Chipset: Intel HM65 (Cougar Point) [B3]


Component Name HardwareID Status Driver
Processor Intel Core i5-2410M -- Check.gif ACPI
Storage / SATA Intel 6 Series/C200 Series Chipset Family 6 port Mobile SATA AHCI Controller 8086:1C03 Check.gif OS2AHCI
Audio Intel 6 Series/C200 Series Chipset Family High Definition Audio Controller 8086:1C20 Check.gif UNIAUD
Video Intel 2nd Generation Core Processor Family Integrated Graphics Controller 8086:0116 Check.gif Panorama
USB Intel 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 8086:0106 Check.gif ArcaOS's USB and Lars' USB.
USB Intel 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 8086:1C2D Check.gif ArcaOS's USB and Lars' USB.
Network RealTek Semiconductor RTL8168D/8111D PCI-E Gigabit Ethernet Adapter 10EC:8168 Check.gif Multimac R8169.OS2
Wireless Network Intel Centrino Advanced-N 6205 [Taylor Peak] 8086:0085 Nope.gif
Express Card Realtek RTS5209 PCI Express Card Reader 10EC:5209 Vraag.gif Not tested
Wireless Bluetooth / USB Broadcom BCM2045B (BDC-2.1) Broadcom Bluetooth Device 0A5C:217F Nopebl.gif Not Supported
FingerPrint Reader / USB UPEK Biometric Touchchip/Touchstrip Fingerprint Sensor 147E:1002 Nopebl.gif Not Supported
WebCam / USB Chicony - Cheng Uei (Foxlink) Integrated Camera 05C8:0317 Check.gif WebSee

General Comments

Installation Procedure

Install eComStation 2.1 or ArcaOS 5.0.3 on this machine requires using an USB external mouse.

eComStation 2.1
Boot with custom setting from the CD-ROM and enable the AHCI driver. From that you can follow the installation procedure normally.
ArcaOS 5.0.3
The Boot default settings from the USB Flash drive will work to install the OS.


Trackpoint/Trackpad do not work on the Installation Procedure

No matter if you use AMouse of Single Mouse driver you will have this issue on eComStation 2.1 or ArcaOS 5.0.3.

Workaround: Use external USB mouse. Issue: [1]

Keyboard stops working

Sometimes the keyboard of the thinkpad stops working. This seems to be because of the other ACPI driver (version 3.22.03).

Workaround: Have an external USB keyboard just in case.

Device Specific Comments


The latest ACPI drivers (version 3.22.03 and 3.22.08) seems to work fine with this. It recognizes four cores on boot.


The "/NOACPI" parameter was used on ACPI.PSD for the power button to work and shut down and for the brightness buttons to work. [2]


If you are using Panorama driver, it is a good idea to update to version 1.11 (from Arca Noae). It will allow you to select the 1366x768 video resolution.

Wired Network

The RealTek Semiconductor RTL8168D/8111D PCI-E Gigabit Ethernet Adapter for recognized with the R8110.OS2 network driver when it installed. But it did not work, it loads but it not works to connect to the network. So I used Multimac R8169.OS2 and it started to work.



The trackpoint and trackpad of this device is producing an strange behaviour. At first it did not work at all during the installation procedure, so an external USB mouse was required.

After updating ACPI to version to version 3.22.03, it starts working but sometimes it gives an strange behaviour and ever movement of the mouse or mouse click (both trackpoint and trackpad) opens the "Windows List". The final word is that sometimes it works and sometimes not.


I used AMOUSE.SYS from the installation.


The version I currently have installed is:

Signature:       @#NB:2.75.00#@ Driver for Scroll Mouse (c) 2006
Vendor:          NB
Revision:        2.75.00
File Version:    2.75
Description:     Driver for Scroll Mouse (c) 2006

I also get this message from time to time which is very odd because the trackpoint do not have battery:



I changed from AMOUSE.SYS to MOUSE.SYS to see if I got a different result.

Signature:       @#IBM:10.163#@  OS/2 Mouse Device Driver
Vendor:          IBM
Revision:        10.163
File Version:    10.163
Description:     OS/2 Mouse Device Driver

MOUSE.SYS was worst. The trackpoing/Trackpad did not show any activity at all, and the USB Mouse worked to move the pointer, but clicking of the buttons stopped working.


The Thinkpad keyboard also shows some strange behaviour. Sometimes it works, sometimes it loose connection. The only workaround is to have an USB keyboard around just in case.

When the Thinkpad Keyboard stops working, you connect an USB keyboard and both starts working, after that you can disconnect the USB keyboard. But this happens a very few times, it is not very common.




Signature:       @#D Azarewicz:10.165#@##1## 19 Jun 2013 11:35:54     DAZAR1
::::::@@IBM Keyboard Device Driver
Vendor:          D Azarewicz
Revision:        10.165
Date/Time:       19 Jun 2013 11:35:54
Build Machine:   DAZAR1
File Version:    10.165
Description:     IBM Keyboard Device Driver

This driver is the patched one from David Azarewicz with the ACPI driver.


The USB drivers that came with eComStation 2.1 and ArcaOS 5.0.6 works fine.

The config.sys looks like this:



The Webcam is working with "Webcam Server for OS/2" from Wim Brul.

USBECD is no longer needed, it works with the USBRESMG.SYS driver included in the USB drivers.

To run the webcam server execute:

webcam /n

To see the output run:

wmvideo /n

It will show you a window with your webcam image on it.

Hardware Reports

Hardware Manager Screenshots

HW-Manager 01.png

HW-Manager 02.png