Skip to main content
Sign Out

Welcome to Dell

My Account
  • Place orders quickly and easily
  • View orders and track your shipping status
  • Enjoy members-only rewards and discounts
  • Create and access a list of your products
Sign In Create an Account Premier Sign In Dell Financial Services Partner Program Sign In
Contact Us

Your Dell.com Carts

Touchpad Not Working on Latitude xx80 with Skylake Processors on Windows 10

Summary: This article explains how to resolve an inoperable touchpad issue on Latitude xx80 laptops with Windows 10 and Skylake processors.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
Check out other resources

Symptoms

If you install Windows 10 onto a Latitude xx80 laptop with a Skylake processor, the touchpad may become inoperable due to the touchpad now being based on the I2C protocol rather than the Legacy PS/2 protocol.

Note: Versions of Windows 10 PE 32-bit cannot recognize I2C touchpads. The Serial IO Device that leads to the I2C bus is PCI\VEN_8086&DEV_9D61 which is run by iaLPSS2i_I2C_SKL.inf. This file is not present in the Windows 10 PE 32-bit, but is present in Windows 10 PE 64-bit.

Cause

No cause information.

Resolution

Once Windows 10 and most drivers are installed, there are no bangs in Device Manager but the touchpad is still inoperative if the Intel Serial IO driver was not loaded. Download and install the Intel Serial IO driver for your operating system, which provides the necessary virtual connection between the I2C bus and Windows.

Go to the Dell Drivers & Downloads and search for the Intel Serial IO driver under the Chipset category to download the latest driver version of the file.

Note: You must also install the Dell Touchpad Drivers, which can be found by following the steps above and choosing the Mouse, Keyboard & Input Devices category from the available driver menu, then downloading and installing the latest Dell Touchpad Drivers that appears under this category.

Before Intel Serial IO Driver installation:

No HID or mouse devices are listed in Device Manager:

Latitude xx80 Device Manager pre-Intel Serial IO

The touchpad resides under the 9D61 I2C Host Controller (currently no devices are detected as shown in the image below):

No HID devices detected

After Intel Serial IO Driver installation:

HID and Mice devices are listed:

Latitude xx80 Device Manager after Intel Serial IO

The touchpad is detected under the 9D61 I2C Host Controller:

Touchpad showing under 9D61 I2C Host Controller

Affected Products

Latitude 5280/5288, Latitude 7280, Latitude 13 3380, Dell Latitude 3480/3488, Latitude 5480/5488, Latitude 7480, Dell Latitude 3580/3588, Latitude 5580
Article Properties
Article Number: 000125319
Article Type: Solution
Last Modified: 31 Jul 2024
Version:  6
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.