Article Number: 000125319
If you install Windows 7 or 10 onto a Latitude xx80 laptop with a Skylake processor, the touchpad may become inoperable due to the touchpad now being based upon the I2C protocol rather than the Legacy PS/2 protocol.
Once Windows 7 or 10 and the majority of drivers are installed, there will be no bangs in Device Manager but the touchpad will still be inoperative if the Intel Serial IO driver was not loaded. Download and install the Intel Serial IO driver for your operating system, which will provide the necessary virtual connection between the I2C bus and Windows.
Go to the Dell Support Website / Drivers & Downloads and search for the Intel Serial IO driver under the Chipset category to download the latest driver version of the file.
Before Intel Serial IO Driver installation:
No HID or mice devices are listed in Device Manager (Figure 1):
Figure 1: Latitude xx80 Device Manager before Intel Serial IO driver installation
The touchpad resides under the 9D61 I2C Host Controller (currently no devices are detected, Figure 2):
Figure 2: No touchpad detected
After Intel Serial IO Driver installation:
HID and Mice devices are listed (Figure 3):
Figure 3: Latitude xx80 Device Manager after Intel Serial IO driver installation
The touchpad is detected under the 9D61 I2C Host Controller (Figure 4):
Figure 4: Touchpad showing under 9D61 I2C Host Controller
Latitude 5280/5288, Latitude 7280, Latitude 13 3380, Dell Latitude 3480/3488, Latitude 5480/5488, Latitude 7480, Dell Latitude 3580/3588, Latitude 5580
27 Jul 2024
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Solution