Touchpad suddenly stopped working on my Acer Swift SF14-51

Hi everyone,

I’m having issue with my touchpad suddenly stopped working on my Acer Swift SF14-51. The only difference is that it was working fine before and stopped all of a sudden.

Here’s what I’ve tried so far:

Installed Intel Serial I/O Driver from Acer support.
Uninstalled all touchpad / HID-compliant touchpad drivers and let Windows reinstall them.
Checked BIOS / UEFI: no touchpad-related settings available.
Verified Device Manager shows the device as ACPI\VEN_PIXA&DEV_3838, using generic input.inf driver.
Checked Windows Update and Optional Updates for driver updates.
Restarted the laptop multiple times.

Despite all this, the touchpad remains unresponsive, and Event Viewer logs a Kernel-PnP 410 event.

Has anyone managed to fix this issue, or know where to get a compatible PixArt I2C HID touchpad driver for this model? Any guidance would be greatly appreciated.

Thank you!

Accepted answers

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GAMING6698

Did you try running system restore point? Try that. It can be due to update and retire will help.

firedragon

Thank you for your reply. I really appreciate it.

The first time, I scanned for changes, which solved the issue. This is the second time.

I haven’t tried using a system restore point yet, but I have done the following, which solved the issue. However, I’m not sure if it will solve the issue permanently.

ACPI & Power Reset

This is the most common and effective solution for this specific problem. It clears any corrupted state from the motherboard's controller and the battery's power management.

Shut down my laptop completely (not restart).
Disconnect the AC adapter charger.
Disconnect any and all peripherals (USB devices, monitors, etc.).
Hold down the power button for 60 seconds (a full minute). This will discharge any residual power and reset the EC (Embedded Controller).
After 60 seconds, release the power button.
Reconnect the AC adapter.
Turn on the laptop normally.