Acpi 80860f14 !!top!! May 2026

ACPI Hardware ID 80860F14: A Case Study in Intel SoC Power Management

Abstract
The ACPI Plug and Play Hardware ID 80860F14 corresponds to a proprietary Intel device found primarily on Bay Trail and Cherry Trail system-on-chips (SoCs). This paper examines the device's identification, its role in power management and I2C controller operation, and the challenges it presents for open-source operating systems.

Symptom 3: Missing Sound Cards

Even if the main HDA Intel driver loads (for HDMI audio), the internal speakers and headphone jack remain silent. aplay -l or cat /proc/asound/cards will show only HDMI or no card at all. Acpi 80860f14

For Linux Users: The 5-Step Fix

Most modern distributions (Ubuntu 20.04+, Fedora 34+, Arch Linux) include the necessary drivers, but they may need to be manually triggered. ACPI Hardware ID 80860F14 : A Case Study

Check Manufacturer Support: Visit the support page for your specific laptop or tablet model and look for "Chipset" or "Serial IO" drivers. Driver Support : The ACPI 80860F14 device requires

In the kernel source code (drivers/acpi/acpi_lpss.c), Intel LPSS devices are defined with specific IDs. The 80860F14 entry enables the dw_i2c driver (DesignWare I2C).

Advanced: Looking Under the Hood with Linux

For developers and power users, the Linux kernel provides clarity. Running acpidump or ls /sys/bus/acpi/devices/ will show the device.

sudo dmesg | grep -i "sst"
sudo i2cdetect -l (if i2c-tools installed)

In some configurations, particularly when switching between "Legacy" and "UEFI" BIOS modes, this specific hardware ID may disappear in favor of a PCI-based ID like