Acpi 80860f14 Today
Decoding ACPI 80860F14: The Intel Bay Trail Audio Interface Conundrum
Introduction
In the world of x86 architecture and operating system development, few things are as simultaneously mundane and mission-critical as the ACPI (Advanced Configuration and Power Interface). For the average user, ACPI is an invisible layer that manages power states, device enumeration, and hardware configuration. However, for developers, system administrators, and Linux enthusiasts, encountering a string like ACPI 80860F14 can signal a deep dive into hardware compatibility and driver debugging.
Intel SD Host Controller drivers / Acer Aspire ES1-131 - DriverIdentifier Acpi 80860f14
- ACPI ID:
80860F14 - Hardware: Intel Bay Trail-T I2C Controller #5 (or general purpose controller).
- Driver: Typically handled by
pinctrl-baytrailordesignware_i2c(dw_i2c). - Issue: On some kernels (especially < 5.4 or custom builds), this device fails to probe correctly, leading to missing touchscreen, sensor, or GPIO expander functionality.
The SD card slot may appear completely dead, or the system might fail to detect an internal eMMC drive, making the device unbootable or severely limited. Device Manager Errors: Decoding ACPI 80860F14: The Intel Bay Trail Audio
3. ACPI Description
A typical DSDT entry includes:
