Smo8800 1 - Acpi

The Ghost in the Kernel: Decoding the ACPI SMO8800 “Write” Error on Linux

Create a file: /etc/modprobe.d/blacklist-smo8800.conf acpi smo8800 1

If you’ve spent any time digging through dmesg or journalctl on a modern Linux laptop (especially a Dell, Lenovo, or HP), you’ve likely stumbled upon a cryptic set of lines that look something like this: The Ghost in the Kernel: Decoding the ACPI

ACPI: SMO8800:00: Failed to write error status (ae_error) acpi smo8800 1: write failed (cmd=0x...) At first glance, it looks like a hardware failure—maybe a dying motherboard or a corrupted BIOS. But in 99% of cases, it’s neither. Today, we’re going to demystify what SMO8800 actually is, why it’s trying to "write" something, and why you can (probably) ignore it safely. SMO8800 is the ACPI device ID for a STMicroelectronics accelerometer (usually the LIS3DVH or similar). This tiny chip is not for rotating your screen or detecting falls on a smartphone. In the laptop world, it serves one very specific purpose: Free Fall Protection . SMO8800 is the ACPI device ID for a