Acpi Mat0019 -
If MAT0019 is missing or malfunctioning, the device will still boot but will exhibit reduced hardware functionality (e.g., battery issues, fan always on, no keyboard backlight). Resolution requires proper Surface firmware/drivers from Microsoft (Windows) or an up‑to‑date kernel with surface-aggregator-module (Linux). ACPI MAT0019 Classification: Hardware / ACPI / Embedded Controller Last reviewed: [Current date]
Below is a structured technical report based on ACPI MAT0019 . 1. Executive Summary | Attribute | Details | |-----------|---------| | Device ID | MAT0019 | | Device Class | ACPI Platform Device | | Common Name | Surface System Aggregator (SAM) / Surface ACPI Aggregator | | Primary Vendor | Microsoft Corporation | | Hardware Found On | Microsoft Surface devices (Pro 4+, Laptop, Book, Go, Studio) | | Driver (Windows) | SurfaceAcpiAggregator.sys (part of Surface firmware extensions) | | Driver (Linux) | surface_aggregator (part of surface-aggregator-module / upstream kernel since v5.14+) | 2. Function & Purpose The MAT0019 ACPI device interfaces with the Surface System Aggregator (SAM) microcontroller. The SAM is a dedicated embedded controller (EC) that manages low-level hardware functions not covered by the standard ACPI or chipset EC. acpi mat0019
cat /sys/bus/acpi/devices/MAT0019:00/path Windows: If MAT0019 is missing or malfunctioning, the device
Get-PnpDevice -InstanceId "ACPI\MAT0019*" Get-WmiObject -Class Win32_PnPEntity | Where-Object $_.HardwareID -like "*MAT0019*" The SAM is a dedicated embedded controller (EC)
sc query SurfaceAcpiAggregator pnputil /enum-devices /instanceid "ACPI\MAT0019\..."