ACPITHINKPAD(4) | Device Drivers Manual | ACPITHINKPAD(4)

# NAME

`acpithinkpad` — IBM/Lenovo ThinkPad ACPI support

# SYNOPSIS

`acpithinkpad* at acpi?`

# DESCRIPTION

The `acpithinkpad` driver provides ACPI support for IBM/Lenovo ThinkPad laptops. It responds to various hotkey button presses such as the brightness adjustment and wireless toggle keys.

The `acpithinkpad` driver sets up various sensors that indicate the current state of certain hardware devices present on ThinkPad laptops. These include temperature sensors and fan rotational speed sensors, as well as a sensor indicating the current state of the port replicator device. These sensors can be used with sensorsd(8) to perform events on sensor state changes. Note that the port replicator indicator will report a state of UNKNOWN until the first port replicator connect/disconnect event is received.

# SEE ALSO

acpi(4), intro(4), sensorsd(8)

# HISTORY

The `acpithinkpad` driver first appeared in OpenBSD 4.4.

May 22, 2018 | Debian