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Matthew Garrett - University of Cambridge

Linux and ACPI - a brave new world of power management

A decreasing proportion of available hardware supports the traditional APM power management scheme. Instead, vendors are moving to ACPI. Rather than putting power management under the control of the hardware, ACPI moves policy to the operating system. This provides a great deal of extra flexibility, but also makes implementation a great deal more awkward.

This talk will present the current state of Linux support for ACPI, along with a set of tips and tricks for actually getting your laptop to successfully suspend and resume. It will also look at future developments, including the integration of ACPI into the Linux desktop in order to provide them with extra contextual information.