System wakeup

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The BIOS on your computer’s motherboard will typically allow you to wake up your computer without additional hardware. More or less any modern machine should have a function for time-controlled booting. There are two methods that can be used with MythTV to wakeup your computer.

ACPI Wakeup

This uses the system's ACPI subsystem and requires the presence of /proc/acpi/alarm or /sys/class/rtc/rtc0/wakealarm.

Wikipage.png - ACPI Wakeup mythTV wiki page

nvram-wakeup

This is a small program that reads and writes the WakeUp time in the BIOS. This is done via /dev/nvram on recent kernels (>2.4.6, including 2.6.x) or, alternatively, via direct ISA access. On this WakeUp time the computer is powered on automatically.

Webpage.png - http://sourceforge.net/projects/nvram-wakeup

Wikipage.png - Shutdown Wakeup mythTV wiki page