Difference between revisions of "System wakeup"
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==nvram-wakeup== | ==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. | 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| | + | {{Webpage|sourceforge.net/projects/nvram-wakeup|http://sourceforge.net/projects/nvram-wakeup}} |
{{Wikipage|Shutdown_Wakeup|Shutdown Wakeup}} | {{Wikipage|Shutdown_Wakeup|Shutdown Wakeup}} |
Revision as of 22:46, 16 January 2009
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.
Tip: Most newer machines should work correctly with ACPI Wakeup and you should probably try that method first.
ACPI Wakeup
This uses the system's ACPI subsystem and requires the presence of /proc/acpi/alarm or /sys/class/rtc/rtc0/wakealarm.
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.