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Old 07-07-2004, 08:13 PM   #1
taoweijia
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how to let system to sleep at certain time?


hi,
i wish to make my fedora core2 kernel 2.4.22-1.2115.ntpl go to sleep mode(power saving mode ) between 11pm and 5am automatically and of course it needs to be waken up (automatically) at 5am.
how do i do that?
thanks
 
Old 07-08-2004, 03:23 AM   #2
wiraone
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You can use cron job to bring your PC to sleep, but you need the BIOS feature to wake it up. Check if you've such feature in your BIOS. I've seen BIOS which will wake up on RING (modem) or on network request.
 
Old 07-08-2004, 03:27 AM   #3
taoweijia
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thanks, but i am looking for software controled sleep mode, without BIOS support. maybe ACPI or APM feature will help me? is there any command will bring system to sleep?
 
Old 07-08-2004, 04:05 AM   #4
wiraone
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There is a command called 'apmsleep' which uses APMD feature to bring your system to sleep. I have not use this command on my desktop machine, but I've used APMD features on my old notebook and it works. The only thing now is, I've no idea on how to wake it up on your desktop machine.

update: Opss.. this will work if you've APM compiled in the kernel.

Last edited by wiraone; 07-08-2004 at 04:10 AM.
 
  


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