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Thread: Failure to wake using rtcwake command

  1. #1
    Join Date
    Sep 2010
    Beans
    7

    Failure to wake using rtcwake command

    Hi,

    I'm trying to wake my ubuntu pc using an rtcwake event and pm-suspend.
    I basically use the scripts in this thread: http://ubuntuforums.org/showthread.php?t=938533

    I have by now tried everything I could imagine to get the box to wake up, but it just won't. I have the latest BIOS version and a quite new pc (ASUS M4A78LT-M LE motherboard). The BIOS clock is set to utc, and RTC alarms are enabled there.

    Does anyone have any new ideas I could try? I'm pretty surprised I can't get this to work because the same scripts work perfectly on another pc I have (which is actually older).

    Any help is greatly appreciated.

    Thanks in advance!

  2. #2
    Join Date
    May 2010
    Beans
    20

    Re: Failure to wake using rtcwake command

    took alot of playing around but this works for me, not sure if you have already tried it.

    Code:
    sudo rtcwake -d rtc0 -m mem -s 40 -u -v

  3. #3
    Join Date
    Sep 2010
    Beans
    7

    Re: Failure to wake using rtcwake command

    Hi,

    Thanks for your reply. Unfortunately, this did not work either.
    Here's the output of the command:
    Code:
    Using UTC time.
    	delta   = 0
    	tzone   = 0
    	tzname  = UTC
    	systime = 1285309982, (UTC) Fri Sep 24 06:33:02 2010
    	rtctime = 1285309982, (UTC) Fri Sep 24 06:33:02 2010
    alarm 0, sys_time 1285309982, rtc_time 1285309982, seconds 40
    rtcwake: wakeup from "mem" using /dev/rtc0 at Fri Sep 24 06:33:43 2010
    After waiting a couple of minutes, nothing happened and I had to wake it by hand. In the meantime I have found a BIOS setting which let me set a daily wake event. This was actually what I was looking for, so my problem is solved.

    Although if there are any other ways this could work, I certainly would be interested.

    Thanks for your help!

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