Resume from suspend on automatic schedule ?

1st Official Post

    Hello,

    I have LE 8.2.5 running on an x86 machine. It is in suspend mode when not in use (I think S3).

    Is it possible to set a wake timer in order to resume from sleep automatically at the same time every day (eg 3am) ?

    I found reference to setwakeup.sh but I am not sure if it will suit my purpose nor how to use it.

    Thanks

    If Your PC supports Wake On LAN then maybe Your router is capable to sen WOL command to it...

    On OPEN/DD-WRT and similar based routers You can use router to wake up WOL compatible devices...

    Quote from Jocke.Sve

    If Your PC supports Wake On LAN then maybe Your router is capable to sen WOL command to it...

    On OPEN/DD-WRT and similar based routers You can use router to wake up WOL compatible devices...

    My router is ISP locked-down but I do have an always-on Rpi with LE on same network so maybe I can send a schedule WOL packet from that. I was hoping not to involve other machines for simplicity/reliability reasons but I guess I can try something like that.

    Thanks

    • Official Post

    You could look at rtcwake which although is not in standard LE, it *might* be possible to just copy it from a Ubuntu or other X86 distribution.

    I've copied the file from Raspbian to a RPi3 LE system and it appears to run - so it's probably a standalone file requiring no extra libraries.

    However, I don't have an X86 LE machine to test it on.

    You can use setwakeup.sh to set a resume time.

    Bash
    setwakeup.sh $(date +%s -d 23:59)

    i.e. set a wake time of today 23:59. Other times need some more today/tomorrow time calculations.

    A sleep/resume script (see /storage/.config/sleep.d/99-sample.power.x) is a good place to set the resume time.

    Quote from mglae

    You can use setwakeup.sh to set a resume time.

    Bash
    setwakeup.sh $(date +%s -d 23:59)

    i.e. set a wake time of today 23:59. Other times need some more today/tomorrow time calculations.

    Thanks, this certainly works. But it only wakes the machine once. I need to wake everyday at same time.