[mythtv-users] WakeOnAlarm still not working

Michelle Dupuis support at ocg.ca
Thu Nov 29 12:25:02 UTC 2007

Start real simple...

1. Check BIOS supports wakeup and is turned on in bios
2. Set a wakeup time in the BIOS
3. Watch if system wakes
4. If yes, set new wakeup time writing direct to /proc/acpi
5. If yes, try setting wakeup time using script like acpi-wakeup
6. If yes, link this script into myth

If you get stuck at step 1 or 2, you need mobo support.

> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org 
> [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Peter Carlsson
> Sent: Thursday, November 29, 2007 5:05 AM
> To: mythtv-users at mythtv.org
> Subject: [mythtv-users] WakeOnAlarm still not working
> Hello!
> A while back I asked for help about my problems with Wake On Alarm.
> I have not yet solved the problem, but I feel I am getting 
> closer and closer...
> I have tried to follow this excellent guide:
> https://help.ubuntu.com/community/MythTV/Install/WhatNext/ACPIWake
> It is written for Ubuntu though I use Debian.
> Setting the wake up time in BIOS and turning off the computer 
> with the case button works.
> Setting the wake up time in /proc/acpi/alarm and doing either 
> 'shutdown -h -P now' or 'shutdown -h -H now' does not work.
> I have also tried with the special kernel image which only 
> purpose is to do a reboot before shutdown. That does not work either.
> I was suggested to modify /etc/init.d/halt to set 
> /proc/acpi/alarm after setting the hwclock. But in Debian 
> this seems to be handled in the /etc/init.d/hwclock.sh and 
> /etc/init.d/hwclockfirst.sh, which I have both modified 
> according to the guide above.
> I have also used cat_nvram (part of nvram_wakeup) to verify 
> that what I write to /proc/acpi/alarm actually get written to 
> NVRAM, which it does.
> Could there be any installed packages in conflict with what I 
> am trying to do? I have manually installed the following packages:
>   powersaved, nvram-wakeup, hibernate, acpid
> Any thoughts or suggestions?
> Best regards,
> Peter Carlsson
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