[mythtv-users] Can't get system to wake up at set time.

Sun Mar 18 08:44:07 UTC 2007

I think you´ll get it working ; )

On 3/18/07, Craig Huff <huffcs at yahoo.com> wrote:
>
> Henrik,
>
> Thank you for the suggestion.
>
> I take it that you mean the BIOS setting for enabling/disabling the HW
> alarm clock.  If so, I have tried your suggestion and it didn't work for me.
>

No, my bad.
I mean the shutdown script that sets the system time to the hardwareclock at
shutdown.
Try and disable it and see.

Note that I had been successful getting the system to wakeup at a set time
> with the alarm clock enabled in the BIOS if I shutdown using the front-panel
> soft-power button but not if I let Fedora Core 6 shutdown the system.
>
> I use nvram-wakeup to access /dev/nvram and /dev/rtc instead of using
> /proc/acpi/alarm because /proc/acpi/alarm is apparently misconfigured
> somewhere (dsdt? BIOS? FC6?).
>
> If I do:
> #      cat /proc/acpi/alarm
> I get a bogus return like:
>       2007-00-00 00:00:00
> even when I first set the alarm in the BIOS (or using nvram-wakeup).
>
> If I set the alarm with:
> #      echo "2007-03-17 16:30:45" > /proc/acpi/alarm
> I can get the same value back when I "cat" it, but it isn't set in the
> nvram if I reboot and go into the BIOS to check it.
>

My motherboard doesn´t show the settings in bios but it still works, try
disabling the hwclock setting at shutdown and try again, it´s likely that it
will work even though the alarm time doesn´t show in bios. Also my alarm
time doesn´t show in /proc/acpi/alarm after reboot. Can´t remeber if I have
a bios alarm wakeup once a month i BIOS, I have a vague memory that  I had
to set a  bogus entry there to get it to work.

/Henrik

Craig Huff
> huffcs at yahoo.com
>
> ----- Original Message ----
>
> hmmmm,
> Have you tried to disable the set HW clock setting ?
> Also, if your method involves writing to /proc/acpi/alarm do you write in
> the right format and do your shutdown script run with the right priviliges.
> I use /proc/acpi/alarm on my a8n-vm cms with the HW clock setting
> disabled, setting hw clock on shutdown made wake up fail occasionaly.
>
> /Henrik
>
> On 3/17/07, Craig Huff <huffcs at yahoo.com> wrote:
> >
> > To paraphrase Princess Leia: "You're my last hope."
> >
> > I am using nvram-wakeup and Suspend2 to set the wakeup time and shutdown
> > my Fedora Core 6 system so that it will wake up when it is time to record a
> > show.
> >
> > The pieces work, but not together.
> >
> > I can use nvram-wakeup to set the alarm clock and confirm it is set in
> > the BIOS.
> >
> > I can set the alarm with nvram-wakeup and shut down the system using the
> > front panel "soft-off" power button and the system WILL wake up at the
> > appointed time.
> >
> > I can use Suspend2 to hibernate the system and recover on reboot.
> >
> > I can use mythwelcome to invoke both of these.
> >
> > However, when I do this, the system never wakes up at the time
> > specified.
> >
> > I have tried the suggested change to /etc/init.d/halt, but no
> > improvement.
> >
> > I tried setting the alarm time twice with manual invocations of
> > nvram-wakeup (to the same time) followed by a forced shutdown (shutdown -n
> > now), but no improvement.
> >
> > FWIW, here is the debug_info from Suspend2:
> > Suspend2 debugging info:
> > - SUSPEND core   : 2.2.9
> > - Kernel Version : 2.6.18-1.2869_1.fc6.cubbi_suspend2
> > - Compiler vers. : 4.1
> > - Attempt number : 6
> > - Parameters     : 0 16 0 0 0 5
> > - Overall expected compression percentage: 0.
> > - Compressor is 'lzf'.
> >   Compressed 290709504 bytes into 145282452 (50 percent compression).
> > - SwapAllocator active.
> >   Swap available for image: 519908 pages.
> > - FileAllocator inactive.
> > - I/O speed: Write 81 MB/s, Read 105 MB/s.
> > - Extra pages    : 22 used/756.
> >
> > The mobo is an ASUS A8N-SLI with an Athlon 64 3200+ and 512MB.  I
> > upgraded to this from a Gigabyte GA-7DX mobo I had planned to use because I
> > had the same problem with it using FC5 and thought it was just too
> > old/incompatible.
> >
> > I would consider using a different distro, but based on Jarod Wilson's
> > website, I would expect that FC is suitable.  I find it hard to believe that
> > this new ASUS mobo is incapable of supporting ACPI suspension and wakeup by
> > alarm clock.
> >
> > I am running out of ideas.
> >
> > I've been struggling with MythTV since September and just about run out
> > of patience.  If I can't get this working this month, I'll just have to give
> > up on Linux and MythTv and go buy a Tivo because "it just works".
> >
> > Any help would be appreciated.
> >
> > Craig Huff
> > huffcs from yahoo
> >
>
>
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