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iago
n00b
n00b


Joined: 04 Apr 2003
Posts: 16
Location: Rivarolo Canavese, Turin, Italy

PostPosted: Tue Mar 28, 2006 12:10 pm    Post subject: ibook sudden halt Reply with quote

Hi guys,
I have an hardware related problem.
I use my iBook throughout the day, eventually keeping it running the entire day.
Sometimes, though, it switches down to a halt without noticing its decision, neither in the logs (dmesg and var/log/everything don't contain any hint to what possibly caused the halt), nor in any other form.
I suspect a problem with pbbbuttonsd or in the "batteria tampone", that simple component that keeps system clock going and has the function of a backup battery. In fact, my system clock is always wrong on startup, and it stops whenever I shutdown my system. After any sudden halt the clock resets to a date in the (remote) past, but it doesn't affect any other component of the system.
I suspect also a failure in the nvram (openfirmware), since it resets the machine. But I haven't noticed any change in the keyboard/PMU configuration, that would point me towards that direction.
Now, here are the questions:
* does anybody other faced a similar problem?
* does anybody have a clue about what's the problem?
* should I bother about my system state, preparing myself in the eventuality my iBook wants to stop to collaborate with me?

comments and thoughts are welcome.

--
Ivo
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jedsen
Apprentice
Apprentice


Joined: 15 Oct 2004
Posts: 276
Location: Sacramento, California, USA

PostPosted: Tue Mar 28, 2006 3:09 pm    Post subject: Reply with quote

I also share your frustrations. Pbbuttonsd causes some problems with random poweroffs and halts on my ibook. As far as I know there no way to solve it, just keep using the latest version.
You say your clock stops when you poweroff? I think it's just set to UTC, but I'm not sure. A good way to solve it is to install ntp, then add ntp-client and ntpd to init:
Code:
emerge ntp
rc-update add ntp-client default
rc-update add ntpd default
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iago
n00b
n00b


Joined: 04 Apr 2003
Posts: 16
Location: Rivarolo Canavese, Turin, Italy

PostPosted: Tue Mar 28, 2006 7:37 pm    Post subject: Reply with quote

Thank you,
I already knew this solution.. but it helps. You can get troubles while starting services if they are started before ntp-client.. A partial solution to this behaviour can be found in modifying /etc/conf.d/clock's CONFIG_SYSTOHC value to "yes" and force the system to save the hardware clock.
Anyway, this isn't a solution when pbbuttonsd/other things force your system to halt..

if anybody out there has a similar problem, please tell us something!
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