On Tue, 25 Jan 2000, Tony Nugent wrote:
[snip background]
> ATX motherboards, yeech! (I never did like the concept, but that's
> what we have so that's what I have to live with). They don't power up
> when the power is restored unless the power button is pressed - a big
> problem if the button on the box box is hundreds of km away :) We are
> looking into getting something like "wake on lan" to manage this
> particular problem (although WoL is not the solution in our particular
> case).
Also, you might check the boards themselves; most ATX motherboards
have a jumper to control their state when power is restored (that or
an option in their bios). This would require a single trip, but it
would solve the problem ;) I personally have two ATX boxes sitting
right here that both come right back on after a power outage.
> What doesn't work is the halt command, which is issued either on the
> command line or from the pchute daemon - the standard RH6.1 kernel
> OOPS'es badly (and very impressively!) when it actually halts and
> attempts to power doen, locking up the system in an unusable state
> instead of actually shutting off the power. And in this situation
> nothing BUT a push of the big red button will get things working
> again.
>
> So from our esperiences, "power off on halt" appears to be badly
> broken in these kernels.
What kind of motherboard are they? And what bios version? There are
some motherboard/bios combos that are broken and don't properly handle
the APM power-off. There was a discussion on this relatively recently
on linux-kernel, which resulted in a real mode poweroff patch if I
remember correctly.
> Before I go off recompiling and upgrading kernels, I'd like to know if
> anyone else has experienced this, and if they know of a working
> solution. (Eg, will the current rawhide kernel work?)
If you're having problems, I don't think the current rawhide kernel has
anything that will help. You might try a BIOS upgrade as well, but
that's all I can think of.
Hope this helps,
Jeremy
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Jeremy Katz http://linuxpower.org
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