Automatic shutdown with devd.
demelier.david at gmail.com
Thu Jun 3 13:04:29 UTC 2010
2010/6/3 Ian Smith <smithi at nimnet.asn.au>:
> On Tue, 1 Jun 2010, David DEMELIER wrote:
> > 2010/6/1 Ian Smith <smithi at nimnet.asn.au>:
> > > In freebsd-questions Digest, Vol 313, Issue 4, Message: 26
> > > On Tue, 1 Jun 2010 10:55:08 +0200 David DEMELIER <demelier.david at gmail.com> wrote:
> > > > Is there a way to make this conditional to do only if the laptop is
> > > > not charging, AC plugged in ?
> > >
> > > Your script can check whether the AC power is on with:
> > >
> > > AC=`sysctl -n hw.acpi.acline`
> > > if [ $AC = 1 ]; then
> > > exit 0 # or whatever, when on AC power
> > > elif [ $AC = 0 ]; then
> > > : # do whatever when on battery
> > > else
> > > : # AC/Battery state unknown ..
> > > fi
> > >
> > > You could try just logging all state changes for a while; from critical
> > > charging to charging to high to discharging to critical discharging, I
> > > think that's the lot .. you can also check hw.acpi.battery.life etc.
> > >
> > Okay I will try a script like this one.
> Let us know how it goes; it's clearer now from below why you need this.
> > > However, your system should do an 'emergency suspend' on critical low
> > > battery anyway .. usually set at 1% capacity but some BIOS will let you
> > > adjust that (see acpiconf -i0). Only if suspend/resume works of course.
> > >
> > It would be great if suspend/resume would works yes ! For the moment
> > it's not the case :
> > http://www.freebsd.org/cgi/query-pr.cgi?pr=i386/146715
> Ah yes. I guess you might have to try the freebsd-acpi list about that,
> after reading the ACPI debugging section of the Handbook, providing your
> dmesg and probably an acpidump of your ASL as shown there.
> I don't know the current status of suspend/resume on amd64, nor anything
> about your HP Probook 4510s. The freebsd-mobile list might be a better
> place to start, at least to ask whether anyone else shares your problem?
> cheers, Ian
Okay, the HP Probook has some problems with ACPI suspend/resume now. I
attached the acpidump -dt.
As described in the PR, the resume works but seems to freeze (cannot
shutdown by pressing the power button) and the screen stays off.
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