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Date: Tue, 03 Nov 2009 21:43:56 -0800
From: Yuri <yuri@rawbw.com>
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To: Ian Smith <smithi@nimnet.asn.au>
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Cc: Paul B Mahol <onemda@gmail.com>, freebsd-questions@freebsd.org
Subject: Re: Does hybernate/wakeup work?
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Ian Smith wrote:
> As Paul said, hibernation only works if the machine's BIOS supports it 
> (hw.acpi.s4bios = 1) AND you've already prepared a suitable disk area, 
> usually a separate slice (DOS partition) or as a file in a 'doze slice.
>
> To make even a vaguely informed guess as to whether hibernation and/or 
> acpiconf -s3 (suspend/resume) might work, we'd need to know:
>
>  What version of FreeBSD on which architecture?  (output of 'uname -a')
>
>  What make and model of laptop?  (someone may know if that one works)
>
>  Whether it runs a single or multiple CPUs?  (see /var/run/dmesg.boot)
>
>  The output of 'sysctl hw.acpi' ?
>
> cheers, Ian
>   

Here is this information:
FreeBSD-8.0-RC2
Laptop is Lenovo S10-2, single CPU, Intel Atom.

--- sysctl hw.acpi output ---

hw.acpi.supported_sleep_state: S3 S4 S5
hw.acpi.power_button_state: S5
hw.acpi.sleep_button_state: S3
hw.acpi.lid_switch_state: NONE
hw.acpi.standby_state: NONE
hw.acpi.suspend_state: S3
hw.acpi.sleep_delay: 1
hw.acpi.s4bios: 0
hw.acpi.verbose: 0
hw.acpi.disable_on_reboot: 0
hw.acpi.handle_reboot: 0
hw.acpi.reset_video: 0
hw.acpi.thermal.min_runtime: 0
hw.acpi.thermal.polling_rate: 10
hw.acpi.thermal.user_override: 0
hw.acpi.thermal.tz0.temperature: 43.0C
hw.acpi.thermal.tz0.active: -1
hw.acpi.thermal.tz0.passive_cooling: 0
hw.acpi.thermal.tz0.thermal_flags: 0
hw.acpi.thermal.tz0._PSV: -1
hw.acpi.thermal.tz0._HOT: -1
hw.acpi.thermal.tz0._CRT: 102.0C
hw.acpi.thermal.tz0._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
hw.acpi.thermal.tz0._TC1: -1
hw.acpi.thermal.tz0._TC2: -1
hw.acpi.thermal.tz0._TSP: 300
hw.acpi.battery.life: -1
hw.acpi.battery.time: -1
hw.acpi.battery.state: 7
hw.acpi.battery.units: 1
hw.acpi.battery.info_expire: 5
hw.acpi.acline: 1
hw.acpi.cpu.cx_lowest: C1


Yuri