Re: ACPI S3 and VIA (C3) CPU

["Joel CARNAT" <joel%carnat.net@localhost>]

Le Dim 31 août 2008 23:27, Nicolas Joly a écrit :
> On Sun, Aug 31, 2008 at 11:05:42PM +0200, Joel CARNAT wrote:
>> Le Dim 31 août 2008 22:52, Nicolas Joly a écrit :
>> > On Sun, Aug 31, 2008 at 10:44:29PM +0200, Joel CARNAT wrote:
>> >> Hello,
>> >>
>> >> I tried zzz(8) on my VIA machine (VIA Nehemiah) but got the error:
>> >> acpi0: entering state 3
>> >> acpi0: ACPI S3 not available on this platform
>> >> Using "sudo apm -S" just froze the machine.
> [...]
>> # sysctl hw.acpi
>> hw.acpi.root = 1010208
>> hw.acpi.supported_states = S0 S1 S4 S5
>>
>> Is there some hidden option to enable in the kernel ?
>
> No. AFAIK, it won't work without a BIOS supporting it.
>

For what it's worth knowing this, I just booted an OpenBSD 4.4 release
from USB. I can't find the ACPI supported states information, but when I
ran "zzz", my SSH session froze and the TV-out went black. Nothing changed
when I hit the USB keyboard. Only when I used the on/off button, the
screen output came back. So did my SSH session.

I also see that OpenBSD reports temperature correctly (about 45°C) when
NetBSD give dumm value (something like -350°C).

OpenBSD says my CPU is:
hw.model=VIA Nehemiah ("CentaurHauls" 686-class)
hw.product=CLE266-8235

Should I boot a live-Linux to check if this machine supports suspend (with
a special device) ?

Regards,
    Jo