From owner-freebsd-acpi@FreeBSD.ORG  Wed Nov 10 14:33:53 2010
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From: Mathias Picker <Mathias.Picker@gmx.de>
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Date: Wed, 10 Nov 2010 15:07:10 +0100
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Subject: Acer 5553g / Mobile Phenom N930 C-States
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Hi,

my N930 reports C1 as lowest cpu state:

mp% sysctl -a|grep cx_supp
dev.cpu.0.cx_supported: C1/0
dev.cpu.1.cx_supported: C1/0
dev.cpu.2.cx_supported: C1/0
dev.cpu.3.cx_supported: C1/0

I searched the net, but I can't tell if that's correct. 

The system runs rather loud with FreeBSD (fan running full speed, cpu
temp around 59°C).

I can't switch off the second graphics card, one of my last ideas of
getting it any cooler would be c2/c3. I've followed every other tip from
TuningPowerConsumption and need still around 3315 mA.

Thanks for any help,


Mathias


boot -v output: http://pastebin.com/VWYifahu
acpidump -dt: http://pastebin.com/V82SuzrW

cpufreq scaling works fine:

dev.cpu.0.%desc: ACPI CPU
dev.cpu.0.%driver: cpu
dev.cpu.0.%location: handle=\_PR_.C000
dev.cpu.0.%pnpinfo: _HID=none _UID=0
dev.cpu.0.%parent: acpi0
dev.cpu.0.freq: 800
dev.cpu.0.freq_levels: 2000/7632 1700/5945 1400/4582 1100/3422 800/2328
dev.cpu.0.temperature: 59,1C
dev.cpu.0.cx_supported: C1/0
dev.cpu.0.cx_lowest: C1
dev.cpu.0.cx_usage: 100.00% last 2038us
dev.cpu.1.%desc: ACPI CPU