Date: Sun, 09 May 2010 13:37:34 +0200 From: "Julian H. Stacey" <jhs@berklix.com> To: Nathan BIAGINI <nathan.open@gmail.com> Cc: freebsd-mobile@freebsd.org Subject: Re: high cpu temp and fan speed problem Message-ID: <201005091137.o49BbYIH035739@fire.js.berklix.net> In-Reply-To: Your message "Sun, 09 May 2010 11:20:27 %2B0200." <AANLkTil9QM0qUm6SakFsuLPLwBiijgmNfMrAzCbucLCS@mail.gmail.com>
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Nathan BIAGINI wrote:
> Hi,
>
> i bought a hp pavilion dv6-1123ef laptop and i've installed FreeBSD 8.0 on
> it. Everything work except one think : i can't do high-cpu task. The problem
> is when i run a high-cpu task (no very high in fact), my cpu temperature can
> increase to 90°C and when it's the case, system go down. Further, i heard
> the fans are running. When i work on windows (short time), i never had this
> kind of problem so i think is may be a kernel config problem.
>
> I precise that when i want to run mbmon to minitor cpu temp and fan speed
> (compiled form the ports), it return an unknow error like what no hardware
> monitor is found, the cause of my problem?
>
> Thanks for helping.
> PS : sorry if i'm not really clear but english isn't my native language.
All understandable, except 2nd para. needs: s/I precise/I presume/ :-)
Others know power better than me, but here's a first answer,
mouse copied from my laptop, to search for keyword to read manuals for,
while you wait for better answers :-)
man powerd # try powerd -v
sysctl -a | grep acpi
man acpi
My /boot/loader.conf # man loader.conf
acpi_toshiba_load="YES"
# apm_load="YES"
boot_verbose="yes" # Collect more info to later tune
debug.bootverbose="1" # Variable shown by sysctl -a.
# one of those 2 verbose is old syntax I think
My /etc/rc.conf # See also /etc/defaults/rc.conf
# apm_enable="NO" # Set to YES to enable APM BIOS functions (or NO).
# apmd_enable="NO" # Run apmd to handle APM event from userland.
# apmd_flags="" # Flags to apmd (if enabled).
powerd_enable="YES" # /etc/defaults/rc.conf = "NO"
powerd_flags="-a hiadaptive -b adaptive -n adaptive"
# -a maximum # too hot underneath, & USB2 cardbus might cook.
# -b minimum # just for max life if editing & not processing
# man powerd: Default adaptive for battery and hiadaptive for the rest.
# sysctl dev.cpu.0.freq # shows 300 to 1900
case $hostname in #{
homehostname)
powerd_flags="-a adaptive -b minimum -n minimum" # Less Heat
;
no_net_hostname)
# powerd_flags="-a maximum -b adaptive -n adaptive" # More Perf
powerd_flags="-a adaptive -b minimum -n minimum" # Less Heat
# powerd I may be at a lake. No power.
;
esac # }
Cheers,
Julian
--
Julian Stacey: BSD Unix Linux C Sys Eng Consultants Munich http://berklix.com
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