Laptop running fan constantly on latest Breezy

[Robert Young]

Not sure about the set up in Ubuntu but I would assume that you are
not currently running your cpu in ondemand mode.

In Gentoo you would look in
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

it should say ondemand

What do you see in
#sudo vi /proc/config.gz

after CPU the CPU Frequency scaling



#
# APM (Advanced Power Management) BIOS Support
#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
# CONFIG_CPU_FREQ_DEBUG is not set
CONFIG_CPU_FREQ_STAT=y
# CONFIG_CPU_FREQ_STAT_DETAILS is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set

#
# CPUFreq processor drivers
#
CONFIG_X86_ACPI_CPUFREQ=y
CONFIG_X86_POWERNOW_K6=y
CONFIG_X86_POWERNOW_K7=y
CONFIG_X86_POWERNOW_K7_ACPI=y
CONFIG_X86_POWERNOW_K8=y
CONFIG_X86_POWERNOW_K8_ACPI=y


this is my gentoo configuration (my laptop is not on at home so I can
not check it)
Some one with working on demand should post there section so you can
compare yours to theirs.

Hope this helps

On 10/6/05, Frank Merenda <fmerenda at yahoo.com> wrote:
> Hello all,
>
> I have upgraded to Breezy from Hoary about a week ago, and am running the
> 2.6.12-9-686-smp kernel. All my packages are up to date as of this morning. I
> have been updating every few days.
>
> My laptop has a full P4 (not mobile).
>
> My laptop fan runs constantly since I have upgraded, but not always at full
> speed. My temp doesn't seem high:
>
> cat /proc/acpi/thermal_zone/THM0/temperature
> temperature:             48 C
> (trip_points is 85C)
>
> When I run processor-intensive applications, the fan does kick up a notch, so it
> seems like things are working correctly, but the fan is *always* running. I
> don't remember this behavior in Hoary.
>
> Is anyone else experiencing this? Or am I just losing it (which is possible!)
>
> Thanks,
> -Frank
>
>
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