[Debian-eeepc-devel] Installation of cpufrequtils

[Paul Menzel]

Dear list,


a text search for cpufrequtils in the Debian Wiki just returned [1]
relating to the Eee PC. There it says to install cpufrequtils on the
EeePC 901.

I have an ASUS Eee PC 701 4G.

1. I thought, that the Intel(R) Celeron(R) M is doing the frequency
scaling by itself and that it is implemented in the hardware. Is that
true?

2. If not, how to set it up? Trying to do it as in [2].

My question are written as comments in the next output.

$ sudo aptitude install cpufrequtils

[…]
Richte libcpufreq0 ein (004-2) ...
Richte cpufrequtils ein (004-2) ...
CPUFreq Utilities: Setting ondemand CPUFreq governor...disabled, governor not available...done.
[…]

$ # Contrary to [2] /etc/default/cpufrequtils does not exist.

$ less /usr/share/doc/cpufrequtils/README.Debian
$ sudo cp /usr/share/doc/cpufrequtils/examples/cpufrequtils.sample /etc/default/cpufrequtils
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies 
112500 225000 337500 450000 562500 675000 787500 900000
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors 
performance
$ sudo modprobe cpufreq_ondemand # Do I have to add it to /etc/modules?

$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors 
ondemand performance
$ # Is this needed. [1] says acpi_cpufreq is sufficient.

$ sudo vim /etc/default/cpufrequtils # Adapt to the values shown.
$ sudo invoke-rc.d cpufrequtils stop
$ sudo invoke-rc.d cpufrequtils start
$ sudo invoke-rc.d cpufrequtils restart
$ # Why is there no output?


3. Should that be added to the FAQs or Configure?


Thanks a lot,

Paul


[1] http://wiki.debian.org/DebianEeePC/Model/901?highlight=%28cpufrequtils%29
[2] http://julien.danjou.info/blog/index.php/post/2008/08/13/Save-power-aka-easy-CPU-frequency-scaling
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 197 bytes
Desc: Dies ist ein digital signierter Nachrichtenteil
Url : http://lists.alioth.debian.org/pipermail/debian-eeepc-devel/attachments/20080905/a0c8cc16/attachment.pgp