Atom N450 cpufreq problem

Greetings, travelers.
I have bought a new netbook recently and i am trying to make cpufreq work correctly. but! i cant set the core freq highter than 1,33GHz which isnt right. I have noticed that
[void@hp ~]$ cpufreq-info
cpufrequtils 007: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to [email protected], please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1000 MHz - 1.67 GHz
available frequency steps: 1.67 GHz, 1.33 GHz, 1000 MHz
available cpufreq governors: powersave, ondemand, performance
current policy: frequency should be within 1000 MHz and 1.33 GHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 1.33 GHz.
analyzing CPU 1:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1
CPUs which need to have their frequency coordinated by software: 1
maximum transition latency: 10.0 us.
hardware limits: 1000 MHz - 1.67 GHz
available frequency steps: 1.67 GHz, 1.33 GHz, 1000 MHz
available cpufreq governors: powersave, ondemand, performance
current policy: frequency should be within 1000 MHz and 1.33 GHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 1.33 GHz.
current policy enables only 1.33 GHz and and dont know how to change this.
Any ideas?
cpufreq-set -f 1.6GHz does not return any error, but it only sets the clock speed to 1.33GHz
Last edited by Void_Walker (2010-06-25 14:03:48)

Update: WORKAROUND: add "processor.ignore_ppc=1" to your kernel boot line, like this:
# (0) Arch Linux
title Arch Linux
root (hd0,0)
kernel /vmlinuz26 root=/dev/sda3 processor.ignore_ppc=1 ro
initrd /kernel26.img
and change the value in
/sys/module/processor/parameters/ignore_ppc
from 0 to 1
but still, this isn't a solution (yes, it does work, but... its only a workaround) hopefully, this will be solved in future, until then, you may stick with this...
Gusar wrote:That number is not ugly, it's 1333000Hz or 1.33GHz. Of course it should be 1666000 instead, but I don't know how to help you get to that. Have you tried using the userspace governor and setting the freq manually?
Yes, I have tried to set the freq manualy. It was possible to change the freq in range of 1ghz to 1.33ghz, but not highter.
dieghen89 wrote:Try put max_freq="1.67GHz"...In my n280 i solved so....
I already have done this long ago... my problem was that the bios_limit is set to 1.33ghz, whitch isn't the real maximum of my processor.
Last edited by Void_Walker (2010-06-27 20:19:54)

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