[solved]CPU Scaling.

ApplePi · 2011-08-01 04:31:02

Really liking Arch, learning more now than in the past few months of other distros.
I'm currently trying to get CPU scaling to work as my little netbook is running at a constant 1.6ghz and its driving me nuts. I've been following along in the wiki under Laptop Mode Tools and CPU Frequency Scaling, I added the line in modules and daemons. In the startup everything lists and [done] except the Modules line and I now get this output from cpufreq-info.

cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
analyzing CPU 0:
  no or unknown cpufreq driver is active on this CPU
  maximum transition latency: 0.00 ms.
analyzing CPU 1:
  no or unknown cpufreq driver is active on this CPU
  maximum transition latency: 0.00 ms.

This is on an Asus EEEpc 1000ha if that helps.
I did do some searching, I've noticed this forum is very informative but not so forgiving at times., nothing seemed to come up with similar output to what I get.

Last edited by ApplePi (2011-08-01 18:34:20)

skunktrader · 2011-08-01 04:41:39

On my EEE1001P I have acpi-cpufreq in my MODULES array and acpid and laptop-mode in my DAEMONS array and it works just fine.

ApplePi · 2011-08-01 04:47:53

I added in acpid to my DAEMONS, gonna take it for a reboot and see what happens. I want to get it fixed from how it is now, but if need be could i just -Rs all the stuff I added in from this endeavor and start over?
edit>Still getting the failed module, I did 'modprobe acpi_cpufreq' and getting proper output now.

analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 1.60 GHz
  available frequency steps: 1.60 GHz, 1.33 GHz, 1.07 GHz, 800 MHz
  available cpufreq governors: performance
  current policy: frequency should be within 800 MHz and 1.60 GHz.
                  The governor "performance" may decide which speed to use
                  within this range.
  current CPU frequency is 1.60 GHz (asserted by call to hardware).
analyzing CPU 1:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 1
  CPUs which need to have their frequency coordinated by software: 1
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 1.60 GHz
  available frequency steps: 1.60 GHz, 1.33 GHz, 1.07 GHz, 800 MHz
  available cpufreq governors: performance
  current policy: frequency should be within 800 MHz and 1.60 GHz.
                  The governor "performance" may decide which speed to use
                  within this range.
  current CPU frequency is 1.60 GHz (asserted by call to hardware).

Its now bedtime, more on getting this to work tomorrow. Atleast now I can get an output so maybe it's en route to working properly.

Last edited by ApplePi (2011-08-01 05:00:24)

skunkos · 2011-08-01 07:55:47

Add "acpi_cpufreq" to your modules to rc.conf

Reboot and now you can edit cpu power scalling by cpufreq-set

https://wiki.archlinux.org/index.php/CP … cy_Scaling

ApplePi · 2011-08-01 16:53:32

Got that, when I modprobe it works fine for giving me the output but is still at 1.6ghz, but after rebooting I guess the bits added to MODULES and DAEMONS takes over and gives me the ouput in my first post again.
edit>
Guess I maybe just had a typo somewhere, now I get actual info back from 'cpufreq-info"

cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 1.60 GHz
  available frequency steps: 1.60 GHz, 1.33 GHz, 1.07 GHz, 800 MHz
  available cpufreq governors: ondemand, performance
  current policy: frequency should be within 800 MHz and 1.60 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 800 MHz.
analyzing CPU 1:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 1
  CPUs which need to have their frequency coordinated by software: 1
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 1.60 GHz
  available frequency steps: 1.60 GHz, 1.33 GHz, 1.07 GHz, 800 MHz
  available cpufreq governors: ondemand, performance
  current policy: frequency should be within 800 MHz and 1.60 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 800 MHz.

It already seems to be running cooler, sweet, just gonna add in some other options for it like powersave and call it done.
Thanks!

Last edited by ApplePi (2011-08-01 17:06:33)

MoonSwan · 2011-08-01 17:38:16

You may want to look at the page dedicated to EeePC 1005 netbooks, it has a very good layout of what works on a netbook similar to yours.

Please mark this as solved too.

Arch Linux

#1 2011-08-01 04:31:02

[solved]CPU Scaling.

#2 2011-08-01 04:41:39

Re: [solved]CPU Scaling.

#3 2011-08-01 04:47:53

Re: [solved]CPU Scaling.

#4 2011-08-01 07:55:47

Re: [solved]CPU Scaling.

#5 2011-08-01 16:53:32

Re: [solved]CPU Scaling.

#6 2011-08-01 17:38:16

Re: [solved]CPU Scaling.

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