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Phk
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Joined: 02 Feb 2004
Posts: 428
Location: [undef], Lisbon, Portugal, Europe, Earth, SolarSystem, MilkyWay, 23Q Radius, Forward Time
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 Posted: Thu Nov 17, 2005 12:58 am Post subject: CPUFreqd BUG!! (AC and no BATT) |
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Hi there!
I'm having a strange behaviour from the cpufreqd..
| Code: | cpufreqd | boot
cpufrequtils |
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This is my "rc-update show" section about the cpufreq stuff.
The behaviour is: The daemon switches the desired frequency automatically, even when i set it to userspace mode, using
| Code: | | cpufreqd-set -g userspace && cpufreqd-set -f 2.53Ghz |
When i have the computer plugged to AC, the system chooses "ondemand" schedule, and keeps activating it until i
| Code: | | /etc/init.d/cpufreqd stop |
so it stops bothering me after that.
Why's this?
Thanks,
Phk!
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Last edited by Phk on Mon Nov 21, 2005 1:48 am; edited 1 time in total |
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feivelda
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Joined: 21 Feb 2005
Posts: 480
Location: Frankfurt, Germany
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| Posted: Thu Nov 17, 2005 7:08 am Post subject: |
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You're mixing ttwo things:
What you want to do is
| Code: | | cpufreq-set -g userspace && cpufreq-set -f 2.53 Ghz |
cpufreqd is a daemon to control your cpu. The config file for this is in
/etc/cpufreqd.conf
Look at this and all will be clear.
If you want to set your freq by hand, do an /etc/init.d/cpufreqd stop
before you set something with the cpufreq-set command.
Also I would suggest to use cpufreqd on the default runlevel, not on the boot |
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Phk
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Joined: 02 Feb 2004
Posts: 428
Location: [undef], Lisbon, Portugal, Europe, Earth, SolarSystem, MilkyWay, 23Q Radius, Forward Time
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| Posted: Thu Nov 17, 2005 3:57 pm Post subject: |
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Yes, i know the conf file you've mentioned, and i know the supposed behaviour of the Daemon.
However, there is a strange bug:
Why does it change to "ON DEMAND" or "POWER SAVE"
WHEN
i don't even have my battery plugged? 
If it's on powercable, it should always be at maximum speed... don't you think?! 
Phk
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Phk
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Joined: 02 Feb 2004
Posts: 428
Location: [undef], Lisbon, Portugal, Europe, Earth, SolarSystem, MilkyWay, 23Q Radius, Forward Time
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| Posted: Mon Nov 21, 2005 1:47 am Post subject: |
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Well, this is INDEED a bug within cpufreqd....
Try booting with AC and no BATT plugged in.
Although the system should use it's hyperpower, it uses a 316Mhz ultra-fast-cpu 
Funny, isn't it?
Cheers,
Phk
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feivelda
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Joined: 21 Feb 2005
Posts: 480
Location: Frankfurt, Germany
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| Posted: Mon Nov 21, 2005 9:08 am Post subject: |
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If the cpu is getting to hot, it automatically slows down the cpu
Look at the etc/cpufreqd.conf and post this file as well as an output from cpufreq-info
Cpufreqd works not like other frequency tools. It uses the kernel internal mechanism to set the cpuspeed and the kernel intern govenors. For my own opinion this is a good behavior, but I know other daemons ( I think powernow ) which have an own implementation to scale the cpu. |
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toralf
Developer
Joined: 01 Feb 2004
Posts: 3943
Location: Hamburg
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| Posted: Mon Nov 21, 2005 1:25 pm Post subject: |
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| Why you use an external tool instead of the well-working internal kernel governor 'ondemand' ? What is the advantage of cpufreqd compared to the feature of newer kernels ? |
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Phk
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Joined: 02 Feb 2004
Posts: 428
Location: [undef], Lisbon, Portugal, Europe, Earth, SolarSystem, MilkyWay, 23Q Radius, Forward Time
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| Posted: Mon Nov 21, 2005 10:42 pm Post subject: |
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| toralf wrote: | | Why you use an external tool instead of the well-working internal kernel governor 'ondemand' ? What is the advantage of cpufreqd compared to the feature of newer kernels ? |
Sorry but i couldn't understand you. What Internal Kernel Feature?! I have a P4 (not a normal scalable centrino), and i can only downclock my CPU if i use CPUFreqDaemon.
| feivelda wrote: | | If the cpu is getting to hot, it automatically slows down the cpu |
Don't worry, i'm too careful with temps and voltages O\C addiction has taken me
This IS a CpuFREQd bug. I haven't configured the /etc/cpufreqd.conf, although i've look at it and everything seemed fine.
Try this:
with a P4 Mobile (2.5Ghz normally) plug the AC cable, unplug the battery, and boot with CPUfreqD at boot
then report it back
Thanks,
Phk
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feivelda
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Joined: 21 Feb 2005
Posts: 480
Location: Frankfurt, Germany
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| Posted: Tue Nov 22, 2005 1:55 pm Post subject: |
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I have a 1.6 GHz P4 Mobile
I load cpufreqd in the default runlevel and have the speedstep_ich and p4-clockmod as modules ( For some scripts, first setting the voltage and then the frequency  )
At my place all is running fine |
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