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Mazuego
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PostPosted: Fri Mar 31, 2006 9:10 am    Post subject: ACPI question Reply with quote

Hi all
I've a AMD4000+SanDiego on an Asus A8n-Sli Premium. I've installed cpudyn as it's described in "How do I use Cool'n'Quiet/Powernow features?" guide. During boot, I have this message "ACPI throttling support found, but hardware doesn't support it". Could you explain me the problem? How can I fix it? Thank you very much!
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XenoTerraCide
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PostPosted: Fri Mar 31, 2006 12:24 pm    Post subject: Reply with quote

I'm gonna guess your computer is a desktop? my guess is powernow only works for laptops... I could be wrong, I'm not sure. I haven't read the guide though.
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Mazuego
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Joined: 18 Oct 2004
Posts: 110

PostPosted: Fri Mar 31, 2006 12:45 pm    Post subject: Reply with quote

XenoTerraCide wrote:
I'm gonna guess your computer is a desktop? my guess is powernow only works for laptops... I could be wrong, I'm not sure. I haven't read the guide though.


Yes is a desktop! If you are right, what do I have to do? Uninstall cpudyn?
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XenoTerraCide
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PostPosted: Fri Mar 31, 2006 1:10 pm    Post subject: Reply with quote

probably... and turn off powernow and such in the kernel. I'm not entirely sure still haven't looked at the wiki thread. The real use for things like powernow is to conserve battery power on laptops. Basically undo everything you did in the walkthrough on the wiki should do it.
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Sadako
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PostPosted: Sat Apr 01, 2006 2:15 pm    Post subject: Reply with quote

I have an athlon64 3200+ (in a desktop machine), and have powernow/cool'n'quiet working perfectly.

Is the error message you posted from the kernel itself, or from cpudyn?

Some things to try;
  • Try powernowd instead of cpudyn, works nicely here
  • Check to see if your motherboard supports cool'n'quiet (and check for any bios updates)
  • The error sounds like a miss-configured kernel (I don't think you should be using ACPI throttling)
    If you could post the relevant sections of your kernel config file
    (mostly the "CPU Frequency scaling" and "CPUFreq processor drivers" sections),
    I might be able to help.

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Mazuego
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PostPosted: Sat Apr 22, 2006 1:03 pm    Post subject: Reply with quote

Hopeless wrote:

Check to see if your motherboard supports cool'n'quiet (and check for any bios updates)
The error sounds like a miss-configured kernel (I don't think you should be using ACPI throttling)
If you could post the relevant sections of your kernel config file
(mostly the "CPU Frequency scaling" and "CPUFreq processor drivers" sections),
I might be able to help.[/list]


The motheroboard is the last Asus A8N-Sli Premium with the last bios update. My kernel configuration is this
Code:
#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
CONFIG_CPU_FREQ_DEBUG=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_STAT_DETAILS=y
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=y

#
# CPUFreq processor drivers
#
CONFIG_X86_POWERNOW_K8=y
CONFIG_X86_POWERNOW_K8_ACPI=y
CONFIG_X86_SPEEDSTEP_CENTRINO=y
CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI=y
CONFIG_X86_ACPI_CPUFREQ=y


Thank you for the help!
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Sadako
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PostPosted: Mon Apr 24, 2006 3:47 am    Post subject: Reply with quote

Here's mine;
Code:
#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
# CONFIG_CPU_FREQ_DEBUG is not set
# CONFIG_CPU_FREQ_STAT is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
# CONFIG_CPU_FREQ_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
CONFIG_CPU_FREQ_GOV_USERSPACE=y
# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set

#
# CPUFreq processor drivers
#
CONFIG_X86_POWERNOW_K8=y
CONFIG_X86_POWERNOW_K8_ACPI=y
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
# CONFIG_X86_ACPI_CPUFREQ is not set

#
# shared options
#
# CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
# CONFIG_X86_SPEEDSTEP_LIB is not set


First of all, I'm pretty sure the userspace governor needs to be used for either cpudyn or powernowd to do their thing, you should be able to set it from your running kernel with "echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor".

You should also get rid of the speedstep/centrino and acpi cpufreq drivers.

Let me know if this helps.
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