cpu frequency scale not working

raphiusks · n00b Joined: 17 Sep 2010 Posts: 19

Hi,

I recently changed my 2.2ghz core2duo to a 2.8ghz core2duo (E7400)..
I have no idea why, tried lots of different combination on acpi kernel settings after it refused to run, but just can't get cpufreqscaling launch to run anymore. There's nothing on dmesg that could help..

I have emerged cpufrequtils, and i get the following message:

insane log # 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: 4294.55 ms.
analyzing CPU 1:
no or unknown cpufreq driver is active on this CPU
maximum transition latency: 4294.55 ms.

As far as i've been able to find (read Wiki, other users posts on forum, Intel's specs to this processor,...) theres nothing that makes me believe that it has any difference would keep cpufreq from running.

Output from cat on .config for acpi and cpu:

CPU:
# CPU Frequency scaling
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
# CONFIG_CPU_FREQ_DEBUG is not set
CONFIG_CPU_FREQ_STAT=y
# CONFIG_CPU_FREQ_STAT_DETAILS is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE 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_PCC_CPUFREQ is not set
CONFIG_X86_ACPI_CPUFREQ=y
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y

acpi:
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_PROCESSOR_AGGREGATOR=m
CONFIG_ACPI_THERMAL=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
# CONFIG_ACPI_CUSTOM_OVERRIDE_INITRAMFS is not set
CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_PCI_SLOT=y
# CONFIG_ACPI_CONTAINER is not set
# CONFIG_ACPI_SBS is not set
# CONFIG_ACPI_HED is not set
# CONFIG_ACPI_APEI is not set
CONFIG_X86_ACPI_CPUFREQ=y
# CONFIG_HOTPLUG_PCI_ACPI is not set
CONFIG_PNPACPI=y
CONFIG_ATA_ACPI=y

insane log # uname -a
Linux insane 2.6.35-zen3+ #17 ZEN SMP PREEMPT Sun Oct 3 11:03:40 FNT 2010 x86_64 Intel(R) Core(TM)2 CPU E7400 @ 2.80GHz GenuineIntel GNU/Linux

thanks anyone who can help me out.

albright · Posted: Thu Oct 07, 2010 12:12 am Post subject:

what are the values of

/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
/sys/devices/system/cpu/cpu0/cpufreq/scaling_max[min]_freq
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies

I've found sometimes these are not properly setup
_________________
.... there is nothing - absolutely nothing - half so much worth
doing as simply messing about with Linux ...
(apologies to Kenneth Graeme)

raphiusks · n00b Joined: 17 Sep 2010 Posts: 19

hi albright,

It seems i do not have those files..

insane log # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
cat: /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor: No such file or directory
insane log # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max[min]_freq
cat: /sys/devices/system/cpu/cpu0/cpufreq/scaling_max[min]_freq: No such file or directory
insane log # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
cat: /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies: No such file or directory

Inside cpu0 folder i've got only:

insane log # ls /sys/devices/system/cpu/cpu0/
cache microcode thermal_throttle topology

that's gotta mean something.. and i feel its not good :cry:

albright · Posted: Thu Oct 07, 2010 10:00 pm Post subject:

well ... it looks like cpufreqd is not running. Try /etc/init.d/cpufreqd start;
maybe there is a module problem. Is acpi-cpufreq loaded?
_________________
.... there is nothing - absolutely nothing - half so much worth
doing as simply messing about with Linux ...
(apologies to Kenneth Graeme)

raphiusks · n00b Joined: 17 Sep 2010 Posts: 19

hi albright..

I never had cpufreqd installed and i could get cpu freq applet on gnome to work anyways
But to test it, i emerged it and tried to start but i got the following error:

insane raphael # /etc/init.d/cpufreqd start
* Caching service dependencies ... [ ok ]
* cpufreqd requires the kernel to be configured with CONFIG_CPU_FREQ
* Make sure that the appropiate kernel drivers for your CPU are
* built-in or loaded.
* ERROR: cpufreqd failed to start

But..

insane raphael # cat /usr/src/zen.git/.config | grep CONFIG_CPU_FREQ
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
# CONFIG_CPU_FREQ_DEBUG is not set
CONFIG_CPU_FREQ_STAT=y
# CONFIG_CPU_FREQ_STAT_DETAILS is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE 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

So yeah, im lost. It seems i`ve built my kernel as its supposed to, but somehow it can`t detect that it does support cpu freq scaling...
I can modprobe acpi_cpufreq normally tho.

Thanks for helping out.

albright · Posted: Fri Oct 08, 2010 1:14 pm Post subject:

this is getting confusing ...

so *after* loading acpi-cpufreq module you still get the error
when you try to start cpurfreqd? What's the output of
uname -a?
_________________
.... there is nothing - absolutely nothing - half so much worth
doing as simply messing about with Linux ...
(apologies to Kenneth Graeme)

raphiusks · n00b Joined: 17 Sep 2010 Posts: 19

hi albright,

sorry for not replying earlier but i had to travel for a few days.

yes, i could modprobe acpi-cpufreq normally without errors, but was unable to start cpufreqd.. now it changed

here is what i did to give it a try:

i completely removed cpufreq support on the kernel and used it for a while w/o it..
yesterday i recompiled it back with cpufreq support and now i get a new error message:

insane / # modprobe acpi-cpufreq
FATAL: Error inserting acpi_cpufreq (/lib/modules/2.6.35-zen3+/kernel/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.ko): No such device

althought:
insane / # ls /lib/modules/2.6.35-zen3+/kernel/arch/x86/kernel/cpu/cpufreq/
acpi-cpufreq.ko mperf.ko pcc-cpufreq.ko

of course when i try to start cpufreqd it gives me the same error:
insane / # /etc/init.d/cpufreqd start
* cpufreqd requires the kernel to be configured with CONFIG_CPU_FREQ
* Make sure that the appropiate kernel drivers for your CPU are
* built-in or loaded.
* ERROR: cpufreqd failed to start

this is the output:
insane / # uname -a
Linux insane 2.6.35-zen3+ #22 ZEN SMP PREEMPT Thu Oct 14 20:35:03 FNT 2010 x86_64 Intel(R) Core(TM)2 CPU E7400 @ 2.80GHz GenuineIntel GNU/Linux

let me know if you need extra infos.. thanks again

albright · Posted: Sat Oct 16, 2010 3:28 pm Post subject:

it's weird; what is the output of

grep FREQ /usr/src/linux/.config

( mine is:

raphiusks · n00b Joined: 17 Sep 2010 Posts: 19

insane raphael # grep FREQ /usr/src/linux/.config
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
# CONFIG_CPU_FREQ_DEBUG is not set
CONFIG_CPU_FREQ_STAT=y
# CONFIG_CPU_FREQ_STAT_DETAILS is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE 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
# CONFIG_X86_PCC_CPUFREQ is not set
CONFIG_X86_ACPI_CPUFREQ=y

trying a different kernel version now..
insane raphael # uname -a
Linux insane 2.6.35-gentoo-r10 #1 SMP PREEMPT Sat Oct 16 14:21:23 FNT 2010 x86_64 Intel(R) Core(TM)2 CPU E7400 @ 2.80GHz GenuineIntel GNU/Linux

i also found an error on my X log, about acpid.socket not opened.. i`ve added it to boot runlevel and the error is gone, tho im still unable to get cpufreq to work, keeps on complaining about kernel support..

insane raphael # /etc/init.d/cpufreqd start
* cpufreqd requires the kernel to be configured with CONFIG_CPU_FREQ
* Make sure that the appropiate kernel drivers for your CPU are
* built-in or loaded.
* ERROR: cpufreqd failed to start

i wish i could get it off my head and move on to another subject, but things not working pizz me off! specially when it really seems that i got everything configured the right way

ssteinberg · Apprentice Joined: 09 Jul 2010 Posts: 206 Location: Israel

Do this:
gzip -dc /proc/config.gz | grep FREQ

albright · Posted: Sat Oct 16, 2010 6:16 pm Post subject:

you have acpi-cpufreq built in - try to build it as
a module; you never know it might work this time

_________________
.... there is nothing - absolutely nothing - half so much worth
doing as simply messing about with Linux ...
(apologies to Kenneth Graeme)

raphiusks · n00b Joined: 17 Sep 2010 Posts: 19

insane ~ # modprobe acpi-cpufreq (after compiling as a module)
FATAL: Error inserting acpi_cpufreq (/lib/modules/2.6.35-gentoo-r10/kernel/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.ko): Invalid module format

insane ~ # gzip -dc /proc/config.gz | grep FREQ
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
# CONFIG_CPU_FREQ_DEBUG is not set
CONFIG_CPU_FREQ_STAT=y
# CONFIG_CPU_FREQ_STAT_DETAILS is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE 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
# CONFIG_X86_PCC_CPUFREQ is not set
CONFIG_X86_ACPI_CPUFREQ=y

ssteinberg · Apprentice Joined: 09 Jul 2010 Posts: 206 Location: Israel

Post full dmesg output please.

albright · Posted: Sun Oct 17, 2010 6:57 pm Post subject:

something is messed up with the kernels your using;

notice that /proc/config.gz still thinks acpi-cpufreq is
built in, NOT a module. Looks like you're trying to insert
a module built for a different kernel than the one you're
running ... (or something like that)
_________________
.... there is nothing - absolutely nothing - half so much worth
doing as simply messing about with Linux ...
(apologies to Kenneth Graeme)

albatroz · Posted: Tue Dec 14, 2010 10:08 pm Post subject:

Hi, I'm have this same problem, have you found any solution?

All the issues you have discribed I'm also having.

fidel · Guru Joined: 16 Jul 2004 Posts: 407 Location: CH

Has anybody found a solution to this yet? I as well get this error. I guess its a bug in this kernel version:

fidel · Guru Joined: 16 Jul 2004 Posts: 407 Location: CH

Ok, in my case the problem were the bios settings! Frequency scaling - Intel Enhanced Speedstep was disabled, so I needed to enable it and the device now appears. I now remember why having this set, enabling states (c2,c3...) at the same time causes the machine to suddenly power off. I didn't figure out that just enabling speedstep without enabling states seems to work fine, the machine hasn't powered off so far :-)

So everythings fine for me.

phd · Posted: Mon Mar 28, 2011 9:09 pm Post subject:

I have similar problem, and similar options setup in the kernel. But in my case (Aptio Setup Utility 2007, Vaio VGN-SR29VN) there is no section in the bios I could switch on an Intel speedstep. In the bios the following sections are available only: Main - I can set up time and date only; Security - hard disk passwd, TPM state, clear fingerprint data; Boot; Exit.
How can I force the bios in Vaio to control cpu speed?

fidel · Guru Joined: 16 Jul 2004 Posts: 407 Location: CH

Most probably (hopefully) your hardware has speedstepping already enabled. What exactly are the errors you get? Whereas raphiusks had a problem with the kernel(s), my problem was the bios settings. In order to find out, what your problem is, tell us, what

phd · Posted: Tue Mar 29, 2011 8:24 am Post subject:

After loading acpi-cpufreq I had got
zgrep -i freq /proc/config.gz
gzip: /proc/config.gz: No such file or directory

Fortunately, cpufreq-info gave