Missing Cpufreq folders and content

[sconarid]

I've recently upgraded to fedora 18, from 17, and with 17 I was able set my cpu frequency scaling governors with a simple script. I recently tried to run the script to set my cpu to ondemand and I've discovered that the folders and scaling_governor files are no longer. The path to these had been : /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor.

When I run cpupower frequency-info I get:

analyzing CPU 0:
no or unknown cpufreq driver is active on this CPU
boost state support:
Supported: no
Active: no

Any ideas?
Thanks

[mikee]

I have fedora 18 and that program is working for me.
Maybe scour your dmesg output to see if a module is not loading?

I see stuff like this in mine:

[ 1.302700] ACPI: acpi_idle registered with cpuidle


[ 1.700949] powernow-k8: this CPU is not supported anymore, using acpi-cpufreq instead.
[ 1.702161] acpi-cpufreq: overriding BIOS provided _PSD data

Originally Posted by sconarid

I've recently upgraded to fedora 18, from 17, and with 17 I was able set my cpu frequency scaling governors with a simple script. I recently tried to run the script to set my cpu to ondemand and I've discovered that the folders and scaling_governor files are no longer. The path to these had been : /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor.

When I run cpupower frequency-info I get:



Any ideas?
Thanks

---------- Post added at 07:30 PM ---------- Previous post was at 07:29 PM ----------

Also, if you are using boot option noacpi, I bet that would mess it up.

---------- Post added at 07:41 PM ---------- Previous post was at 07:30 PM ----------

OR.....
CHECK IT OUT!!! (On a whim, I switched to overclocking my cpu, and cpupower didn't like that. The /sys directories are gone too.)

[root@math16-16 mejh]# cpupower frequency-info
analyzing CPU 0:
no or unknown cpufreq driver is active on this CPU
boost state support:
Supported: yes
Active: yes
Boost States: 1
Total States: 5
Pstate-Pb0: 3200MHz (boost state)
Pstate-P0: 2700MHz
Pstate-P1: 2000MHz
Pstate-P2: 1400MHz
Pstate-P3: 800MHz

[sconarid]

I get this from dmesg: ACPI: Invalid Power Resource to register!
Basically, I use to be able to set my cpus to performance for audio work and back to ondemand for general computer use. I'm not sure what has changed--besides the change from 17 to 18. I have the kernel-tools installed, so I am at a loss--no surprise there!

[mikee]

Did you change to overclocking?

[sconarid]

Originally Posted by mikee

Did you change to overclocking?

No. The only changes I've ever made regarding my cpu's were changing the scaling governor. Like I sad, they initially set to ondemand. I would change them to performance and back to ondemand, so they were never overclocked. What is strange is that the folders are missing. Something must have been lost during the upgrade. I upgraded shortly after release and today was the first time I've tried to change the scaling_governors.

[mikee]

Might be a kernel bug in the 3.7 series..
I have been poking around some..

---------- Post added at 08:28 PM ---------- Previous post was at 08:05 PM ----------

What kind of cpu is yours?

I just booted a 3.6 kernel on my F17 and it loads k8powenow instead of the acpi-cpufreq.
that is a difference.
k8 is am AMD thingy

[sconarid]

Originally Posted by mikee

Might be a kernel bug in the 3.7 series..
I have been poking around some..

---------- Post added at 08:28 PM ---------- Previous post was at 08:05 PM ----------

What kind of cpu is yours?

I just booted a 3.6 kernel on my F17 and it loads k8powenow instead of the acpi-cpufreq.
that is a difference.
k8 is am AMD thingy

I have intel e6800 dual core.
I have a 3.6.xx realtime kernel and when I booted into that all issues were the same--
I suppose it's not too big of a deal but I'd like to be able to switch the scaling_governors as before. When I read the fedora docs for 18 the cpufreq folders should be there. Somehow I'm seem to be missing the frequency driver. I'm having trouble tracking down a possible fix. I've tried various suggestions but nothing has thusfar worked.
Thanks, though, for the help. Maybe the next kernel update will solve the issue.

---------- Post added at 07:15 PM ---------- Previous post was at 06:45 PM ----------

Also:
when I look in /lib/modules/[kernel version]/kernel/arch/[architecture]/kernel/cpu/cpufreq/ there is no cpu directory or cpufreq directory there either.

when I run cpupower frequency-info --governors it states it's analyzing cpu0 and then immediately goes to the prompt.

[mikee]

Welcome to the bleeding edge!
It could be worth reporting as a bug, if it has not been already.