Seems to me that the /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq file is set incorrectly to the highest value.
Hope the below is of use.
---
mark@titanic:~$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
2793000 2660000 2527000 2394000 2261000 2128000 1995000 1862000 1729000 1596000 1463000 1330000 1197000
mark@titanic:~$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
2793000 *********** wrong. Should be the lowest value - 1197000 for me ***********
mark@titanic:~$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
2793000
uname -a:
Linux titanic 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 x86_64 GNU/Linux
cpufreq-info:
cpufrequtils 005: cpufreq-info (C) Dominik Brodowski 2004-2006
Report errors and bugs to <email address hidden>, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 0
hardware limits: 1.20 GHz - 2.79 GHz
available frequency steps: 2.79 GHz, 2.66 GHz, 2.53 GHz, 2.39 GHz, 2.26 GHz, 2.13 GHz, 2.00 GHz, 1.86 GHz, 1.73 GHz, 1.60 GHz, 1.46 GHz, 1.33 GHz, 1.20 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 2.79 GHz and 2.79 GHz. The governor "ondemand" may decide which speed to use within this range.
current CPU frequency is 2.79 GHz.
cpufreq stats: 2.79 GHz:100.00%, 2.66 GHz:0.00%, 2.53 GHz:0.00%, 2.39 GHz:0.00%, 2.26 GHz:0.00%, 2.13 GHz:0.00%, 2.00 GHz:0.00%, 1.86 GHz:0.00%, 1.73 GHz:0.00%, 1.60 GHz:0.00%, 1.46 GHz:0.00%, 1.33 GHz:0.00%, 1.20 GHz:0.00%
analyzing CPU 1:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 1
hardware limits: 1.20 GHz - 2.79 GHz
available frequency steps: 2.79 GHz, 2.66 GHz, 2.53 GHz, 2.39 GHz, 2.26 GHz, 2.13 GHz, 2.00 GHz, 1.86 GHz, 1.73 GHz, 1.60 GHz, 1.46 GHz, 1.33 GHz, 1.20 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 2.79 GHz and 2.79 GHz. The governor "ondemand" may decide which speed to use within this range.
current CPU frequency is 2.79 GHz.
cpufreq stats: 2.79 GHz:99.94%, 2.66 GHz:0.00%, 2.53 GHz:0.00%, 2.39 GHz:0.00%, 2.26 GHz:0.00%, 2.13 GHz:0.00%, 2.00 GHz:0.00%, 1.86 GHz:0.00%, 1.73 GHz:0.00%, 1.60 GHz:0.00%, 1.46 GHz:0.00%, 1.33 GHz:0.00%, 1.20 GHz:0.06% (2)
analyzing CPU 2:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 2
hardware limits: 1.20 GHz - 2.79 GHz
available frequency steps: 2.79 GHz, 2.66 GHz, 2.53 GHz, 2.39 GHz, 2.26 GHz, 2.13 GHz, 2.00 GHz, 1.86 GHz, 1.73 GHz, 1.60 GHz, 1.46 GHz, 1.33 GHz, 1.20 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 2.79 GHz and 2.79 GHz. The governor "ondemand" may decide which speed to use within this range.
current CPU frequency is 2.79 GHz.
cpufreq stats: 2.79 GHz:99.94%, 2.66 GHz:0.00%, 2.53 GHz:0.00%, 2.39 GHz:0.00%, 2.26 GHz:0.00%, 2.13 GHz:0.00%, 2.00 GHz:0.00%, 1.86 GHz:0.00%, 1.73 GHz:0.00%, 1.60 GHz:0.00%, 1.46 GHz:0.00%, 1.33 GHz:0.00%, 1.20 GHz:0.06% (2)
analyzing CPU 3:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 3
hardware limits: 1.20 GHz - 2.79 GHz
available frequency steps: 2.79 GHz, 2.66 GHz, 2.53 GHz, 2.39 GHz, 2.26 GHz, 2.13 GHz, 2.00 GHz, 1.86 GHz, 1.73 GHz, 1.60 GHz, 1.46 GHz, 1.33 GHz, 1.20 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 2.79 GHz and 2.79 GHz. The governor "ondemand" may decide which speed to use within this range.
current CPU frequency is 2.79 GHz.
cpufreq stats: 2.79 GHz:99.94%, 2.66 GHz:0.00%, 2.53 GHz:0.00%, 2.39 GHz:0.00%, 2.26 GHz:0.00%, 2.13 GHz:0.00%, 2.00 GHz:0.00%, 1.86 GHz:0.00%, 1.73 GHz:0.00%, 1.60 GHz:0.00%, 1.46 GHz:0.00%, 1.33 GHz:0.00%, 1.20 GHz:0.06% (9)
Hi,
I am getting the same issue.
Seems to me that the /sys/devices/ system/ cpu/cpu0/ cpufreq/ scaling_ min_freq file is set incorrectly to the highest value.
Hope the below is of use.
---
mark@titanic:~$ cat /sys/devices/ system/ cpu/cpu0/ cpufreq/ scaling_ available_ frequencies system/ cpu/cpu0/ cpufreq/ scaling_ min_freq system/ cpu/cpu0/ cpufreq/ scaling_ max_freq
2793000 2660000 2527000 2394000 2261000 2128000 1995000 1862000 1729000 1596000 1463000 1330000 1197000
mark@titanic:~$ cat /sys/devices/
2793000 *********** wrong. Should be the lowest value - 1197000 for me ***********
mark@titanic:~$ cat /sys/devices/
2793000
uname -a:
Linux titanic 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 x86_64 GNU/Linux
cpufreq-info:
The governor "ondemand" may decide which speed to use
within this range.
The governor "ondemand" may decide which speed to use
within this range.
The governor "ondemand" may decide which speed to use
within this range.
The governor "ondemand" may decide which speed to use
within this range.
cpufrequtils 005: cpufreq-info (C) Dominik Brodowski 2004-2006
Report errors and bugs to <email address hidden>, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 0
hardware limits: 1.20 GHz - 2.79 GHz
available frequency steps: 2.79 GHz, 2.66 GHz, 2.53 GHz, 2.39 GHz, 2.26 GHz, 2.13 GHz, 2.00 GHz, 1.86 GHz, 1.73 GHz, 1.60 GHz, 1.46 GHz, 1.33 GHz, 1.20 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 2.79 GHz and 2.79 GHz.
current CPU frequency is 2.79 GHz.
cpufreq stats: 2.79 GHz:100.00%, 2.66 GHz:0.00%, 2.53 GHz:0.00%, 2.39 GHz:0.00%, 2.26 GHz:0.00%, 2.13 GHz:0.00%, 2.00 GHz:0.00%, 1.86 GHz:0.00%, 1.73 GHz:0.00%, 1.60 GHz:0.00%, 1.46 GHz:0.00%, 1.33 GHz:0.00%, 1.20 GHz:0.00%
analyzing CPU 1:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 1
hardware limits: 1.20 GHz - 2.79 GHz
available frequency steps: 2.79 GHz, 2.66 GHz, 2.53 GHz, 2.39 GHz, 2.26 GHz, 2.13 GHz, 2.00 GHz, 1.86 GHz, 1.73 GHz, 1.60 GHz, 1.46 GHz, 1.33 GHz, 1.20 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 2.79 GHz and 2.79 GHz.
current CPU frequency is 2.79 GHz.
cpufreq stats: 2.79 GHz:99.94%, 2.66 GHz:0.00%, 2.53 GHz:0.00%, 2.39 GHz:0.00%, 2.26 GHz:0.00%, 2.13 GHz:0.00%, 2.00 GHz:0.00%, 1.86 GHz:0.00%, 1.73 GHz:0.00%, 1.60 GHz:0.00%, 1.46 GHz:0.00%, 1.33 GHz:0.00%, 1.20 GHz:0.06% (2)
analyzing CPU 2:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 2
hardware limits: 1.20 GHz - 2.79 GHz
available frequency steps: 2.79 GHz, 2.66 GHz, 2.53 GHz, 2.39 GHz, 2.26 GHz, 2.13 GHz, 2.00 GHz, 1.86 GHz, 1.73 GHz, 1.60 GHz, 1.46 GHz, 1.33 GHz, 1.20 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 2.79 GHz and 2.79 GHz.
current CPU frequency is 2.79 GHz.
cpufreq stats: 2.79 GHz:99.94%, 2.66 GHz:0.00%, 2.53 GHz:0.00%, 2.39 GHz:0.00%, 2.26 GHz:0.00%, 2.13 GHz:0.00%, 2.00 GHz:0.00%, 1.86 GHz:0.00%, 1.73 GHz:0.00%, 1.60 GHz:0.00%, 1.46 GHz:0.00%, 1.33 GHz:0.00%, 1.20 GHz:0.06% (2)
analyzing CPU 3:
driver: acpi-cpufreq
CPUs which need to switch frequency at the same time: 3
hardware limits: 1.20 GHz - 2.79 GHz
available frequency steps: 2.79 GHz, 2.66 GHz, 2.53 GHz, 2.39 GHz, 2.26 GHz, 2.13 GHz, 2.00 GHz, 1.86 GHz, 1.73 GHz, 1.60 GHz, 1.46 GHz, 1.33 GHz, 1.20 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 2.79 GHz and 2.79 GHz.
current CPU frequency is 2.79 GHz.
cpufreq stats: 2.79 GHz:99.94%, 2.66 GHz:0.00%, 2.53 GHz:0.00%, 2.39 GHz:0.00%, 2.26 GHz:0.00%, 2.13 GHz:0.00%, 2.00 GHz:0.00%, 1.86 GHz:0.00%, 1.73 GHz:0.00%, 1.60 GHz:0.00%, 1.46 GHz:0.00%, 1.33 GHz:0.00%, 1.20 GHz:0.06% (9)
Happy to provide further info if requested.
MG