Comment 17 for bug 88899

Revision history for this message
MarkBrier (mark-brier) wrote :

This occurs on my Thinkpad x31 Pentium-M 1.6GHz

After a hibernate resume cycle, the processor will not go above 1GHz. The option to go above 1GHz is still shown but doesn't work. After a reboot or a cold boot everything works as it should (i.e. upto 1.6GHz)

mark@thinkpad:~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 9
model name : Intel(R) Pentium(R) M processor 1600MHz
stepping : 5
cpu MHz : 1000.000
[snip]...

mark@thinkpad:~$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
600000 800000 1000000 1200000 1400000 1600000

mark@thinkpad:~$ cpufreq-info
cpufrequtils 002: cpufreq-info (C) Dominik Brodowski 2004-2006
Report errors and bugs to <email address hidden>, please.
analyzing CPU 0:
  driver: centrino
  CPUs which need to switch frequency at the same time: 0
  hardware limits: 600 MHz - 1.60 GHz
  available frequency steps: 600 MHz, 800 MHz, 1000 MHz, 1.20 GHz, 1.40 GHz, 1.60 GHz
  available cpufreq governors: conservative, userspace, ondemand, powersave, performance
  current policy: frequency should be within 600 MHz and 1000 MHz.
                  The governor "performance" may decide which speed to use
                  within this range.
  current CPU frequency is 1000 MHz.

mark@thinkpad:~$ sudo cpufreq-set -f 1600000
mark@thinkpad:~$ cpufreq-info -f
1000000

mark@thinkpad:~$ uname -r
2.6.20-16-generic