Public bug reported:
Thread link: https://answers.launchpad.net/ubuntu/+source/acpi/+question/143039
I installed the applet as I suspected my CPU was at half speed.
When I first start the computer it works correctly and then for no apparent
reason the governor switches the max speed down to 800MHz and it will not
increase it later. The fan doesn't come on so I do not think it is because the
CPU is hot.
I have attached the info below.
Every day after about 15min of starting the computer up the governor will
change the text from:
current policy: frequency should be within 800 MHz and 1.73 GHz.
current policy: frequency should be within 800 MHz and 800 MHz.
It then remains at 800Mhz for the rest of the time the computer is on.
[code]
j@j-Inspiron-9300:~$ date
Thu Jan 27 09:05:41 CET 2011
j@j-Inspiron-9300:~$ cpufreq-info
cpufrequtils 007: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 1.73 GHz
available frequency steps: 1.73 GHz, 1.33 GHz, 1.07 GHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 800 MHz and 1.73 GHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 1.73 GHz.
cpufreq stats: 1.73 GHz:18.10%, 1.33 GHz:1.19%, 1.07 GHz:0.59%, 800
MHz:80.12% (9055)
j@j-Inspiron-9300:~$ date
Thu Jan 27 09:20:23 CET 2011
j@j-Inspiron-9300:~$ cpufreq-info
cpufrequtils 007: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 1.73 GHz
available frequency steps: 1.73 GHz, 1.33 GHz, 1.07 GHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 800 MHz and 800 MHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 800 MHz.
cpufreq stats: 1.73 GHz:24.51%, 1.33 GHz:3.24%, 1.07 GHz:1.13%, 800
MHz:71.13% (28892)
[/code]
** Affects: acpi (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/709390
Title:
CPU governor changes speed to minimum only
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