Me again.
I noticed that after plugin in the laptop and running `cpufreq-info` I
get:
-=-=-
$ cpufreq-info
cpufrequtils 008: 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 1 2 3
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 2.80 GHz
available frequency steps: 2.80 GHz, 2.80 GHz, 2.60 GHz, 2.40 GHz, 2.20 GHz,
2.00 GHz, 1.80 GHz, 1.60 GHz, 1.40 GHz, 1.20 GHz, 1000 MHz, 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: 2.80 GHz:0.00%, 2.80 GHz:0.00%, 2.60 GHz:0.00%, 2.40
GHz:0.00%, 2.20 GHz:0.00%, 2.00 GHz:0.00%, 1.80 GHz:0.00%, 1.60 GHz:0.00%, 1.40
GHz:0.00%, 1.20 GHz:0.00%, 1000 MHz:0.00%, 800 MHz:100.00%
analyzing CPU 1:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1 2 3
CPUs which need to have their frequency coordinated by software: 1
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 2.80 GHz
available frequency steps: 2.80 GHz, 2.80 GHz, 2.60 GHz, 2.40 GHz, 2.20 GHz,
2.00 GHz, 1.80 GHz, 1.60 GHz, 1.40 GHz, 1.20 GHz, 1000 MHz, 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: 2.80 GHz:0.00%, 2.80 GHz:0.00%, 2.60 GHz:0.00%, 2.40
GHz:0.00%, 2.20 GHz:0.00%, 2.00 GHz:0.00%, 1.80 GHz:0.00%, 1.60 GHz:0.00%, 1.40
GHz:0.00%, 1.20 GHz:0.00%, 1000 MHz:0.00%, 800 MHz:100.00%
analyzing CPU 2:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1 2 3
CPUs which need to have their frequency coordinated by software: 2
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 2.80 GHz
available frequency steps: 2.80 GHz, 2.80 GHz, 2.60 GHz, 2.40 GHz, 2.20 GHz,
2.00 GHz, 1.80 GHz, 1.60 GHz, 1.40 GHz, 1.20 GHz, 1000 MHz, 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: 2.80 GHz:0.00%, 2.80 GHz:0.00%, 2.60 GHz:0.00%, 2.40
GHz:0.00%, 2.20 GHz:0.00%, 2.00 GHz:0.00%, 1.80 GHz:0.00%, 1.60 GHz:0.00%, 1.40
GHz:0.00%, 1.20 GHz:0.00%, 1000 MHz:0.00%, 800 MHz:100.00%
analyzing CPU 3:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1 2 3
CPUs which need to have their frequency coordinated by software: 3
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 2.80 GHz
available frequency steps: 2.80 GHz, 2.80 GHz, 2.60 GHz, 2.40 GHz, 2.20 GHz,
2.00 GHz, 1.80 GHz, 1.60 GHz, 1.40 GHz, 1.20 GHz, 1000 MHz, 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: 2.80 GHz:0.00%, 2.80 GHz:0.00%, 2.60 GHz:0.00%, 2.40
GHz:0.00%, 2.20 GHz:0.00%, 2.00 GHz:0.00%, 1.80 GHz:0.00%, 1.60 GHz:0.00%, 1.40
GHz:0.00%, 1.20 GHz:0.00%, 1000 MHz:0.00%, 800 MHz:100.00%
-=-=-
The important line (repeated several times) is: "current policy:
frequency should be within 800 MHz and 800 MHz."
If I unplug the computer and run the same command I get:
-=-=-
$ cpufreq-info
cpufrequtils 008: 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 1 2 3
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 2.80 GHz
available frequency steps: 2.80 GHz, 2.80 GHz, 2.60 GHz, 2.40 GHz, 2.20 GHz,
2.00 GHz, 1.80 GHz, 1.60 GHz, 1.40 GHz, 1.20 GHz, 1000 MHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 800 MHz and 2.80 GHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 800 MHz.
cpufreq stats: 2.80 GHz:0.02%, 2.80 GHz:0.00%, 2.60 GHz:0.01%, 2.40
GHz:0.00%, 2.20 GHz:0.00%, 2.00 GHz:0.00%, 1.80 GHz:0.00%, 1.60 GHz:0.00%, 1.40
GHz:0.00%, 1.20 GHz:0.00%, 1000 MHz:0.00%, 800 MHz:99.96% (47)
analyzing CPU 1:
[... snip ...]
-=-=-
I.E. "current policy: frequency should be within 800 MHz and 2.80 GHz."
I'm really having doubts that this has anything to do with the
battery...
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https://bugs.launchpad.net/bugs/962712
Title:
Battery charging slows down my thinkpad severely
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