OS11.3 on ThinkpadT61 Intel Core2 CPU - Power Management Reports "no scaling capability"


In exploring various settings to get my suspend key working I cam across the power management settings, and in there under the Capabilities page, it says my cpu(s) do not support frequency scaling.

In fact they do, so something is going wrong with the startup. The module I’ve used in the past is acpi-cpufreq and a quick lsmod | grep shows that it is indeed loaded.

A cat of /sys/devices/system/cpu/cpufreq shows the current governor is ondemand.

And finally, a cat of /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies shows the correct steps of between 800,000 and 1,800,000. The same shows for cpu1.

In looking at the cpu usage via the system monitoring widget, I see that CPU1 is pegged at 100% nonstop, while cpu- is scaling appropriately.

Running top in konsole shows something called “npviewer.bin” taking up 99% of the cpu. Non stop. So I kill that and things go back to normal. But the question still remains,

Why is the powermanagement not showing my cpu supporting scaling, and is there anything that can be done about it? Second, what is npviewer.bin and is it safe to kill if it gets out of control again?


“npviewer.bin” is netscape plugin viewer used in conjunction with 64bit with Flash (Firefox) and nspluginwrapper. A cpu hog. :wink: