Ubuntu – Indicator-cpufreq always shows only one bar on Ubuntu 14.10

cpufreqindicatorintel-cpuunity

On Ubuntu 14.10 the indicator-cpufreq always shows only one bar. I can switch between Performance and Powersave but the indicator icon never changes. It always shows only the one most bottom bar. I have switched to Performance, but even when compiling large projects, the indicator does not change.

What does this mean? Is my CPU running on low speed all the time? Or is it a bug with the indicator?

lshw shows: Intel(R) Core(TM) i7-4800MQ CPU @ 2.70GHz

Best Answer

You are running by default, the Intel Pstate system in Ubuntu 14.10. To use the older ACPI method, you need to edit the grub file and reboot:

Open a terminal alt+ctrl+t and enter the folowing lines:

sudo cp /etc/default/grub /etc/default/grub.backup

sudo nano /etc/default/grub

In the Nano editor, look for the line beginning with GRUB_CMDLINE_LINUX_DEFAULT At the end of the line add intel_pstate=disable The whole line shoud now look like this

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_pstate=disable"

press the keys ctrl+o to write the file, and ctrl+x to exit Nano. Then in the terminal, enter the following command to update Grub

sudo update-grub

You should now reboot your computer, and find that you are able to set the governors as you did in 14.04

This answer has been taken from here.

Additionally, the indicator will crash upon startup if the BIOS setting for "SpeedStep" is disabled. To fix this, go into your BIOS settings and enable "SpeedStep".

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