Xfce Wiki

Sub domains


Originally written by Thomas Schreck, this panel plugin shows information about the CPU governor and frequencies supported and used by your system. At the moment, changing any of these settings is not supported by this plugin but might be implemented in future releases.


From the configuration dialog, which is available by right-clicking on the panel widget, select the CPU which you want to monitor in the panel. Instead of showing values for a single CPU, you can alternatively choose minimum, average or maximum, which might make more sense on a multi-core system. If your system is using the Intel pstate driver, the current maximum will be chosen by default, as this is what other monitoring applications like i7z show as the current real performance.

The remaining options on the configuration dialog let you customize the panel widget layout and what data is shown on the panel.

The overview window can be accessed by left-clicking on the panel plugin widget, or from the context menu, similar to the configuration dialog. It shows detailed information for every CPU (core).

Known Issues

Help! I cannot change CPU frequency nor governor in the CPU information dialog

This is not a bug, though it might look like one because of the widgets used that pretentiously suggest the user could change something. Changing CPU frequency or the governor is not implemented and probably will never be, as it is supposed to be handled by the kernel or power manager. The only function this plugin nowadays performs is showing CPU frequency information. The CPU info dialog is a remnant of the past when it was still possible to change these settings (or at least when it was planned to implement this). It will be redesigned to use proper widgets in a future version. More information about this can be read in bug #3428.


Plugin in panel
CpuFreq in the Xfce Panel
The overview dialog
CpuFreq Overview dialog

The preference dialog
CpuFreq Preference dialog

Back To Top

Latest Release

1.2.1 (2018/09/02)


SHA-256 Hash: c5e044c0dc401d2066f208a3df82a588b3e51ff01425f155d0a1d0f8fce8f5b5
SHA-1 Hash: d16aba9c4d7b4752a4437fb097d755d59e8aa1fd
MD5 Hash: ccd8f0f7aef51bc4caf1049986d9614f

Release History

1.1.2 (2015-06-23)

  • Fix IT_PROG_INTLTOOL warning
  • Translation updates: Basque, Bulgarian, Greek, Lithuanian, Slovak, Spanish, Swedish

1.1.1 (2014-12-23)

  • Fix panel resizing caused by freq format function (bug #10385)
  • Various other widget layout fixes and simplifications
  • Fix missing return type of cpufreq_show_about (bug #10343)
  • Fix typo in panel-plugin/Makefile.am (bug #10332)
  • Various other fixes to the build system
  • Many translation updates

1.1.0 (2013-09-03)

  • Support the Intel performance state driver
  • Improve config dialog and make it use shortcut keys
  • Add a proper “About” dialog
  • Add min, avg and max frequencies in cpu selection
  • Add support for selecting a custom font
  • Support showing icon only (bug #7474)
  • Improve overview window size and layout
  • Remove code for showing the frame
  • Rewrite layout code using >=xfce4-panel-4.9 features
  • Remove code for deprecated APIs and <xfce4-panel-4.9
  • Build plugin as a module
  • Fix showing frequency of wrong CPU core (bug #7179)
  • Fix reading min frequency from cpufreq sysfs
  • Support panel 4.9 features (deskbar mode) (bug #8396)
  • Port plugin to libxfce4ui (bug #8051)
  • Code clean up and refactoring
  • Updates and fixes for build system files

1.0.0 (2011-01-23)

  • Fix support for xfce 4.8, fixing bug #6448
  • Linux 2.4 support
  • Translated in 33 languages
  • Make the plugin fully translatable, fixing bug #7016
  • Use ngettext for translatable strings with plurals
  • Rename cpu.png to xfce4-cpufreq-plugin
  • Adapt text to the panel's size and orientation
  • Use g_timeout_add_seconds for less wake-ups, fixing bug #5180
  • Warn once (and only once) about the lack of cpufreq support
  • Fix icon size in the panel
  • Remove the scalable icon, since it isn't real, fixing bug #2458
  • Use the right icon for the configuration dialog, fixing bug #6448
  • Various small bug fixes
  • Code clean up
  • Build fixes
  • Update the documentation

Back To Top

Recent Changes

Getting it

The normal (and best) way to get this plugin is to use the package manager or port system of your operating system.

If it isn't available there, or if you want a different version, you can download it in source form from http://archive.xfce.org/src/panel-plugins/xfce4-cpufreq-plugin/.

Source code repository

Reporting Bugs

If you encounter a bug in Cpufreq, please submit a bug report to the Xfce Bugzilla. Please note that to do this you will need to have / create an account on Bugzilla.

Before reporting a new bug, please try your best to check if it has already been reported (see the latest reports below). Click here for a full list of bug reports.

File a new bug or enhancement request

Open Bugs

Back To Top

Return to Main Xfce4-panel page