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Trayfreq (pronounced trayfreek) is a GTK+ application released under GPL that lets you select your CPU's governor or frequency from a tray icon; therefore, trayfreq only depends on GTK+ and anything that can show tray icons.


Install trayfreq from the AUR. I suggest using one of the AUR Helpers.

System Setup

CPU scaling requires you to have a kernel with the ability already built in or have an appropriate driver module loaded. If the former case represents you, then you do not have to worry. If the latter case represents you, follow the following steps:

Most modern computers use the module acpi-cpufreq. Other options include the p4-clockmod, powernow-k6, powernow-k7, powernow-k8, and speedstep-centrino drivers.

To load the driver, modprobe it:

# modprobe acpi-cpufreq

To load the driver automatically at start up, add the module to Template:Filename:

# MODULES=( ... acpi-cpufreq ... )

CPU Governors Setup

Some CPU governors may not be built into your kernel, and you can add them to Template:Filename to have them automatically load at start up. Again, edit Template:Filename to load the governors' drivers.

# MODULES=( ... cpufreq-conservative cpufreq-powersave cpufreq-userspace cpufreq-ondemand cpufreq-performance ... )

Trayfreq Setup

Now, let's edit the configuration file for trayfreq.

# nano /usr/share/trayfreq/trayfreq.config

Everything will be commented out; uncomment what you want to use. Let's go through the options

Note that, if a default frequency is set, it will override the governor.

Sample File:


If you want, you can have a configuration file in your home folder, but it cannot set the program to run when the tray icon is activated for security reasons. The file should be Template:Filename; if it exists, trayfreq will still look at Template:Filename for the program to run when the tray icon is activated, but the configuration file in the home folder will override everything else.


A desktop file is installed into /etc/xdg/autostart/. Template:Codeline is placed in the desktop file so that it will not automatically start but put the option in start up managers. If you want it to start automatically, open the start up manager that comes with your desktop enviroment and check trayfreq. KDE, GNOME, XFCE, LXDE all have start up managers. If you don't use one of these, trayfreq will automatically start.

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