Radeon Dynamic Power Management

Source (link to git-repo or to original if based on someone elses unmodified work): Add the source-code for this project on opencode.net

Description:

Introduction

This QML plasmoid applet allows you to control and monitor the dynamic power management status of AMD/ATI graphics cards.

Linux Kernel >= 3.11 and KDE >= 4.11 are required.

It does **NOT** work with the proprietary **fglrx** driver.

Usage

1. Kernel 3.11.x or 3.12.x must have the argument radeon.dpm=1 to enable Radeon's Dynamic Power Management (DPM).
2. You also have to enable normal users write to some /sys/class/drm/card0/device/ files by implementing commands below. For permanent changes(recommended), add these two lines to /etc/rc.local or, for OpenSUSE users, in /etc/init.d/boot.local

[indent]chmod a+w /sys/class/drm/card0/device/power_dpm_force_performance_level
chmod a+w /sys/class/drm/card0/device/power_dpm_state[/indent]

On some distributions like Fedora, you need to switch to root by su instead of using sudo to run those commands.

3. Install this plasmoid and put it on your desktop or panel.

If you find it displays incorrectly, click the refresh button. :D

Debug Info

You can check the current power level, voltage information by looking into the debug subsystem.

[indent]sudo cat /sys/kernel/debug/dri/64/radeon_pm_info[/indent]

I don't think these information are helpful nor useful, thus they won't be displayed in this applet.

Related

If you want to know more about the tunable options, please check AMD's Alex Deucher's blog post: http://www.botchco.com/agd5f/?p=57

Last changelog:

6 years ago

v0.3.0
* fix a bug
* support "set on boot" (similar to "save config" in the old radeon pm applet)
* new icon

v0.2.0
* add configuration dialog
* support popup applet mode
* uI polishes

v0.1.0
* inital

zezinho
5 years ago

This plasmoid is nice, and I could adapt it easily to an old Radeon X700 mobile (pm uses profiles)

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zezinho
5 years ago

The Power Play fork is the App #170870 in this site.

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NChaos
6 years ago

Hi, I just transferred from windows to Opensuse recently, and since then the fan of my radeon goes at 100%. I would really like to solve this using your app, but I can't find the files necessary to allow it to take control. The path is fine, there are no such files inside the device folder though.

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librehat
6 years ago

If there is no such file under device directory, you probably need to enable Radeon dynamic power management manually.
Add radeon.dpm=1 to your kernel/linux line in GRUB.

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