This is a very simple Linux TDP Decky Plugin that wraps ryzenadj

• Compatibility
• Requirements
• Installation
  • Prerequisites
  • Quick Install
  • Manual Install
• Manual Build
• Advanced Configuration
  • Custom TDP Method
  • Custom Device Settings
• Troubleshooting

Tested on ChimeraOS Stable (44-1 and 43-1), ChimeraOS 45 unstable, NobaraOS 38, and Bazzite Deck Edition.

Other distros not tested.

Bazzite may require you to configure iomem=relaxed as an additional kernel parameter.

To check this, you can run which ryzenadj in a terminal/console, which should print out a path to a ryzenadj binary.

e.g.

$ which ryzenadj
/usr/bin/ryzenadj

If you do not have ryzenadj installed, you will need to get a working copy installed onto your machine.

To test your ryzenadj to make sure that it's functional, run the following:

$ sudo ryzenadj -i

This should print out a table that looks something like the following:

CPU Family: Rembrandt
SMU BIOS Interface Version: 18
Version: v0.13.0
PM Table Version: 450005
|        Name         |   Value   |     Parameter      |
|---------------------|-----------|--------------------|
| STAPM LIMIT         |     8.000 | stapm-limit        |
| STAPM VALUE         |     0.062 |                    |

If you see an error, you may need to set iomem=relaxed as a boot parameter for your kernel.

Decky Loader must already be installed.

run the following in terminal, then reboot:

curl -L https://github.com/aarron-lee/SimpleDeckyTDP/raw/main/install.sh | sh

Download the latest release from the releases page

Unzip the tar.gz file, and move the SimpleDeckyTDP folder to your $HOME/homebrew/plugins directory

then run:

sudo systemctl restart plugin_loader.service

then reboot your machine.

Dependencies:

• Node.js v16.14+ and pnpm installed
• fully functional ryzenadj

git clone https://github.com/aarron-lee/SimpleDeckyTDP.git

cd SimpleDeckyTDP

# if pnpm not already installed
npm install -g pnpm

pnpm install
pnpm update decky-frontend-lib --latest
pnpm run build

Afterwards, you can place the entire SimpleDeckyTDP folder in the ~/homebrew/plugins directly, then restart your plugin service

sudo systemctl restart plugin_loader.service

sudo systemctl reboot

If you'd prefer to use something other than ryzenadj for to set TDP, you can opt to override ryzenadj with an alternative.

In the $HOME/homebrew/settings/SimpleDeckyTDP/settings.json, add an overrideRyzenadj value. Whatever value you set will be used as a command, with the tdp provided as a single additional arg

e.g.

# settings.json
{
    "overrideRyzenadj": "/path/to/script.sh",
    ...
}

# called later at app runtime, 15 = tdp value
sudo /path/to/script.sh 15

You can see how it's used in the code here

See device settings README

If you see buggy behavior after upgrading to a new version of the plugin, it might be due to some bad values in an older settings file.

Try deleting the $HOME/homebrew/settings/SimpleDeckyTDP/settings.json file.

Note that this will delete any of your saved TDP profiles, so you could optionally copy it somewhere else to keep it as a backup instead.