Skip to content

EmuDeck guide Cemu Tips and Tricks

How to Configure Gyro

Gyro for Cemu requires SteamDeckGyroDSU. SteamDeckGyroDSU can be installed via EmuDeck, or it can be installed manually.

Gyro only works with the Wii U Gamepad (enabled by default). If you changed your controller layout to the Pro Controller, gyro will not work.

Read How to Use the Wii U Pro Controller Configuration to learn how to apply the Pro Controller layout on a per game basis.

Visit SteamDeckGyroDSU to learn how to install and utilize SteamDeckGyroDSU.

How to Configure Gyro With External Controllers

Some external controllers, including the Sony DualSense and the Nintendo Switch Pro Controller feature gyro controls. Cemu allows you to use this gyro with a little bit of set up.

Here's How

Desktop Mode

  1. Switch to Desktop Mode
  2. Exit out of Steam
  3. You may exit out of Steam a couple of different ways:
    • Right click the Steam icon in your taskbar and click Exit Steam
    • Open Steam, click the Steam button in the top left, click Exit
    • Open a terminal (Konsole) and enter killall -9 steam
    • Do note that clicking the the X button in the top right of the Steam window will not exit out of Steam
  4. Your controls will switch to Lizard Mode. Use L2 to right click, R2 to left click, and the Right Trackpad to move the mouse
  5. Click the bluetooth icon in the bottom right of your taskbar and connect your controller
  6. Click the Steam icon in the bottom left of the taskbar and open Cemu AppImage
  7. At the top of the Cemu GUI, click Options, click Input settings
  8. Under the Controller 1 tab, press the - button to the right of the Controller drop-down twice
  9. The drop-down box will be empty and your controls will no longer be mapped, this is expected behavior
  10. Under the Controller 1 tab, press the + button to the right of the Controller drop-down
  11. Select SDLController for the API drop-down and select your controller under the Controller drop-down
  12. Click the Add button and Cemu will auto-map your controls
  13. Click the Settings button under the drop-down with your controller name
  14. Check the box to the left of Use motion
  15. Click the OK button
  16. Give the profile a unique name under the Profile drop-down box at the top and click Save
  17. Your controller is now configured with gyro, proceed to the Game Mode section to start using your controller in Game Mode

Game Mode

  1. In Game Mode, connect your controller
  2. Select your Wii U game
  3. On the Play screen, select the Controller icon to the right of the screen
  4. Select your controller tab at the top
  5. Click the Gear icon to the right, and click Disable Steam Input
  6. You may need to restart first for this setting to properly apply
  7. Your controller's gyro will now work for this selected game, repeat as needed for your other games

Post-Configuration

This section went over creating a new Player 1 profile for your external controller.

To switch between your new controller profile and the Steam Deck controller profile, open Cemu and open the input settings, select your preferred option in the Profile drop-down menu and click Load.

To switch back to the Steam Deck controls, select the Deck-Gamepad-Gyro profile:

(Optional) To restore Steam Input:

  1. Select your Nintendo Wii U game
  2. On the Play screen, select the Controller icon to the right of the screen
  3. Select your controller tab at the top
  4. Click the Gear icon to the right, and click Enable Steam Input
  5. You may need to restart first for this setting to properly apply
  6. The controls will be reverted to Steam Input and the Steam Deck controls will be restored

How to Optimize Performance (Power Tools)

Visit Power Tools to learn how to optimize performance using Power Tools.

How to Configure Multiplayer

  1. Open Cemu
  2. It's recommended you enable multiplayer on a per-game basis. Turning on additional controllers can disable single player controls in a handful of games
  3. Right click a game, click Edit Game Profile
  4. Click Controller
  5. To the right of each Controller (Controller 2 through Controller 4), select the respective Deck # profile (Deck 2 for player 2 and so on)
  6. (Optional) You may need to re-arrange the controller order in Game Mode for your controllers to function as expected. See How to Re-Arrange the Controller Order for more information

How to Use the Wii U Pro Controller Configuration

In some some games, the initial screen will prompt for a controller configuration: Wii U Gamepad or Wii U Pro Controller. Some games will automatically switch to the Wii U Pro Controller configuration if you choose it.

For example:

If you prefer to use the Wii U Pro Controller layout, you need to change the controller profile in Cemu. Make sure to change controller profiles on a per-game basis so it is persistent on EmuDeck updates.

Tutorial

  1. Right click the game, click Edit game profile
  2. Click the Controller tab
  3. Change the profile to Deck-P1
  4. When you launch a game, one of the following two things will happen:
  5. Some games will prompt you to choose a controller layout, select the Wii U Pro Controller
  6. Some games will automatically switch to the Wii U Pro Controller configuration

How to Configure Cemu Native to Work With EmulationStation-DE

In order to use Cemu Native through EmulationStation-DE, you will have to enable it in the settings menu.

Here's How

  1. Open EmulationStation-DE
  2. Press Start
  3. Press Other Settings
  4. Press Alternative Emulators
  5. On Wiiu, select Cemu [Native]

How to Optimize Breath of the Wild

IMPORTANT: You need Version 208 of Breath of the Wild to use FPS++. Read How to Manage DLC and Updates to learn how to install game updates for Cemu.

How to Configure Cemu

  1. In Desktop Mode, open Cemu AppImage
  2. Right click Breath of the Wild, click Edit graphic packs
  3. Click Download latest community graphic packs
  4. Click the ⌄ to the left of Mods
  5. Check the box to the left of FPS++
  6. Change the mode to Advanced Settings
  7. Change the Framerate Limit to 40FPS
  8. Close out of Cemu

How to Configure Game Mode

  1. In Game Mode, open Breath of the Wild
  2. Click the ... (the QAM) button
  3. Click the battery icon
  4. Click Advanced View
  5. Enable Use per-game profile
  6. Set the refresh rate to 40

After doing the steps in the above two sections, Breath of the Wild will run at a stable 40 FPS with temporary occasional hiccups in new areas while it compiles shaders.

How to Mod Breath of the Wild

This section will cover how to mod Breath of the Wild using UKMM, a mod manager.

  1. In /home/deck/Applications, create a ukmm folder
  2. These folders are recommendations, you may use a folder of your choice but you will need to adjust any paths in future steps to the folders you select
  3. Download the latest ukmm-x86_64-unknown-linux-gnu.tar.xz file from https://github.com/NiceneNerd/UKMM/releases to /home/deck/Applications/ukmm
  4. Right click ukmm-x86_64-unknown-linux-gnu.tar.xz, click Extract archive here
  5. If it creates a subfolder, move the contents directly to /home/deck/Applications/ukmm
  6. Download the attached .sh file and place it in /home/deck/Applications/ukmm
  7. ukmm-launcher.sh
  8. For the contents of the script, see https://raw.githubusercontent.com/EmuDeck/emudeck.github.io/main/docs/configuration-files/ukmm-launcher.sh
  9. If you used a different folder than what was recommended in Step 1, make sure to open ukmm-launcher.sh in Kate or a text editor of your choice and update the paths to where you placed UKMM
  10. Right click ukmm-launcher.sh, click Properties, click Permissions, check Is Executable
  11. Use this file whenever you want to launch UKMM
  12. You may add UKMM to Steam by right clicking it and clicking Add to Steam
  13. Double click ukmm-launcher.sh to open it
  14. Follow UKMM's documentation, https://nicenenerd.github.io/UKMM/using-mods.html to learn how to mod Breath of the Wild
  15. When deploying mods, the graphic pack folder will be located here: /home/deck/.local/share/Cemu/graphicPacks

How to Roll Back Cemu to an Older Version

Preface

Your ROMs launch using a script created by EmuDeck, cemu.sh in Emulation/tools/launchers.

The script launches the corresponding emulator in /home/deck/Applications and specifically looks for two traits:

  • The most recently downloaded version of the emulator in /home/deck/Applications, based on the file/release date.
  • The emulator name at the beginning of the file. Anything after the emulator name is ignored.
  • For example, if the latest version of the emulator is 1351 and you would like to downgrade to 1349. When you download version 1349, you could rename it to EMULATORNAME-1349.AppImage, and EmuDeck's script will ignore the -1349 in the file name, allowing you to record which versions of the emulator you are using through the file name.

How to Roll Back Cemu

  1. Download the version of the emulator you would like to use from Cemu's GitHub: https://github.com/cemu-project/Cemu/releases
  2. Move the downloaded emulator from Step 1 to /home/deck/Applications
  3. (Optional) Rename or delete the original emulator file
  4. Right click the newly downloaded emulator, click Properties, click Permissions, check Is executable
  5. Your games will now launch using the version of the emulator you downloaded

How to Configure Language Settings

UI

  1. In Desktop Mode, open Cemu
  2. Click Options at the top
  3. Under Interface, click the Language drop-down menu and select your preferred language
  4. Restart Cemu

In-Game

  1. In Desktop Mode, open Cemu
  2. Click Options at the to
  3. Click Console language and select your preferred language

How to Configure Online Multiplayer Via Pretendo

You need a physical Wii U to play online multiplayer via Pretendo. You cannot play online multiplayer without a physical Wii U.

For instructions on how to dump the online files from a Wii U, see https://cemu.cfw.guide/using-dumpling.html#copying-online-files-to-cemu.

For more information on Pretendo, see https://pretendo.network/.

For Pretendo's installation instructions, see https://pretendo.network/docs/install/cemu.

  1. From your Wii U, you will need to dump two files: otp.bin and seeprom.bin
  2. On the Steam Deck, place these two files directly in the $HOME/.local/share/Cemu folder
  3. Folders with a . (.var, .local, .config, etc.) at the beginning are hidden by default. In Dolphin (file manager), click the hamburger menu in the top right, click Show Hidden Files to see these folders
  4. In Desktop Mode, open Cemu, click Options, General Settings, click Account, select your PNID in the Active Account drop-down menu and select Pretendo under Network Service
  5. Pretendo is now configured for Cemu