Originally developed by
Codemasters
Developed for Linux by
Feral Interactive Limited
Published for Linux by
Feral Interactive Limited
This document is intended to help you answer any questions that you may have about DiRT 4
DiRT 4 has been fully tested on Ubuntu 18.04.
The game should also work on other recent versions of Ubuntu, and may also work on other Linux distros; however, as the game has not been tested on these, it is possible that you will encounter performance and gameplay issues, and we do not currently offer support for other versions or distros.
The graphics card series and driver versions below have been tested, and these and higher series or versions will run the game without issues:
Nvidia
Series: 680
Driver version: 418.43
NOTE: Open-source Nvidia graphics drivers are not currently supported by DiRT 4. Unfortunately, the current open-source Nvidia drivers do not support a number of the graphical features used in the game.
AMD
Series: R9 285
Driver version: MESA 18.3.4
Yes, achievements are supported by DiRT 4.
If you are signed in to Steam, your achievements will be visible to you in-game and also to other players through the Steam application.
For the best racing experience, we recommend that you play DiRT 4 with a steering wheel or a gamepad with analog triggers.
This is because the game provides the most realistic driving experience if the accelerate and brake commands are mapped to analog inputs on your wheel or gamepad. The game responds to analog inputs according to level of pressure you put on them, making them similar to car accelerator and brake pedals.
It's possible to play DiRT 4 using a keyboard or a gamepad without analog triggers. However, you may want to adjust your settings to provide a better racing experience:
Keyboard
Keyboards do not have analog inputs. This means that you cannot vary the level of pressure in order to vary the rate of acceleration or braking.
You can play the game using a keyboard, but you may find it difficult to control your car's speed. Because of this, we recommend setting Anti-Lock Braking System, Traction Control and Stability Control to higher settings. This will make the car easier to control.
You can adjust Anti-Lock Braking System, Traction Control and Stability Control during a race by selecting Options → Game Preferences → Difficulty Settings from the in-game Pause menu.
Gamepad without analog triggers
By default, the accelerate and brake commands are mapped to the “trigger” buttons on the top of the gamepad. If your gamepad does not have analog triggers, the trigger buttons do not allow you to vary the level of pressure in order to vary the rate of acceleration or braking.
However, all gamepads supported by Feral games have analog sticks. These are the small, mushroom-shaped joysticks on the front of the gamepad. You may prefer to remap the accelerate and brake controls to the right analog stick. To do so, follow the instructions below:
From the Main Menu, select Options & Extras.
Select Input.
Select Device Management, then select your controller from the Configure Device menu.
Select Input Bindings. In the Input Bindings window, select Accelerate then press 1 to clear the default selection. Press 2 then push the Right analog stick forward. This will assign the accelerate command to this input.
Select Brake/reverse, then press gamepad button 1 to clear the default selection. Press gamepad button 2 then pull the Right analog stick backward. This will assign the brake command to this input.
You will now be able to accelerate and brake using the right analog stick. To accelerate, push the stick forward, and to brake, pull it backwards. The further you push or pull the stick, the more strongly you will accelerate or brake.
NOTE: By default, the Look Left, Look Right, Look Up and Look Down commands are assigned to the right analog stick. If you wish to use these commands, you should remap them.
Yes.
The game supports gamepads using the SDL 2.0 API. For more information about SDL, see the SDL Wiki.
The gamepads in the following list have been tested and are supported by DiRT 4:
The pads below are also supported by SDL and you should be able to use them to play DiRT 4. However, as they have not been tested with the game, we cannot guarantee that they will work:
If you encounter problems when using any of the gamepads listed above, please contact our technical support team.
* In order to use your PlayStation pad with DiRT 4, you may need to press the PlayStation button in the center of the controller after connecting the pad to your computer. This allows your computer to recognize the pad.
Yes, most standard USB wheels will work with DiRT 4. The peripherals in the following list have been tested:
Wheels
Pedals
The following wheel bases and wheel rims have also been tested; all listed wheel bases are compatible with all listed wheel rims.
Wheel Bases
Wheel Rims
You may need to map the game controls to inputs on your wheel and its components (such as pedals, if available) before racing. To do so, follow these steps:
Ensure that your wheel and any components are connected to your computer, then launch DiRT 4.
From the Main Menu, select Options & Extras.
Select Input.
Select Device Management, then select your wheel in the Configure Device menu.
Select Input Bindings.
Select Accelerate, then perform the action on your wheel to which you wish to map the “accelerate” command.
Repeat step 6 for all the other game commands, mapping them to the desired action on your wheel.
In order to access all the features of Fanatec and Logitech wheels, a .rules file needs to be added to your computer's udev rules folder. We have provided the required .rules file in DiRT 4's Steam folder. To add this to your computer's udev rules folder, follow the instructions below.
For users running Ubuntu:
Disconnect your steering wheel from your computer.
If it is not already running, launch the Steam application.
Select Library.
In the library, right-click on DiRT 4 and select Properties.
Select Local Files.
Select Browse Local Files.
The DiRT 4 folder window will appear. Open the share folder.
Right-click on the udev folder. Select Open in Terminal.
The Terminal window will appear. If you are using a Fanatec wheel, enter the following command: sudo cp 99-fanatec-wheel-perms.rules /etc/udev/rules.d/ If you are using a Logitech wheel, enter the following command: sudo cp 99-logitech-wheel-perms.rules /etc/udev/rules.d/
Enter the following command: sudo udevadm control --reload-rules && sudo udevadm trigger
Reconnect your steering wheel and launch DiRT 4. DiRT 4 will now have permission to access all features of your steering wheel.
NOTE: It is possible to use your wheel in DiRT 4 without following these instructions, but you may not have access to all of your wheel's features (such as Force Feedback).
Switching between a virtual terminal (by pressing Ctrl + Alt + F1-F6) and the X server (by pressing Ctrl + Alt + F7) while the game is running may cause the game to crash or the graphics to render incorrectly.
The problem will be fixed the next time you launch the game.
We do not recommend switching to a virtual terminal while running the game, as the problem is likely to occur each time you do so.
If your CPU frequency scaling governor is set to "Power Save" mode, you may experience performance issues in DiRT 4. When playing games, we recommend that you set your CPU frequency scaling governor to "High Performance" mode.
We have developed a tool called GameMode that can enact this process automatically. If GameMode is installed, DiRT 4 will automatically set your CPU frequency scaling governor mode. To find out more please visit the GameMode entry on GitHub.
If you wish to manually set your CPU frequency scaling governor mode, please follow the instructions below.
echo performance | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor. Press the Return key.If you wish to change your settings back to "Power Save" mode, simply follow the instructions above and enter the following line of code: echo powersave | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor.
There are several factors which have an impact on the speed at which DiRT 4 runs. Please see the DiRT 4 Performance Tips section in the ReadMe for ways to increase the speed at which the game runs on your computer.
Please read the technical support information in the ReadMe; this tells you what to check and if necessary, how to contact Feral Technical Support with your issue.