When you try to open SteamVR, you may find the computer screen shows you the error code 306. How can you fix SteamVR error 306 to use this app properly? Don’t worry and you come to the right place. Here you can find some useful solutions from MiniTool and just try them to fix your issue.

SteamVR Error Code 306

SteamVR is a virtual reality platform that is developed by Valve as an extension of Steam. It is used to experience VR content on the hardware of your choice. SteamVR supports its own HMDs like Vive and other HMDs like Rift.

However, this application doesn’t always work properly. When you try to launch SteamVR, you may get the error code 306 and the detailed message is “Error Starting SteamVR – SteamVR failed to initialized for unknown reasons (Error: Shared IPC Compositor Connect Failed (306))”.

Compared with Steam, SteamVR uses many components, so the error code may be triggered due to various reasons, for example, HDIM cable, SteamVR update, outdated graphics driver, etc. In the following part, we will show you some effective solutions to fix SteamVR 306.

How to Fix SteamVR Error 306

Use Primary HDMI Port

Sometimes the error shared IPC compositor connect failed 306 has something to do with your HDMI cable. That is, the HDMI cable of VR may not be in the primary HDMI port on your computer. To make sure VR can work correctly, you need to always use a primary port.

Sometimes, you shouldn’t use the adapter or intermediate device connecting the box HDMI cable to your HDMI port on the video card. So, it will be better if you connect the VR HDMI cable coming from the box directly to the HDMI port.

  1. Remove the HDMI cable from the main port of your graphics card.
  2. Connect the VR cable to the Main Port/Primary Port that comes from the VR box.
  3. The monitor cable may be in the secondary port since it can still work when the VR won’t.
  4. Exit SteamVR and restart it.

Try the SteamVR Beta

According to users, changing the SteamVR properties settings can fix the issue of SteamVR failed to initialize for unknown reasons 306. You can choose beta for VR. Just follow these steps:

  1. Launch SteamVR on your computer.
  2. Find SteamVR in the Library tab and right-click it to choose Properties.
  3. Under the Beta tab, choose beta – SteamVR Beta Update from the Select the beta you would like to opt into
  4. Close the window and wait for the update finishes.

Install Graphics Drivers Manually

Another reason that may trigger SteamVR error 306 is the outdated graphics card driver. Updating the graphics driver to the latest version or reinstalling it can be helpful to get rid of the error code.

To update the video card driver, you need to download a new version from the website of your manufacturer. Then, install it on your computer. This post may be helpful for you - How to Update Graphics Card Drivers (NVIDIA/AMD/Intel).

Uninstall Natural Locomotion

According to reports, Natureal Locomotion may lead to SteamVR error code 306 since the driver may not be compatible with SteamVR. So, you need to uninstall it.

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1. Go to Control Panel and click Programs and Features.

control panel items

2. Right-click Natural Locomotion and choose Uninstall.

3. Then, go to your steam directory and open the config folder.

4. Remove the locomotion folder.

5. Open SteamVR and test it in Motion Smoothing.

Final Words

Have you received SteamVR error 306 when trying to launch this app? Don’t worry and now you can easily fix it after trying these solutions in this post. Just have a try!

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