I used this solution to play rocket league split screen using both my monitors. Now I wanted to play with two friends so I added a third controller. This works fine until the game starts. Then you can still hear sound. From the sound I can hear that the controller input also works. Here are some pictures that might help visualisering what I mean.

I also tried starting a Exhibition match and adding the extra players after starting the match. This has the same result when the third player is added.

  • Is there any additional 3rd party software being used? Have you looked at your event viewer in your Windows OS? If so, are there any errors or warnings? Mar 30, 2017 at 15:16
  • I would like to thank you for commenting on this question. This made me start up the game again and try my tree player setup. I found out that the problem no longer exists. My guess is that it was fixed in an graphics driver, rocketleague and/or windows update. Apr 1, 2017 at 9:41
  • Would you be able to create an answer with the steps taken and such? Would be greatly appreciated! Apr 4, 2017 at 14:49

1 Answer 1


I am answering this question on request of @HazyKingdom. Please let it be known that the answer was found by reddit/youtube user vi9ke.

  1. Go to you Display settings.
  2. Multiply the width of your smallest screen.
  3. Remember or write down the the value from step 2 and the height of your smallest screen.
  4. Open File Explorer.
  5. Go to your documents folder (Probably C:\Users\{User}\Documents unless you have changed this yourself).
  6. Go further until you are at C:\Users\{User}\Documents\My Games\Rocket League\TAGame\Config.
  7. Here you want to create a copy of TASystemSettings.ini so when you make a mistake you can revert your changes.
  8. Open TASystemSettings.ini in your preferred text editor.
  9. On line 62 there is a value called 'ResX' change the value to the value you found in step 2.
  10. On line 63 there is a value called 'ResY' change the value to the height of your smallest screen (step 3).
  11. Start up RocketLeague
  12. Go to Options > Video and set 'Windowmode' to windowed or borderless (whatever works best for you).
  13. Go to Options > Misc and make sure 'Horizontal Splitscreen' is unchecked.
  14. If during the game you see objects not being rendered or a black screen. Go to Options > Video and set 'Render Quality' to 'High Quality'.

This answer is tested on Windows 10.


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