Search Issue Tracker

Fixed in 1.4.1



Found in [Package]


Issue ID




[Input System] DualShock4 Controller returns random Input values when connected via Bluetooth while Steam is Running

Package: Input System


How to reproduce:
1. Open the user attached project
2. Connect a DualShock 4 controller via a Bluetooth
3. Launch Steam
4. Click Window -> Analysis -> Input Debugger
5. Select the DS4 controller
6. Inspect the Input values reported. (Right trigger R2 in particular)

The "Playstation Configuration Support" option under Controller Settings must be checked to repro the issue.

Expected results: The reported input value is 0 if the trigger is not pressed
Actual results: The reported values are random and keep changing all the time

Reproducible with: 1.0.0, 1.1.0-preview.2(2019.4.18f1, 2020.2.2f1, 2021.1.0b1, 2021.2.0a1)
Could not test with: 2018.4(Input system is not available)

Workaround: Quit Steam and re-start the controller

1. Does not reproduce if the controller is connected via USB

  1. Resolution Note (fix version 1.4.1):

    Fixed in Input System package version 1.4.1 which is available in Unity 2019.4 and above

    PR for the fix -

Comments (8)

  1. Mirvini

    Feb 26, 2022 01:37

    It's a bit shocking that this still hasn't been fixed, not simply because the Dualshock controller is so widely used, but because according to this link, the cause of the bug has already been found along with the solution and a member of the steam dev team contacted unity

    It appears steam, and other apps, enable extended HID reporting from the controller. And for some reason the new input system does not handle these correctly.

  2. HenryCGS

    Jan 22, 2022 19:26

    Still confirmed in 2020.3 LTS, package version 1.0.2. This is insane!! The DS4 is one of the most used controllers on PC, this bug is unacceptable!

  3. ReneSchleese

    Jan 04, 2022 23:01

    Having the same problem with Unity 2021.1.23f1

    PS4 controller via Bluetooth and Steam controller support disabled
    * Gamepad Tester input correct
    * Unity input correct

    PS4 controller via Bluetooth and Steam controller support enabled
    * Gamepad Tester input correct
    * Unity input faulty

    This sort of proves that there is a way of getting correct PS4 Bluetooth input data, even with active "Steam input hack".

  4. jackv471

    Dec 30, 2021 00:19

    This issue definitely isn't solved, I have been having the ds4 buggy Bluetooth inputs for well over a year and I cant find a solution, the proof that has the same problem isn't even correct, my ds4 works fine on that website but unity still goes crazy.
    If anybody finds a solution to this problem please let me know, this is driving me crazy

  5. BillyWM

    Nov 27, 2021 04:36

    This explanation doesn't seem credible.

    I've done clean restarts where Steam / "Steam Client Service" is never allowed to launch in the background and get the exact same results. Also, when I do run steam and close it down it makes no difference (contrary to OP's "workaround" note). What, exactly, has Steam installed and where, to make this happen? I've checked over my Services in Windows settings and don't see anything else.

  6. zackblack

    Jun 11, 2021 16:48

    So does this mean that every Unity built game on Steam just doesn't work with wireless PS4 controllers? I don't see how that's possible. What does Valve have to say about this?

  7. zackblack

    May 04, 2021 16:14

    Having this same issue in 2020.3.0f1 and Input System 1.0.2. No Update after 8 months?? PLEASE!

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.