Few errors are as jarring as clicking Start in DSX only to get blocked by “Could not open controller exclusively.” Here’s what’s actually happening and how to fix it properly.
Why This Happens
This relates to a Windows concept called exclusive mode. When DSX tries to establish a direct connection with your DualSense, it requests exclusive access so other programs can’t interfere with the signal. If something else, another game, an overlay, a launcher, has already grabbed hold of your controller first, DSX gets locked out and throws this error.
The Reliable Fix: HidHide
Rather than relying on exclusive-mode locking (which can be inconsistent across different Windows versions and updates), HidHide solves the same underlying problem, keeping other programs from seeing your raw controller, at the driver level instead, which tends to be much more consistent.
Setting it up:
- If your DSX profile has any built-in “hide controller” option enabled, turn it off first, running that alongside HidHide can cause conflicts rather than helping
- Close DSX completely
- Open the HidHide Configuration Client (available from its official GitHub release page if you don’t have it yet)
- Under Devices, find your DualSense and check the box to hide it, then enable device hiding at the bottom
- Under Applications, add DSX’s executable to the whitelist so it can still see the physical controller while everything else can’t
This achieves the same goal exclusive mode was trying to (blocking other programs from grabbing your controller) but in a way that’s generally more reliable across different Windows configurations.
Quick Fix: Close Background Apps
If you need something faster while you set up HidHide, or just want to test whether a specific app is the culprit, closing likely conflicting programs can free up your controller immediately.
Common apps worth checking:
- Steam, particularly if Steam Input is enabled for PlayStation controllers, it can grab hold of the controller before DSX does
- Discord, its overlay and device scanning features have been reported to interfere with controller access in some setups
- NVIDIA app or GeForce Experience, overlay features that track input devices for hotkey purposes can occasionally hold a lock
- Epic Games Launcher, EA App, Battle.net, or any other launcher running in the background
Close what you can from your system tray, then try starting DSX again. If it connects cleanly once a specific app is closed, that’s your actual culprit, and you can decide whether to keep it closed during gaming sessions or set up HidHide as the permanent fix instead.
Making DSX Win the Race Automatically
If you’d rather not manually close apps every session, setting DSX to launch at startup (before other programs have a chance to grab your controller first) can help.
Check DSX’s settings for a “run at startup” option, and if available, a “start minimized” option alongside it so it doesn’t pop up and interrupt your desktop. This isn’t as reliable as HidHide long-term, since it depends on timing rather than actually preventing conflicts, but it’s a reasonable stopgap if HidHide isn’t set up yet.
If Your Controller Gets Stuck After a Crash
If the exclusive mode error crashes DSX mid-session, Windows can occasionally leave your controller in a disabled or “ghosted” state.
- Press Win + X and open Device Manager
- Click View, then select “Devices by container”
- Find the container for your Wireless Controller or DualSense
- Expand it, and look for any entry with a small down-arrow icon, that indicates it’s disabled
- Right-click and select Enable, then restart DSX
The Bigger Picture
This error is fundamentally about two programs competing for the same hardware. HidHide is the most durable fix because it prevents the competition entirely rather than trying to win a timing race every time you boot your PC. If you’re setting up DSX for the first time, our Drivers page covers HidHide installation alongside ViGEmBus, and our Troubleshooting guide covers other common connection issues if this specific fix doesn’t resolve what you’re seeing.
Why This Error Feels Random
One frustrating aspect of this error is that it doesn’t always happen consistently, DSX might connect fine one day and throw the exclusive mode error the next, even though nothing in your setup changed. This usually comes down to which programs happened to start first and in what order, since Windows doesn’t guarantee a fixed startup sequence for background apps. That inconsistency is exactly why HidHide is the more reliable long-term solution compared to just being careful about launch order, it removes the race condition entirely rather than depending on winning it consistently.
Testing Whether HidHide Actually Fixed It
After setting up HidHide, it’s worth confirming the fix actually worked rather than assuming it did. Restart your PC fully, let your usual background apps (Steam, Discord, etc.) launch normally rather than closing them manually, then open DSX and click Start. If it connects without the exclusive mode error under normal conditions, with everything else running as usual, that confirms HidHide is doing its job correctly. If the error still shows up occasionally, double-check that DSX’s executable path in HidHide’s whitelist is correct, especially if you’ve moved or updated DSX since first setting this up, an outdated path is a common reason HidHide stops working as expected after time.