Steam not recognizing DualSense trackpad halves

[Mohireza]

So I was trying to play Grim Dawn with my DualSense and some of the actions were mapped to the left and right sides of the trackpack. But I realized that something was wrong with the trackpad and after trying a few different options, I realized that Steam detects the trackpad as a whole button when pressed in the "test device inputs" window.

Now I have PS controller support option enabled and my controller firmware is up to date. I used DS4W just to make sure this is not a hardware issue and both sides of the trackpad functioned separately as mouse button so it's not the trackpad itself.

[tintingaroo]

There's no indicator for halves, but the tester reports trackpad finger tracking.
If the tracking and button press work, then halves should work (unless an issue with controller layouts or something...).

Are you connecting via USB or Bluetooth? The tracking should always be reported by the tester if using USB.

Following matters for BT:
You mention PS Controller Support is enabled but is that 'Enabled' or 'Enabled in Games w/o Support'?
Did you test in Steam after testing via DS4W without powering-off the controller?

If you're connecting via Bluetooth, the controller needs to be operating in 'advanced/PS mode'. On connection it operates in 'simple/PC mode' as a basic DirectInput controller - there is no trackpad tracking in this mode (nor gyro/light bar control/rumble etc).

Steam will switch the controller to advanced when PS Controller Support is set to 'Enabled' (not 'Enabled in Game w/o Support').
DS4W also switches the controller to advanced.

Once the controller is in advanced mode, Steam's tester should report the tracking (doesn't matter what PS Controller Support is set to at this point).

[Mohireza]

Originally posted by tintingaroo:

There's no indicator for halves, but the tester reports trackpad finger tracking.
If the tracking and button press work, then halves should work (unless an issue with controller layouts or something...).

Are you connecting via USB or Bluetooth? The tracking should always be reported by the tester if using USB.

Following matters for BT:
You mention PS Controller Support is enabled but is that 'Enabled' or 'Enabled in Games w/o Support'?
Did you test in Steam after testing via DS4W without powering-off the controller?

If you're connecting via Bluetooth, the controller needs to be operating in 'advanced/PS mode'. On connection it operates in 'simple/PC mode' as a basic DirectInput controller - there is no trackpad tracking in this mode (nor gyro/light bar control/rumble etc).

Steam will switch the controller to advanced when PS Controller Support is set to 'Enabled' (not 'Enabled in Game w/o Support').
DS4W also switches the controller to advanced.

Once the controller is in advanced mode, Steam's tester should report the tracking (doesn't matter what PS Controller Support is set to at this point).

Well thanks but it got fixed on its own somehow. But again, pressing the edges of the trackpad still functions as the middle button but pressing the area that is slightly closer to the center is recognized as "left" and "right" click.

[tintingaroo]

Looks like that's essentially the way things are.

From looking at touch tracking via Steam's tester and from DS4Windows' Controller Readings tab, the controller itself doesn't register/report touch input at some extremities of the trackpad. I believe the black component under what we physically touch is what reads touch - it doesn't extend to all edges.

Center Trackpad's Click action could be thought of as 'Trackpad Button Click'. Unless it's unbound it will be triggered when the trackpad button is pressed.