Wired X360 pad and left analog dead zones?

[Gideon Zhi]

Hi folks,

I'm actually really impressed with PPSSPP, and thanks to it, my interest in PSP titles has skyrocketed. (I just can't see myself sitting hunched over a portable for any real length of time...)

But I'm having an issue with the left analog stick finding frequent dead zones. It's kind of hard to explain, but I'll try to illustrate using Ys Seven as an example. If I'm just wandering around in the Altago docks right where the game starts, using the left analog stick for navigation, there will be times when the stick is fully extended and Adol will just stop moving. If I tilt the stick further in a slightly different direction, then move it back, he'll usually start moving in that direction again. Other times, he'll move haltingly, as if he was only receiving sporadic input from the analog stick. I've observed similar behavior in The Third Birthday. I've tried both the 32 and 64 bit versions of the emulator, in 0.9.7 and 0.9.8 flavors. My computer is an i5-3570K sporting a GTX 750 Ti and 8GB of RAM, so specs shouldn't be a problem.

The right analog stick works fine. And in fact, the only reason I'm using a 360 pad to test this is because I was first using a DualShock 3 via an XInput wrapper, and I was experiencing the same issue but thought it might be bluetooth lag or something, so I switched as a diagnostic and just haven't gotten around to switching back.

Does anyone have any idea what might be going on here? Is it a configuration issue, something wrong with my DirectX, or something in the PPSSPP code somewhere? This is really badly distracting and makes a bunch of otherwise flawlessly emulated games basically unplayable.