Steam Deck - Gyro Axes Not Mapped Correctly?

[withered-rose]

So, I've run into a bit of a strange issue and I don't think I've seen anyone else talking about it; when I'm using Vanilla on my Steam Deck, the gyro functions, but only the "Pitch" and "Roll" axes are working. The "Yaw" axis is seemingly completely dead. The yaw axis works fine on the Deck itself, it's only failing to register within Vanilla.

It exhibits the same behavior both in Game Mode and in Desktop Mode. Is there any known cause or possible solution for this issue? It makes aiming with gyro practically impossible, since I can't aim left/right without holding the controller totally flat.

[itsmattkc]

In my testing, all three axes work. I have heard some people claim the gyroscope needs to be set to something in Steam Input (e.g. "as mouse" or "as joystick") to appear correctly, but for me it works either way.

If your Wii U is modded, try running this test program and seeing what gyroscope/accelerometer data you get: https://github.com/Pokes303/drc-test

[withered-rose]

I can record a video later on if needed, but I did briefly test the values with drc-test, and confirmed neither the gyro nor the accelerometer seem to read any input from the yaw axis. I have tried setting the gyro mapping in Steam to "gyro to mouse" and "gyro to joystick camera", but there is no change in behavior. With "gyro off", obviously it completely disables gyro. One thing I haven't tried yet, which I will after I finish eating dinner, is disabling Steam Input altogether. Maybe that'll have some effect?