GRS Trackball problems. Centipede X-axis only works???

[cbuckthree]

I installed a GRS trackball.

• The trackball works in Windows 11 as a mouse (although it's slow).
• The trackball works in MAME UI menu as a mouse (although it too is slow).

Set my MAME 0.225 mame.ini file to:

• trackball_device, mouse
• dial_device, mouse
• multimouse, 1

I start Centipede, go into the MAME menu, change the input for general machine, and try to change the "Track X Analog" and "Track Y Analog" settings. But it does NOT change the input settings when I move the trackball. It only changes the input when I move the mouse. What is weird though is the MAME UI cursor moves correctly when I move the trackball, even when trying to change the input, so clearly MAME is understanding the input of the trackball.

What is even MORE odd, is when I use my mouse to set the inputs, the X axis (left and right) work just fine with the trackball (???), but the Y axis (forward and backward) only work with the mouse.

Attached is the mame.ini and the centipede.cfg files for your review.

mame.ini centiped.cfg

Edited November 8 by cbuckthree
Grammatical fix