Game Input MultipleXer

The adapter is probably working. Otherwise you would get frequent disconnection issues.

Will try it without the uart converter on the weekend.
I think its something with the hardware, when the
symptoms with my laptop/RPi3 and different mice are the same.

Same results with the arduino micro on the RPi3 without the USB converter

Im out of ideas dont know what to test next
-RPi3 with/out USB converter >jitter
-Laptop Windows 8 >jitter
-different mice
-different mouse polling rate
-flashed the atmega32u4.hex file from the EMUPS4 folder
as arduino micro and as (adruino leonardo just to test)
-shorter cables
-different USB cables
-smaller/bigger deadzone

nothing solved my problem

Did you try different games?

I start GIMX in curses mode.
as soon as i move my mouse for example up, it starts to jitter.
When i stop moving my mouse the jitter also stops.
If i move my right stick with the controller, GIMX shows smooth movements
without any jitter.
Its the same ingame or in the PS4 menu.
Its playable in Black ops but when i do fast movements i can feel and see
that the movement is jumpy/jttery. (it is not a straight horizontal line from
left to right)

Try adding mouse filtering.
https://gimx.fr/wiki/index.php?title=Mo ... #Smoothing
Try filter = 1 and buffer size = 2.