Have you gone into the game settings and then to controllers mouse sensitivity should be in there.

I have the same problem, even if i change X and Y sensitivity to 50% with mouse smoothing off the y-axis moves a lot faster than the x-axis.
And I can't disable mouse acceleration (if you click on the button it does nothing).

i guess its cause the disable of the acceleration isnt possible

my deadzone is also messed up, which may be causing the same thing.

This problem is rather complex to describe, as it has multiple parts to it:

1)Your turning speed is limited. Thus your mouse input on the horizontal axis is effectively cut off after a certain point. This feels awful.

2)Speed on the vertical axis is NOT limited.

3)Overall mouse sensitivity is affected by what you are looking at. I am not quite sure what is fast and what is slow, but it feels like closer objects make the cursor go slower than distant ones. Thus, looking at the sky or distant mountains makes your mouse go fast.

Additionaly, the speed cap in 1) does not seem to be affected by the behaviour mentioned in 3). So while you look at the sky, the Y axis is much more sensitive than the X one. But when looking at the ground, the Y axis is not responsive enough. This makes proper adjustments impossible.

The overall problem here is that the input feels as if a game pad input was simulated using the mouse. Not cool at all.

It feel as if you're playing/looking around on an n64 controllers joystick with just the tip of your pinky. its useless and cant even do simple tasks such as walk through a building without bumping into walls and getting stuck.

Rocket has acknowledged this!
http://www.reddit.com/r/dayz/comments/1t1ige/dayz_mouse_acceleration/ce3e9pl?context=3

the mousefeeling should be like in Arma 3 thats very nice and fluid :D

Regards.

DUPLICATE REPORT

@Matt - See 76 for PRIMARY.