KitoStreaks wrote:
Replay of the problem: http://www.mediafire.com/download/rk55n ... _Reija_Lee)_[Normal]_(2015-03-05)_Osu.osr
u can see it the best on 0.5 Speed
In your windows settings, set the cursor speed to the 6th tick (from the left to the right), and disable the 'enhance pointer precision' checkbox.
Then in osu! try both with raw input at 1.00x sensitivity and without raw input. And see if it still jitters then.
What this looks like to me is extremely heavy sensitivity upscaling and a mouse with a 'not great' sensor and low polling rate.
Let me explain...
Your sensor tracks movement across a surface and sends that information to your PC, which your PC then processes into cursor movement.
The amount of times this happens per second is called the 'polling rate'. The higher the polling rate the smoother and more accurate the tracking is.
Now what I think is happening here is a few things;
1. The mouse sensor isn't the greatest, meaning that the tracking isn't extremely accuracy.
2. The polling rate is rather low.
3. The sensitivity is HEAVILY upscaled in windows/osu/whatever other software.
These things combined can most definitely lead to something like this in extreme cases.
If it wasn't like this before on the same settings then I assume your mouse is pretty much on it's last leg.
The only thing I can suggest is using a much lower sensitivity and making sure there's no nonsensical upscaling going on.