I have tried for days now, and there is only one solution: The IMPS/2 protocol doesn't support the Logitech's Resolution Feature. According to Logitech Specifications, their more modern optical wheel mice have an optical resolution of 800dpi. However, using XFree with the IMPS/2 mouse driver, I only get a much lower resolution, my measure suggests its 400 dpi.
400 dpi isn't even remotely suitable for high resolution desktop environments or competitive gaming, as you'll either have to use acceleration, a feature that is loathed by almost all knowledgeable mouse users, or you have to get along with a cursor that jumps over a number of pixels, making accurate pointing impossible.
Can you look in the matter? I learned it is a similiar thing in windowsXP, until you install Logitech's proprietary Mouseware, the Mouse seem to be a lot more inaccurate and/or slower.
I really hope I'm wrong since then you'd simply show me what I did wrong and tell me how to gett full resolution immediately.
Samuel Walliser
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