Removing Mouse Acceleration OSX

I am happy to report that mouse acceleration is greatly improved in Lion. With a few tweaks to the Universal Access settings my mouse feels super comfortable and responds nicely, just the way I like it. It goes to show Apple is listening to what we want.

Still does not work that great for Steam games. I just got leopard a couple of weeks ago, and continue to have the same problem with the acceleration when playing games. Its great when im using my trackpad; However, it gets very annoying during any game play. Ive tried different terminal commands and programs, but it still seems to be to slow or to glitchy when playing any first person games.

Ok first of all, you guys are really funny! After reading through the first couple of pages, it becomes clear that not everyone on this planet seems to have the required mouse skills to actually notice that there is a HUGE problem. And in fact it is VERY f..up indeed!

Funny enough, this "feature" actually was one of the reasons (without knowing) that kept me from buying a mac for so such a long time. Years back, whenever I watched someone use a mac they had their mouse set so ridiculously slow and looked so inefficient in what they were doing that I actually though that macs were oldman's computers... now in light of this great mouse behaviour feature osx has to offer, I actually feel for them 😝

Anyway the algorithm works great on the trackpad, making it the best usable trackpad on the market, but is absolutely rubbish for a mouse! It is embarassing that Apple still has not fixed this in Lion... FIX IT PLEASE!

I hope this solves your problem:

http://triq.net/articles/mouse-acceleration-preference-pane-mac-os-x

It is an PrefPane that makes you able to adjust the "acceleration curve".

Works great!

This link was already given in this thread 15 months ago (bottom of first page).

Many thx for your input! I know about this solution, but it only fixes part of the problem, repectively creates a new one. When disabling the acceleration altogether, the mouse is very slow even at the fastest setting. So you need yet another program to go beyond the limit of Lion. (puke)

My point was that stuff like this really should be native to the os! I'ts like some linux patchwork...

robertfromscarborough wrote:

I don't think you understood me correctly. What I'm saying is every single windows computer even the cheapest ones have an option for disabling mouse acceleration. It's ludicrous to think that adding such a tiny feature to give the user an option to disable in OSX is bloatware. I do not use or own a netbook.

Mouse response varies on a per user basis. Its obviously an issue with many people. Apple shouldn't be the ones to dictate how I use my mouse. I do not understand how this isn't blatantly obvious to everyone.

The mouse acceleration is perfect for apples trackpad. But if they are going to let 3rd party mice (I.e. Logitch) run on their systems then why not let them support raw input? Why is it such a big deal to enable a feature that does nothing other than give user preference? Your obviously not a gamer because if you were then you would understand what people here are complaining about.

Source games rely on raw input for accurate mouse speed and precision. logitech mice in the $100 range have completely customizable configurations relating to these features. Raw input gives the mouse direct control over acceleration curve and sensitivity bypassing OS pre determined curves. Apple blocks this from happening. Without using console comands my mouse is completely un usable in game. Wen I say unusable I mean it literally. It doesn't move.

Paying for a high tier laptop from apple so that I can work and game on the go I shouldn't have issues like this. I wouldn't with any other OS.

So reargardless of how apple thinks I should be using my mouse it shouldn't e in their right to control that. And adding a selectable option to simply disable mouse acceleratio. Isn't going to ruin the experience for anyone else.

This.

I'm using SteerMouse currently, close but no cigar.

I don't know if i went into any detail in my previous posts but the way I fixed this was by turning off the mouse scaling & using a Razor Lachesis mouse. The beauty being is that it has the firmware stored inside the actual mouse, which you set up on a windows PC and essentially 'lock in' 5 different mouse profiles and store those on the mouse using various different DPI & sensitivity settings. The 'profiles' can be changed on the fly using the buttons on the mouse, as can the sensitivity. Combined with turning off accelleration using the below command it actually gives me that same windows feeling we are all looking for. Just remember to turn it off when your done gaming because it does feel ackward to navigate after being so used to the osx settings.

But that's just my experience, no doubt there may be some that don't agree, but to me it's been the perfect solution for some time. This might help at least a few of you that don't mind forking out ~$100 for a mouse to potentially resolve their issue.

defaults write .GlobalPreferences com.apple.mouse.scaling 0

Don't forget to log out & log back in for the changes to take effect. To turn it back replace 0 with 1. Yours may not be 1 - u can check first by doing.

defaults read .GlobalPreferences com.apple.mouse.scaling

Good Luck, hope that helps.

This actually sounds like it could be "THE SOLUTION" 🙂

Many thanks!

I hate the OS lion on my MAC for gaming purposes... Pretty much screwed up my whole steam experience!!! Any thing out there fix it with out downloading an outside program? The script doesnt kill mouse accerleration!

I totally agree with lomis, I am a big fan of Apple since Mid 1900 but I can't understand and never get used to this stupid mouse movement. many times I feel like bash this stupid magic mouse on the floor.

If you want to play games using mouse in Mac OS, you definitely need to adjust the mouse curve using Controllermate.

After extremily frustrating couple of months, trying every mouse and driver available, I have purchesed Microsoft Comfort Mouse 6000 and it works like a charm with Intelli drivers. $15.00. For all of you frustrated PC switchers...

Please sort this out, Apple. Allow us to disable mouse acceleration, and just set the mouse speed. Do it in the same way as Windows does. Thank you.

Dessimat0r wrote:

Please sort this out, Apple. Allow us to disable mouse acceleration, and just set the mouse speed. Do it in the same way as Windows does. Thank you.

FYI, these forums are hosted by Apple but intended for user-to-user discussions. There is no guarantee that anything you post here will ever reach anyone at Apple that could 'sort this out.'

To submit feature requests you can use the http://www.apple.com/feedback/macosx.html link.