Removing Mouse Acceleration OSX

Try this script. No need to log out IIRC. Been using it for ages, but I prefer turning scaling off manually via terminal.

http://forums3.armagetronad.net/viewtopic.php?t=3364

Sorry I made a mistake in my command.

When you defaults write GlobalPreferences com.apple.mouse.scaling -1

Float is to read the current value, sorry. You don't type that in with the above command.

If a Host wouldn't mind changing that for me. My editing time has expired.

Arg...

Not going so well without my keyboard. Sorry. Have edited above post to avoid confusion.

defaults write GlobalPreferences com.apple.mouse.scaling -1

What version of osx are you using because none of them have worked on 10.6.8, The only fix thats worked for me is the team liquid fix. Ans someone need to talk to the kid who made it and tell him to add sensitivity setting and update it for lion. id be on lion right now if i new it worked for definate.

Your right. It's been a while since I've needed to use it.

Let me look into it & get back to you if I can work out what's wrong.

OK GOT IT!!!

defaults write -g com.apple.mouse.scaling 0

And the other command works, I just forgot a simple dot.

A DOT!!!!!

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

Stupid dot.....

I had to change the DPI & Sensitivity on the mouse itself in Windows, as the Razor Lachesis doesn't have OSX drivers, and those settings are saved on the actual mouse.

FWIW, from the OS X man page for defaults:

-g | -globalDomain | NSGlobalDomain

Specify the global domain. '-g' and '-globalDomain' may be used

as synonyms for NSGlobalDomain.

But it also says:

Note: Since applications do access the defaults system while they're run-

ning, you shouldn't modify the defaults of a running application. If you

change a default in a domain that belongs to a running application, the

application won't see the change and might even overwrite the default.

This basically means this isn't a reliable way to set mouse scaling, which isn't the same thing as acceleration to begin with.

Quite right. I had to work out a new way as my previous one wasn't working. But now we have the dot back, should be fine as stated?

I've been using it for years when I play Nexuiz/Xonotic.

Yea i got a razor imperator. I know the dpi saved on the mouse but i wonder if the sensitivitys save on it aswell. The way im using it i might aswell be using a standard mouse as the dpi's low so the mouse is controllable i wanna set the sensitivity low an the dpi high ill have to have a go next time im near a windows computers 😟.

Yep. It does turn off acceleration completely.

However when I change it, my magicmouse takes 8 table lengths to get to the other side, but when I plug in my razor with the higher settings, it works flawlessly!

😀

Your mouse has on-the-fly sensitivity like mine, unless you have already re-allocated those buttons..?

First introduced with the original Razer Boomslang, On-The-Fly Sensitivity allows you to fine tune the speed of the mouse in game without ever having to pull up driver menus or minimizing the game. Once the button on the mouse that is mapped to "On-The-Fly Sensitivity is pressed, the scroll wheel will allow you to adjust mouse sensitivity from 1 to 10 in increments of .5.

On-the-Fly Sensitivity works with true dpi settings in order to adjust tracking precision. Rather than add unnecessary movement data in order to simulate higher dpi settings, On-the-Fly Sensitivity will work with the mouse's maximum dpi setting and filter out every 2nd, 3rd, etc. count that is not needed by the user. Because of this, a setting of 10.0 will ensure full use of the current dpi setting, while a setting of 5.0 will filter out every 2nd count that the sensor sends, allowing for customizable sensitivities at a flick of the user's scroll wheel.

http://store.razerzone.com/store/razerusa/en_US/pd/productID.171793100/themeID.2 6460500

http://www.razerzone.com/mouseguide/user/technology.php?glossary_id=28

AussieDJ wrote:

Yep. It does turn off acceleration completely.

However when I change it, my magicmouse takes 8 table lengths to get to the other side, but when I plug in my razor with the higher settings, it works flawlessly!

The Mac OS has always turned off acceleration when "tracking speed" (sensitivity) is set to the lowest setting via the system preference. You don't need a terminal command to do that -- in fact, using the preference avoids issues with running apps & possible resets, as the man page mentions.

The problem, as you have noticed, is that unless you have some independent way to change the counts coming from the pointing device (basically, its internal sensitivity to movement), the pointer's sensitivity to movement is very low.

Yes, I'm with you now. That makes perfect sense.

So would it be possible to mimic what the razor does with some kind of software based solution?