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I know I can type in the terminal:

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

to turn off mouse acceleration BUT this requires me to log out and log back in to take effect. The problem is that I'm using a Mac in a network that resets all user preferences every time I log out. So when I log back in, everything is back to default settings. I've tried typing in the terminal:

curl -O http://ktwit.net/code/killmouseaccel
chmod +x killmouseaccel
./killmouseaccel mouse

which turns off mouse acceleration but the problem is that it also resets the tracking speed to very low. If I try to increase the tracking speed in System Preferences, it turns acceleration back on.

Is there a way to disable mouse acceleration without logging out? If not, is there a way to set tracking speed to the max level after using "./killmouseaccel mouse" without turning acceleration back on?

  • There is no killmouseaccel by default, so this seems to be a custom script. What exactly does it do? And if you are using a mouse anyway, can't you change the tracking speed in Preferences? – nohillside Oct 8 '15 at 6:02
  • @patrix killmouseaccel completely disables mouse acceleration. When acceleration is disabled, a fast mouse movement moves the cursor just as much as a slow mouse movement. I can change the tracking speed in Preferences, but as I mentioned above, it turns acceleration back on as soon as I adjust it. – Jorge Luque Oct 8 '15 at 12:15
  • @patrix I read about killmouseaccel in this site – Jorge Luque Oct 8 '15 at 12:23
  • @patrix I edited my post, now I included the whole custom script that kills mouse acceleration. It turns off mouse accel but it resets the tracking speed to a very low setting. – Jorge Luque Feb 4 '16 at 1:03

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