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Old 08-14-2015, 06:08 PM   #1
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Registered: Aug 2015
Location: Germany
Distribution: Linux Mint 17.2 "Rafaela" x64 (Cinnamon)
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Mouse setup

Hello there,

I just switched to Linux Mint 17.2 x64 from Windows 7 a couple of days ago and recently noticed that the mouse is acting... weird. It's like a weird form of cursor acceleration is active. I checked the settings (GUI) they say it's off... but since there's no difference when I move the slider I guess the interface is just bugged.

Do you know where to find the config file to change it manually? I saw there's a mouse-part in xorg.conf, but couldn't make head or tail of it.
Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
I'm using a Gigabyte Krypton.

greetings from germany,
Old 08-14-2015, 07:21 PM   #2
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Most contemporary Linux distros running X do not have an Xorg.conf file, as X as gotten very good at detecting hardware on start-up that they are generally no longer needed for a smoothly functioning GUI.

This thread will tell you how to create one, but it would be best to read up on how it works before messing with it. Also, make a backup of a working Xorg.conf file before making changes, so you have a fall-back position in case your changes break X.

If you provided a more detailed description of what whacky stuff you mouse is doing, perhaps someone here has encountered it before. Also, if you have another mouse to test with, you could rule out a hardware problem with that particular mouse.

Last edited by frankbell; 08-14-2015 at 07:24 PM.
Old 08-15-2015, 03:09 AM   #3
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some form of cursor acceleration is active by default, i think.
can you define what exactly is happening that you want to change?

is this an actual mouse or a touchpad? makes a difference.
Old 08-23-2015, 08:08 AM   #4
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Registered: Aug 2015
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Distribution: Linux Mint 17.2 "Rafaela" x64 (Cinnamon)
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Sorry I didn't answer more recently, were too busy.

I already got a solution for this. A friend told me to create the file /etc/X11/xorg.conf.d/00-mouse-accel-config.conf with this content:
Section "InputClass"
    Identifier "Mouse with No Acceleration"
    MatchIsPointer "yes"
    MatchProduct "Mouse"
    Option "AccelerationProfile" "-1"
I also connected my mouse (a real one, not a pad) directly to my computer, before it was on an usb hub.
That solved the problem for me.


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