Re: Re: How to set per-device mouse sensitivity : Revisited !

On Thu, Apr 22, 2010 at 01:37:49PM +0200, Mickael Chazaux wrote:
> Hi,
> 
> 
> Sorry for the noise, I found a solution.
> 
> The installed x11-drivers/xf86-input-evdev was 2.3.2 (currently
> stable). After installing xorg 1.8.0, I just rebuilt it as
> recommended.
> I just tried the 2.4.0, currently ~amd64, and the settings apply.
> 
> Here is the final config file :
> 
> Section "InputClass"
>         Identifier "nomouse"
>         MatchDevicePath "/dev/input/mouse*"
>         Option "Ignore" "true"
> EndSection
> 
> Section "InputClass"
>         Identifier "My mouse"
>         MatchProduct "Bluetooth Laser Travel Mouse"
>         MatchDevicePath "/dev/input/event12"
>         Option "AccelerationProfile" "-1"
>         Option "ConstantDeceleration" "10"
> EndSection
> 
> (yes, in a separated file this time (for a quick hack, I used first
> the file I known parsed by Xorg ;-) )
> 
> And the relevant part of the log ( Xorg :1 -retro -verbose 5 2>log ):
> 
> (II) config/udev: Adding input device Bluetooth Laser Travel Mouse
> (/dev/input/event12)
> (**) Bluetooth Laser Travel Mouse: Applying InputClass "My mouse"
> (**) Bluetooth Laser Travel Mouse: Applying InputClass "evdev pointer catchall"
> (**) Bluetooth Laser Travel Mouse: always reports core events
> (**) Bluetooth Laser Travel Mouse: Device: "/dev/input/event12"
> (II) Bluetooth Laser Travel Mouse: Found 12 mouse buttons
> (II) Bluetooth Laser Travel Mouse: Found scroll wheel(s)
> (II) Bluetooth Laser Travel Mouse: Found relative axes
> (II) Bluetooth Laser Travel Mouse: Found x and y relative axes
> (II) Bluetooth Laser Travel Mouse: Configuring as mouse
> (**) Bluetooth Laser Travel Mouse: YAxisMapping: buttons 4 and 5
> (**) Bluetooth Laser Travel Mouse: EmulateWheelButton: 4,
> EmulateWheelInertia: 10, EmulateWheelTimeout: 200
> (II) XINPUT: Adding extended input device "Bluetooth Laser Travel
> Mouse" (type: MOUSE)
> (**) Bluetooth Laser Travel Mouse: (accel) keeping acceleration scheme 1
> (**) Option "ConstantDeceleration" "10"
> (**) Bluetooth Laser Travel Mouse: (accel) constant deceleration by 10.0
> (**) Option "AccelerationProfile" "-1"
> (**) Bluetooth Laser Travel Mouse: (accel) acceleration profile -1
> (**) Bluetooth Laser Travel Mouse: (accel) acceleration factor: 2.000
> (**) Bluetooth Laser Travel Mouse: (accel) acceleration threshold: 4
> (II) Bluetooth Laser Travel Mouse: initialized for relative axes.
> (II) config/udev: Adding input device Bluetooth Laser Travel Mouse
> (/dev/input/mouse2)
> (**) Bluetooth Laser Travel Mouse: Ignoring device from InputClass "nomouse"
> 
> We can see the settings are applied.
> 
> Another question is : I have to be root to edit this file. Is it
> possible to put some settings under $HOME?
> I have to be root to change the mouse sensitivity setting, and as I
> can't bear fast mice, some people like them.

No, as far as I know. But you can use xinput to modify it on runtime (though
it's harder to make it just work this way when you plug in/connect your
mouse). If it is your "personal" preference, you should set it up in your X session, 
not a global X configuration... xorg.conf and other are global configuration
for all users. X server  starts up before you log in to your session, so it would not
know which user's config to load. 

yoyo@tabletka ~ $ xinput list
⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Wacom Serial Tablet PC Pen Tablet/Digitizer       id=8    [slave  pointer  (2)]
⎜   ↳ Wacom Serial Tablet PC Pen Tablet/Digitizer eraser        id=7    [slave  pointer  (2)]
⎜   ↳ TPPS/2 IBM TrackPoint                     id=9    [slave  pointer  (2)]
⎜   ↳ Bluetooth Wireless Laser Mouse            id=14   [slave  pointer  (2)]
⎣ Virtual core keyboard                         id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ↳ ThinkPad Extra Buttons                    id=6    [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=10   [slave  keyboard (3)]
    ↳ Sleep Button                              id=11   [slave  keyboard (3)]
    ↳ Video Bus                                 id=12   [slave  keyboard (3)]
    ↳ Power Button                              id=13   [slave  keyboard (3)]
yoyo@tabletka ~ $ xinput list-props 14
Device 'Bluetooth Wireless Laser Mouse':
        Device Enabled (145):   1
        Device Accel Profile (264):     0
        Device Accel Constant Deceleration (265):       1.000000
        Device Accel Adaptive Deceleration (267):       1.000000
        Device Accel Velocity Scaling (268):    10.000000
...
yoyo@tabletka ~ $ xinput set-float-prop "Bluetooth Wireless Laser Mouse"  "Device Accel Constant Deceleration" 3.0

yoyo