Set mouse pointer resolution a.k.a sensitivity interactively?

[Simon Thum]

On 01/07/2015 11:14 PM, Peter Hutterer wrote:
> On Wed, Jan 07, 2015 at 02:22:41PM +0100, Simon Thum wrote:
>> Hi Peter,
>>
>> the third column is for offsets, you should only ever use these with
>> absolute coordinates/devices so that's fine. Scaling, shearing and rotation
>> should be possible with the first two columns, and those also make (some)
>> sense for relative devices.
>>
>> http://en.wikipedia.org/wiki/Transformation_matrix
>
> thanks. I realised this shortly after I sent the first email when Hi-Angel
> posted the matrix. bit of a facepalm moment :)

Yeah, I hadn't assumed you REALLY don't know. Consider this a friendly 
reminder of the things you didn't knew you know ;)

Cheers,

Simon

>
> Cheers,
>     Peter
>
>>
>> On 01/05/2015 10:30 PM, Peter Hutterer wrote:
>>> On Mon, Jan 05, 2015 at 08:43:41PM +0100, Simon Thum wrote:
>>>> You can use xinput properties, those can also be set via inputclass sections
>>>> if I'm not mistaken.
>>>>
>>>> man xinput should get you to it, if not install xinput. Two optionas can be
>>>> used to achive what you describe:
>>>>
>>>> Coordinate Transformation Matrix (140): 1.000000, 0.000000, 0.000000,
>>>> 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
>>>
>>> fwiw, for relative devices the only thing you can do here is rotation (we
>>> drop the third column), I don't think you can use the matrix to slow the
>>> mouse down. unless there's some matrix that I'm not aware of.
>>>
>>> Cheers,
>>>     Peter
>>>
>>>> Device Accel Constant Deceleration (271):       1.000000
>>>>
>>>> With the former you can do anything, the latter can only be used to slow
>>>> down using values > 1.
>>>
>>>> On 01/05/2015 04:47 PM, Hi-Angel wrote:
>>>>> I am one of those crazy peoples who don't want the pointer to be
>>>>> accelerated: so, if I moved the mouse m space, the pointer would be
>>>>> always moved n space — no matter how fast/slow I did it.
>>>>> I just want the pointer to move faster, i.e. increase its sensitivity.
>>>>> My search gave me that the only solution is to insert  in «xorg.conf»
>>>>> in section «mouse InputDevice section» file a line like
>>>>>
>>>>> Option "Resolution" "400"
>>>>>
>>>>> But of course I don't quite believe: how many times a user would
>>>>> needed to restart XServer to find an apropriate pointer speed? Five?
>>>>> Ten? More? So, in the end I decided to ask here: is there some command
>>>>> to set a pointer resolution?
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>>>
>