evdev input module and multiple X screen support

[Curtis Rubel]

Peter,

  I did attempt to try setting the values to those I sent you below
and when I touch any of the touch screens, my cursor still remains in
the first monitor screen and I never see it move to any of the other
3 touch monitors.

  Is there something else I need to do other than set the xinput 
settings
to get the new settings to take effect?


Regards,

Curtis


On 12.12.2011 09:02, Curtis Rubel wrote:
> Peter,
>
>  I have been looking at this for a while and have not been able
> to get my system setup correctly as it is a rather complex setup.
>
> I have 4 monitors on this system.  The first one is NOT a touch
> screen and is at 800X600, the other 3 are touch screens at 1280X1024,
> with the center of those 3 rotated to portrait mode.  I am not quite 
> sure
> how to proceed looking at the examples provided since none of
> them really give me any idea of what to do about my first monitor
> which is not a touch device.
>
> I am assuming that I still need to account for it in the equations,
> is that a valid assumption?
>
> #xinput list
> â¡ Virtual core pointer                         id=2    [master 
> pointer (3)]
> â   â³ Virtual core XTEST pointer               id=4    [slave  
> pointer (2)]
> â   â³ TouchScreenLeft                          id=6    [slave  
> pointer (2)]
> â   â³ TouchScreenCenter                        id=7    [slave  
> pointer (2)]
> â   â³ TouchScreenRight                         id=8    [slave  
> pointer (2)]
> ⣠Virtual core keyboard                        id=3    [master 
> keyboard (2)]
>     â³ Virtual core XTEST keyboard              id=5    [slave  
> keyboard (3)]
>     â³ Power Button                             id=9    [slave  
> keyboard (3)]
>     â³ Power Button                             id=10   [slave  
> keyboard (3)]
>     â³ Logitech USB Keyboard                    id=11   [slave  
> keyboard (3)]
>     â³ Logitech USB Keyboard                    id=12   [slave  
> keyboard (3)]
>
> #xinput list-props "TouchScreenLeft"
> Device 'TouchScreenLeft':
>         Device Enabled (117):   1
>         Coordinate Transformation Matrix (119): 1.000000, 0.000000,
> 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
>
> #xinput list-props "TouchScreenCenter"
> Device 'TouchScreenCenter':
>         Device Enabled (117):   1
>         Coordinate Transformation Matrix (119): 1.000000, 0.000000,
> 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
>
> #xinput list-props "TouchScreenRight"
> Device 'TouchScreenRight':
>         Device Enabled (117):   1
>         Coordinate Transformation Matrix (119): 1.000000, 0.000000,
> 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
>
> So first to make it a little easier no rotation for now on #2:
>
> 0:
> 800/(800 + (3*1280) )   0        0
> 0               600/1024         0
> 0                  0             1
>
> 1:
> 1280/(800 + (3*1280) )  0     800/(800 + (3*1280) )
> 0                   1024/1024    0
> 0                       0        1
>
> 2:
> 1280/(800 + (3*1280) )  0     800+1280/(800 + (3*1280) )
> 0                   1024/1024         0
> 0                       0             1
>
> 3:
> 1280/(800 + (3*1280) )  0     800 + (2*1280)/(800 + (3*1280) )
> 0                   1024/1024               0
> 0                       0                   1
>
> Does that look about correct, because the math on
> the 3rd number or c2 from the equation examples does
> not seem to add up properly to equal a total of 1.
>
> Regards,
>
> Curtis
>
>
>
>
> On 09.12.2011 23:37, Peter Hutterer wrote:
>> On Fri, Dec 09, 2011 at 12:47:10PM -0500, Curtis Rubel wrote:
>>> Hello xorg...
>>>
>>> Can someone tell me if multiple X screen support is planned for
>>> the evdev input module?
>>>
>>> We have a number of multiple X screen systems here running Xorg 
>>> using
>>> the older evtouch input library and from what I can see it appears 
>>> this
>>> module is no longer supported and being replaced by the evdev 
>>> module.
>>> Is this the case or has the evtouch input library just not been
>>> updated yet??
>>>
>>> Any help in this matter would be greatly appreciated...as the touch
>>> screen vendor
>>> ELO does not support multiple USB touchscreens on a single 
>>> system...
>>
>> input drivers don't do multi-screen handling (anymore), it's all 
>> handled by
>> the server now. See the documentation here:
>> http://wiki.x.org/wiki/XInputCoordinateTransformationMatrixUsage
>>
>> Cheers,
>>   Peter

-- 
Curtis Rubel
Senior Development Engineer
Compro Computer Services, Inc.
105 East Drive - Melbourne, Florida, 32904
Phone: 321-727-2211
email: crubel at compro.net
Web: http://www.compro.net

"An ISO 9001:2008 Registered Company"

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