TouchPad problem

xinput with TouchPad active (Fn+F1)
⎡ Virtual core pointer                        id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Focaltech Systems FT5926 MultiTouch       id=12   [slave  pointer  (2)]
⎜   ↳ CNTouch Touch Device                      id=11   [slave  pointer  (2)]
⎣ Virtual core keyboard                       id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard                 id=5    [slave  keyboard (3)]
    ↳ Power Button                                id=6    [slave  keyboard (3)]
    ↳ Video Bus                                   id=7    [slave  keyboard (3)]
    ↳ Power Button                                id=8    [slave  keyboard (3)]
    ↳ Sleep Button                                id=9    [slave  keyboard (3)]
    ↳ USB2.0 Camera                               id=10   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard                id=13   [slave  keyboard (3)]

xinput without TouchPad active (Fn+F1)
⎡ Virtual core pointer                        id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Focaltech Systems FT5926 MultiTouch       id=12   [slave  pointer  (2)]
⎣ Virtual core keyboard                       id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard                 id=5    [slave  keyboard (3)]
    ↳ Power Button                                id=6    [slave  keyboard (3)]
    ↳ Video Bus                                   id=7    [slave  keyboard (3)]
    ↳ Power Button                                id=8    [slave  keyboard (3)]
    ↳ Sleep Button                                id=9    [slave  keyboard (3)]
    ↳ USB2.0 Camera                               id=10   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard                id=13   [slave  keyboard (3)]

Focaltech is the TouchScreen which works !

xinput --list-props 11
Device 'CNTouch Touch Device':
    Device Enabled (134):   1
    Coordinate Transformation Matrix (136): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
    Device Accel Profile (265): 0
    Device Accel Constant Deceleration (266):   1.000000
    Device Accel Adaptive Deceleration (267):   1.000000
    Device Accel Velocity Scaling (268):    10.000000
    Device Product ID (254):    10574, 4097
    Device Node (255):  "/dev/input/event5"
    Evdev Axis Inversion (269): 0, 0
    Evdev Axis Calibration (270):   <no items>
    Evdev Axes Swap (271):  0
    Axis Labels (272):  "Abs MT Position X" (263), "Abs MT Position Y" (264), "Abs MT Touch Major" (260), "Abs MT Touch Minor" (261), "Abs MT Orientation" (262), "None" (0), "None" (0), "None" (0), "None" (0)
    Button Labels (273):    "Button Unknown" (257), "Button Unknown" (257), "Button Unknown" (257), "Button Wheel Up" (140), "Button Wheel Down" (141)
    Evdev Middle Button Emulation (274):    0
    Evdev Middle Button Timeout (275):  50
    Evdev Third Button Emulation (276): 0
    Evdev Third Button Emulation Timeout (277): 1000
    Evdev Third Button Emulation Button (278):  3
    Evdev Third Button Emulation Threshold (279):   20
    Evdev Wheel Emulation (280):    0
    Evdev Wheel Emulation Axes (281):   0, 0, 4, 5
    Evdev Wheel Emulation Inertia (282):    10
    Evdev Wheel Emulation Timeout (283):    200
    Evdev Wheel Emulation Button (284): 4
    Evdev Drag Lock Buttons (285):  0

xinput list 11
CNTouch Touch Device                        id=11   [slave  pointer  (2)]
    Reporting 9 classes:
        Class originated from: 11. Type: XIButtonClass
        Buttons supported: 5
        Button labels: "Button Unknown" "Button Unknown" "Button Unknown" "Button Wheel Up" "Button Wheel Down"
        Button state:
        Class originated from: 11. Type: XIValuatorClass
        Detail for Valuator 0:
          Label: Abs MT Position X
          Range: 0.000000 - 4095.000000
          Resolution: 0 units/m
          Mode: absolute
          Current value: 680.000000
        Class originated from: 11. Type: XIValuatorClass
        Detail for Valuator 1:
          Label: Abs MT Position Y
          Range: 0.000000 - 4095.000000
          Resolution: 0 units/m
          Mode: absolute
          Current value: 384.000000
        Class originated from: 11. Type: XIValuatorClass
        Detail for Valuator 2:
          Label: Abs MT Touch Major
          Range: 0.000000 - 4095.000000
          Resolution: 0 units/m
          Mode: absolute
          Current value: 0.000000
        Class originated from: 11. Type: XIValuatorClass
        Detail for Valuator 3:
          Label: Abs MT Touch Minor
          Range: 0.000000 - 4095.000000
          Resolution: 0 units/m
          Mode: absolute
          Current value: 0.000000
        Class originated from: 11. Type: XIValuatorClass
        Detail for Valuator 4:
          Label: Abs MT Orientation
          Range: 0.000000 - 1.000000
          Resolution: 0 units/m
          Mode: absolute
          Current value: 0.000000
        Class originated from: 11. Type: XIValuatorClass
        Detail for Valuator 5:
          Label: None
          Range: 0.000000 - 4095.000000
          Resolution: 0 units/m
          Mode: absolute
          Current value: 0.000000
        Class originated from: 11. Type: XIValuatorClass
        Detail for Valuator 6:
          Label: None
          Range: 0.000000 - 4095.000000
          Resolution: 0 units/m
          Mode: absolute
          Current value: 0.000000
        Class originated from: 11. Type: XITouchClass
        Touch mode: direct
        Max number of touches: 10