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      Introducing the PalmCheck feature of the ThinkPad UltraNav Driver - ThinkPad


      The PalmCheck feature enables the ThinkPad(R) UltraNav(R) Driver to check users’ input behaviors to prevent unintentional input from the touch pad. When one of the following input behaviors is detected, the ThinkPad UltraNav Driver will define the touch pad input as unintentional and disable the touch pad. After the detected input behavior finishes, the touch pad might still be disabled for about one second. Then, the touch pad will resume operation.

      • When the user touches a large area on the touch pad, the ThinkPad UltraNav Driver defines this touch behavior as the palm contact and disables the touch pad.
      • When the user uses the keyboard and the touch pad at the same time, the ThinkPad UltraNav Driver disables the touch pad.
      • When the user uses the TrackPoint and the touch pad at the same time, the ThinkPad UltraNav Driver disables the pointing and gesturing functions of the touch pad.


      Affected configurations

      Supported ThinkPad Systems:

      • Edge 11, Edge 13, Edge 14, Edge 15
      • Edge E10, Edge E30, Edge E31, Edge, E40, Edge E50
      • Edge E120, Edge E125, Edge E220s, Edge E320, Edge E325
      • Edge E420, Edge E420s, Edge E425, Edge E520, Edge E525
      • L410, L412, L420, L421, L510, L512, L520
      • Mini 10
      • R40, R50, R50p, R51, R52, R60
      • R61
        Machine types: 7732, 7733, 7734, 7735, 7736, 7737, 7738, 7742, 7743, 7744, 7751, 7753, 7754, 7755, 8942, 8943, 8944, 8945, 8947, 8948, 8949
      • R61i
        Machine types: 7732, 7742, 8943
      • R400
      • SL410, SL510
      • T30
      • T40, T40p, T41, T41p, T42, T42p, T43, T43p
      • T60, T60p, T61, T61p
      • T400, T400s, T410, T410i, T410s, T410si, T420, T420i, T420s, T420si
      • T500, T510, T510i, T520, T520i
      • W500, W510, W520
      • W700, W700ds, W701, W701ds
      • X1
      • X100e, X120e, X121e, X201, X201i, X201s, X201 Tablet
      • X220, X220i, X220 Tablet, X220i Tablet
      • Z60m, Z60t, Z61m, Z61p, Z61t

      Supported Operating System:

      • Microsoft Windows 7 32-bit, 64-bit
      • Microsoft Windows Vista 32-bit, 64-bit
      • Microsoft Windows XP Professional x64 Edition
      • Microsoft Windows XP Home Edition, Professional
      • Microsoft Windows XP Tablet PC Edition 2005 SP2, SP3



      Update to ThinkPad UltraNav Driver and later versions.


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      • Alias ID:
      • Document ID: HT062696
      • Last Updated :17 Jun 2014
      • © 2016 Lenovo