#2804 BLOC Update.: Cursor sometimes goes strange

[Zarro Boogs per Child]

#2804: Cursor sometimes goes strange
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  Reporter:  philipmac  |       Owner:  bernie  
      Type:  defect     |      Status:  assigned
  Priority:  blocker    |   Milestone:  Update.2
 Component:  hardware   |     Version:          
Resolution:             |    Keywords:          
  Verified:  0          |  
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Changes (by rsmith):

  * component:  kernel => hardware


Comment:

 Gary and I have found root cause of this bug here at CSMC in China using
 C2 boards.

 If the the touchpad in use at the time auto-recalibration occurs the
 calibration is wrong.  Then the touchpad just starts spewing data.

 Confirmed with a scope watching the touchpad clock and data lines.

 Forcing a re-cal _sort_ of fixes the problem.  It make the constant stream
 of data stop but after that the operation of the mouse is still really
 jumpy.

 To duplicate just have your thumb on the touchpad at the time you do the 4
 finger re-cal.

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Ticket URL: <http://dev.laptop.org/ticket/2804#comment:40>
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