#7788 BLOC 8.2.0 (: Touchpad behavior deteriorates under joyride-2212, joyride-2230

[Zarro Boogs per Child]

#7788: Touchpad behavior deteriorates under joyride-2212, joyride-2230
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   Reporter:  tvoverbeek  |       Owner:  dilinger             
       Type:  defect      |      Status:  new                  
   Priority:  blocker     |   Milestone:  8.2.0 (was Update.2) 
  Component:  kernel      |     Version:  olpc-3               
 Resolution:              |    Keywords:  8.2.0:? blocks?:8.2.0
Next_action:  diagnose    |    Verified:  0                    
  Blockedby:              |    Blocking:                       
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Comment(by dilinger):

 Thanks for the logs!

 The lack of recalibration messages in 708 does not mean that the cursor
 isn't messed up.  When you boot and use 708, is the mouse cursor jumpy at
 all?

 There is a lot of strangeness in your 2298 logs.  The fact that 3/5 times,
 the driver detects miscalibration at around the same time (160s after
 boot) makes me wonder what's happening there.  What point in the boot
 sequence are you at when it happens?  Is sugar completely up?  Are you
 launching any activities, or doing anything else other than moving the
 cursor around?

 The eth0/msh0 messages makes me think that NetworkManager has just come
 up, so the hardware was miscalibrated right from the start.  I wonder if
 the large amount of EC commands happening during boot are screwing
 something up.. I'm also wondering wtf the PCI EHCI messages are about.

 Do you keep your finger on the touchpad during bootup?  Also, when you see
 the miscalibration errors in the logs (and you remove your fingers from
 the touchpad for a few seconds), does the touchpad driver fix itself, or
 is the cursor still jumpy afterwards?

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Ticket URL: <http://dev.laptop.org/ticket/7788#comment:14>
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