Openmoko Bug #2137: stable-tracking lacks touchscreen jitter reduction patch

Openmoko Public Trac bugs at
Thu Nov 27 03:11:32 CET 2008

#2137: stable-tracking lacks touchscreen jitter reduction patch
 Reporter:  TimoJyrinki      |          Owner:  openmoko-kernel
     Type:  defect           |         Status:  new            
 Priority:  normal           |      Milestone:                 
Component:  System Software  |        Version:                 
 Severity:  normal           |       Keywords:                 
 Haspatch:  0                |      Blockedby:                 
Estimated:                   |    Patchreview:                 
 Blocking:                   |   Reproducible:                 

Comment(by arhuaco):

 We're trying to improve this driver. We have improved this driver a little
 but still we have to make it better.

 I'm about to send this patch that makes it easier to modify in order to
 make it more accurate:

 It would be great to hear some feedback.

 You should never miss an UP event this this one.

 It includes the Jitter detection logic and the same timeout Tick proposed.

 > Up-down-clicks are not always fixed, btw... :(

 What do you mean? That you get erratic coordinates?

 There is an issue with erratic clicks, specially with little pressure...
 We have to explore alternatives to solve this issue. I'm studying one of
 them (and I have another one pending).

Ticket URL: <> <>
openmoko trac

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