#11676 NORM Not Tri: Tune touchscreen driver / stack for off the shelf capacitive stylus use

[Zarro Boogs per Child]

#11676: Tune touchscreen driver / stack for off the shelf capacitive stylus use
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 Reporter:  garycmartin  |                 Owner:  pbrobinson   
     Type:  task         |                Status:  new          
 Priority:  normal       |             Milestone:  Not Triaged  
Component:  distro       |               Version:  not specified
 Keywords:               |           Next_action:  never set    
 Verified:  0            |   Deployment_affected:               
Blockedby:               |              Blocking:               
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 Current testing on an XO-1.75 prototype with touchscreen responds very
 poorly with off the shelf capacitive stylus - useful for more details
 writing, sketching, painting.

 Two styluses I've tested don't trigger a touch event unless you apply
 excessive pressure to flatten out the 'nib' to increase its contact size.
 Re-testing, with a stylus to hand (boxwave capacitive ipad stylus), its
 'nib' is a 5mm high dome of diameter 7mm. On an iPad, gentle pressure
 forming a 5-6mm diameter contact area triggers touch events. For the
 XO-1.75 prototype heavy pressure is required to deform the 'nib' to a 9mm
 diameter contact area before an event it triggered (too much pressure to
 move the stylus over the screen surface to draw).

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Ticket URL: <http://dev.laptop.org/ticket/11676>
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