#10419 NORM Not Tri: XO 1.5 high-pitched noise/whine on trackpad movement in certain activites on external power

Zarro Boogs per Child bugtracker at laptop.org
Mon Nov 1 16:26:39 EDT 2010


#10419: XO 1.5 high-pitched noise/whine on trackpad movement in certain activites
on external power
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           Reporter:  greenfeld  |       Owner:  wad          
               Type:  defect     |      Status:  new          
           Priority:  normal     |   Milestone:  Not Triaged  
          Component:  hardware   |     Version:  not specified
         Resolution:             |    Keywords:               
        Next_action:  never set  |    Verified:  0            
Deployment_affected:             |   Blockedby:               
           Blocking:             |  
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Comment(by greenfeld):

 Setting processor.max_cstate=1 in olpc.fth causes the noise to go away;
 removing it causes the noise to come back.

 This is interesting in that it works but contradicts the same fix not
 working for Scratch in #9655.

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Ticket URL: <http://dev.laptop.org/ticket/10419#comment:4>
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