[Trac #1297] Pressing two adjacent keys at the same time fails

[Zarro Boogs per Child]

#1297: Pressing two adjacent keys at the same time fails
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 Reporter:  cjb        |        Owner:  mlj      
     Type:  defect     |       Status:  new      
 Priority:  normal     |    Milestone:  Untriaged
Component:  keyboards  |   Resolution:           
 Keywords:             |  
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Comment (by ethrop):

 Chris,
 The behaviour you mention is "normal". The keyboards are electrically
 divided into four or five zones I believe, and a zone can only provide one
 signal at a time. Nat will know what those are as he wrote the algorithm
 to use multiple keys. Certain combinations of keys cannot be used in
 TamTam . When you see the results "fg" in the console, it is becasue you
 have not hit the keys at _exactly_ the same time. The last letter has
 simply usurped the signal from the first in the same zone. You will see
 this in TamTam precisely because when the keys are held down, they rely on
 the keys having an independent signal that is not interrupted by another.
 Some modern keyboards do not exhibit this behaviour (Mac keyboards for
 instance)  but most cheaper keyboards will. I'm afraid nothing can be done
 about this unless a different type of keyboard is used.

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Ticket URL: <http://dev.laptop.org/ticket/1297#comment:1>
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