Re: persistent keyboard problems
On Tue, 15 Jan 2002 14:29:18 -0600, Nori Heikkinen wrote:
>on Tue, 15 Jan 2002 10:52:29AM +0100, marTin insinuated:
>> xset from the console (manually) works?
>
>yes.
>
>> xset in .xsession, and executed from the console works?
< excise a bunch of stuff >
>
>i've got the lines that should be setting the keyboard rate first, but
>even though they seem to be working, the passphrase that i enter right
>after it is sensitive to aaaaa's and ssssss's, obviously *not* having
>set the keyboard rate.
Nori, I don't recall if this suggestion has been tried, and if so, never
mind.
If your problems with repeated keys occurs only on certain keys, it
could very well be a hardware fault. Were it a software phenomenon, I
would expect *every* key to be affected. A basic problem with any
mechanical switching device (read 'key') is bounce. That is, as the
switch makes, the contacts bounce back creating a break, followed by
another make, followed.... Should the spring-rate/mass combo approach
resonance, or damping be insufficient, this make-break sequence can be
excessive, going on for longer than the built in delay.
Which brings up 'delay.' Delay can be created as simply as putting a
capacitor across the switch points, or looping a bunch of gates that
latch out the switch condition after everything has settled down. These
can go bad too.
Any part of the above going bad can cause *your* single keystroke to be
seen by the polling device as multiple strokes. So, if you haven't yet,
beg borrow or steal another keyboard to see if the problem persists.
gt--the pedant has left the hall
Yes I fear I am living beyond my mental means--Nash
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