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- Insensitive touchpad: defect or normal?
November 13, 2005, 8:03 am
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it seems non-responsive about 20% of the time. That is true even
when I carefully position the cursor first, wait a moment, then
the touchpad in a careful and deliberate manner.
Is that normal behavior for touchpads in general or for Dell touchpads?
I have tried altering various touchpad properties, to no avail:
speed (currently fast), delay after typing (currently short), and touch
sensitivity (currently high).
I realize that some perceived "insensitivity" could be explained by
networking delay when tapping on the touchpad is expected to
cause network action. That is not the situation I am talking about.
I am talking about, for example: moving the cursor in the text window
in which I am typing this posting; selecting a cell in Excel; and yes,
selecting an action on a web page, where I know that the tapping
event was missed.
My suspicion is that interrupts are lost, either due to a driver defect
or because the system is busy at that moment. I am using MS Win
XP Pro SP2. I am not familiar with the internal design of interrupt
and event processing. But based on extensive experience with
other OS designs, I can imagine flaws of this type.
On the other hand, I know nothing about the technology behind
touchpads. Perhaps sensitivity problems are as common as balky
Before I call Dell tech support (on my nickel :-<), I want to know
if it is worth my while -- that is, if such non-responsiveness is
PS: I also notice that the upper-left button seems non-responsive
occassionally, which reinforces my suspicion.
November 13, 2005, 7:22 pm
Re: Insensitive touchpad: defect or normal?
| it seems non-responsive about 20% of the time. That is true even
| when I carefully position the cursor first, wait a moment, then
| the touchpad in a careful and deliberate manner.
| Is that normal behavior for touchpads in general or for Dell touchpads?
FWIW I have a Dell Inspiron 8500 with an Alps Touchpad and it is extremely
responsive/sensitive. Works exactly as you would expect.
I'm not an MVP a VIP nor do I have ESP.
I was just trying to help.
Please use your own best judgment before implementing any suggestions or
No warranty is expressed or implied.
Your mileage may vary.
See store for details. :)
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