| Author |
Message |
Guest
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 Posted:
Sun Nov 13, 2005 5:03 pm Post subject:
Insensitive touchpad: defect or normal? |
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I have a new Dell Latitude D610 laptop. When I tap on the touchpad,
it seems non-responsive about 20% of the time. That is true even
when I carefully position the cursor first, wait a moment, then
single-tap
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:
tapping
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
mice.
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
unusal.
PS: I also notice that the upper-left button seems non-responsive
occassionally, which reinforces my suspicion. |
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HillBillyBuddhist
Guest
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| Posted:
Sun Nov 13, 2005 8:22 pm Post subject:
Re: Insensitive touchpad: defect or normal? |
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<nomail1983@hotmail.com> wrote in message
news:1131879800.966428.139480@o13g2000cwo.googlegroups.com...
|I have a new Dell Latitude D610 laptop. When I tap on the touchpad,
| it seems non-responsive about 20% of the time. That is true even
| when I carefully position the cursor first, wait a moment, then
| single-tap
| 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.
--
Doug
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
advice herein.
No warranty is expressed or implied.
Your mileage may vary.
See store for details. :)
Remove shoes to E-mail.
http://spaces.msn.com/members/hillbillybuddhist/ |
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J. Clarke
Guest
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| Posted:
Sun Nov 13, 2005 11:56 pm Post subject:
Re: Insensitive touchpad: defect or normal? |
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nomail1983@hotmail.com wrote:
| Quote: | I have a new Dell Latitude D610 laptop. When I tap on the touchpad,
it seems non-responsive about 20% of the time. That is true even
when I carefully position the cursor first, wait a moment, then
single-tap
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:
tapping
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
mice.
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
unusal.
PS: I also notice that the upper-left button seems non-responsive
occassionally, which reinforces my suspicion.
|
What you are describing is not "normal". If anything touchpads tend to be
_too_ sensitive.
--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net) |
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