tradervics
Bronze

Re: Inspiron 1520 TouchPad Troubles :\ Please Help!

"of course I was pretty exasperated and disappointed when after setting the machine up the pointer kept jumping all over the place."

If you want some fun, trying playing chess with an erratic pointer.

Good times....

Vostro 1500

  • Core2Duo T5270 1.4GHz
  • 2GB 800MHz DIMM
  • Fujitsu 120GB SATA
  • GeForce 8400M GS
  • 15.4" WXGA+
  • XPProSP3/VistaHomeSP1 Dual Boot
  • BIOS A06

 

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nanokismet
Copper

Inspiron 1525 touchpad / pointer problem

Unfortunately it looks like I also have the floating pointer problem on my brand new Inspiron 1525. The label on the power adapter reads: CN-0YT886-73245-7CH-3479
REV A00

 

I tried adjusting the touchpad sensitivity, but that didn't help at all. A couple days ago I downloaded and installed the ALPS Pointing Device Driver (whatever that is) from the Dell Updates page, but it doesn't seem to have helped much. I haven't been able to determine exactly what triggers this weird jumping and floating behavior with my pointer -- it isn't happening all the time although when it does happen, it is maddening. I almost alway use my laptop with the power supply plugged in.

To test what is going awry, Bill B. has suggested that I try running my 1525 just on battery which I'm doing right now (at 82%) with no problem. Then I will try running it with the power adapter plugged in and presumably recharging.  Finally I will remove the battery and just run it on the adapter -- a challenge as I have never removed a laptop battery before!  I'll keep you all posted on the outcome of my experiments.

 

Is anyone else having this problem with the Inspiron 1525?

 

- Nanokismet

 

Inspiron 1525

2 GB Memory

Intel Pentium Dual CPU T2330, 1.60 GHz

Windows Vista Home Premium

 

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nanokismet
Copper

Re: Inspiron 1525 touchpad / pointer problem

Okay, everyone, here's my report:

 

My Inspiron 1525's touchpad/pointer worked fine on battery with the AC adapter unplugged.  I let the battery run down to 77%.  Immediately after plugging in the AC adapter, the pointer started jumping around, and about five minutes later, the pointer started floating.

 

I sucessfully removed the battery (a cinch --easier than removing a flashlight battery) and am currently running the laptop without a battery.  I had one short instance of the jumping pointer a little while ago when one of those flashy video banner ads appeared on the local newspaper's website at the same time as one of the people on my buddylist signed in or out (I could tell by the sound effect). 

 

Uh- Oh. I lost control of my cursor just now for a minute or so when I was editing the paragraph above.  

 

Sooo...  My Inpiron 1525's touchpad / pointer seems to work fine in battery mode, has a problem definitely when the AC power adapter is plugged in and recharging, acts out sometimes when running on AC with the battery installed (I think this happens when the computer has been running for a while), and sometimes when the battery has been removed and the computer is running from the power cord. 

 

- Nanokismet

 

Inspiron 1525

2 GB Memory

Intel Pentium Dual CPU T2330, 1.60 GHz

Windows Vista Home Premium

 

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bporter27
Copper

Re: Inspiron 1520 TouchPad Troubles :\ Please Help!

For everyone that is having a problem with your Touchpad. Now with your Inspiron 1520 is your operating system all Windows Vista because I have heard from many people that Vista has a lot of problem. My solution would be to get a copy of Windows XP because that is what I run though I do have a Inspiron 9400 and never had a problem with it. Try XP and if that resolves your issue then either keep XP or see if Dell or contact Microsoft to see if they have some kind of patch to fix that problem for you.
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topper12345
Nickel

Re: Inspiron 1520 TouchPad Troubles :\ Please Help!

I am using XP Home. And, a previous poster I think mentioned using XP with the same problems. I do have a Vostro but it is basically the same thing. Just send Bill a PM with your service tag and he will send out the new adapter to you and you send your defective one back in the same box. They even include a shipping label. All free of charge. Check out page 4 of this thread to confirm he wants you to send a PM to him to get a new adapter which so far seems to have solved the mouse going insane problems.
Message Edited by topper12345 on 02-25-2008 08:03 AM
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trwww
Phosphor

Re: Inspiron 1520 TouchPad Troubles :\ Please Help!

@bporter27:

 

The problem isn't vista specific I ordered my 1520 w/ windows xp and it is happening here also.

 

Message Edited by trwww on 02-25-2008 06:31 PM
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dicebucket
Nickel

Re: Inspiron 1520 TouchPad Troubles :\ Please Help!

You guys should go back and read message #55 --

 

I am totally convinced that the TouchPad problem is a matter of its susceptability to electrical "noise", or interference.  My situation (identical symptoms that everybody is reporting) was due to an old SimpleTech external hard drive in the vacinity of my wife's desktop.  Someone else reported these symptoms when in the vacinity of an old vaccuum cleaner whenever it was turned on. 

 

You people who are changing power adapters are merely changing one that generates enough interference to make a different to others that don't. 

 

Try placing the power adapter module as far away of your computer as possible, and/or stick it in a metal cannister, and see if that makes a difference.

 

This is a horribly frustrating problem until a way is found to fix it -- I'm just suggesting that Dell experiment with additional shielding of the TouchPad, and not create the impression that this is due to "faulty" power adapters. 

 

 

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Anonymous
Not applicable

Re: Inspiron 1520 TouchPad Troubles :\ Please Help!

Didn't mean to create an impression. It's just that so far, every single replaced adapter has resolved the issue. Investigating ESD factors is up to the failure analysis guys who had me request whole unit captures- of which I was able to beg my way to 2, even with upgrades offered. Hopefully that will be enough hardware for them to do what they do. In the meantime, I am going to do what I do, and replace the part that seems to be correcting the issue on every single case reported to me here so far.

 

Did you try your HDD in a can? Did you get a replacement adapter and put it on top of the touchpad to test, or did you just prove one side of the theory?... Curious to know. And as far as vacuum cleaners, they are not regulated to pass any ESD testing with PC's that I have ever heard of. They are notorious for causing ESD issues and have been since the inception of the PC.

Message Edited by DELL-Bill B on 02-26-2008 03:09 PM
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Highlighted
JasonBrPA
Copper

Re: Inspiron 1520 TouchPad Troubles :\ Please Help!

I have this problem with my vostro 1500.  It did it right out of the box.  I have not had the problem with the arrow while the touchpad is not in use, however when you are using the touchpad, it will all of the sudden jump half way across the screen from where it was, and registering random clicks. (almost like someone was trying to pull the cursor away to the side)  I played with the sensitivity settings but it didn't matter what it was set on.  I experienced the problem in both Windows Vista and OpenSuse Linux 10.3.  I noticed that it normally did it at home, and not while I'm in class during the day, and It wasnt until I found this thread that I realized that when i'm in class i'm using the battery (minimal touchpad problems) and when i'm at home i'm using AC (many touchpad problems).  I've contacted Bill for the adapter fix, so hopefully that will resolve most of my problems.
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Satwick
Copper

Re: Inspiron 1520 TouchPad Troubles :\ Please Help!

I just recevied the 65 Ac adapter and it seems to fix the problem for the time being , the only problem I face is that, my system tells me that 65 Ac adapter is being plugged , so that system would take more time  charge and may run slow , I guess we just have to deal with this prompt , instead of having the curser moving  drastically

 

I couldnt find the link ,I read that pdf file  day before yesterday ,in that a engineer found out why the problem is occurring , I don’t know If I Am wrong ,but it depends on the sin wav theory (can hardly remember what he wrote )…will try to look at at again and will post that link here  

 

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