Cursor Jumps All Over the place while typing.

Hi  Robert-Zurich,

Welcome to the Community,

Sorry about your experience.I would like to see if I can help you.

About the electric charge sensation,could you confirm if you feel that only when AC adapter is connected to the system or does it happen even while using system with battery only?

Please private message me your system service tag number.To private message click on my user name,click start conversation.

I will check your system details  and get back to you.

I have carried out some tests that may help out people with a similar problem pin-point their problem.

The power socket I moved from being plugged into an extension cable to directly in the wall. This seemed to help a lot, but I still get the problem now and again. I unplugged the power and ran from the battery for 2 hours. The problem seemed to go away except once or twice during this time.

So it does imply that this laptop design is sensitive to electrical charge

Then, I found this link regarding issues with laptops and touchpads

en.wikipedia.org/.../Touchpad

"If the computer is powered by an external power supply unit (PSU), the PSU will influence the virtual ground effect, with the influence depending on the circuitry of the PSU.Laptop manufacturers account for this in the design of their PSUs, meaning that the use of generic PSUs can cause touchpads to malfunction and pointer movement to become erratic. This misbehaviour can be rectified by restoring proper grounding, either by touching a metallic part of the computer with the other hand, touching the (insulated) power supply with some part of the body, or using the computer on the lap instead of on a desk."

So it would be interested to hear from other suffers if they can find a way to ensure their laptops are earthed if this reduces the issue. Also to work on battery only.

FYI - My touchpad has been disabled all the time during the above tests.

I will enable the touchpad and see if the problem gets worse. Then report back.

Look at my comments below in pin-pointing the issue. It may not be a software issue but a hardware design issue due to build-up of electrical charge due to poor grounding. Probably the dell laptop (and I have seen complaints other manufactures laptops) seem to suggest there are issues with the design and/or the way the touchpads are implemented into the respective manufactures laptops.

FYI - a video below of how to use the cypress touchpad

www.cypress.com

Hi, I had my original message removed because I used a word they did not like. So no-one can read it now. I have worked will Dell computers over the past 20 years and I see where the problem is - costs are cut through outsourcing and offshoring to make Dell machines competitive. But there is a price to pay for this….

Dell Switzerland used to be excellent. Spoke English, German, French, Italian without a problem (our languages), but it is offshored to East Europe where they seem not be able to speak any language properly and also seem to be more sales cowboys. Its a great shame. Also I have 3 bad experiences with their laptops (all made now in China , before it was in Ireland, UK), and the issues were bent frame, screen coming away from casing, hinges creaking. Clearly a problem with the Quality Control. The problem now is more a design issue. I have so fed-up with this issue I think I know the problem and I think it is resolved (sort of ) for me. I think the problem is in the power supply, grounding area. I just changed to another dell power supply (I have lots from work), and the problem seems to go away. So I think for you - first disable the cypress touchpad and use an external mouse. Then work off the battery only. See if the problem goes away. Note: I find the problem with the power supply connected gets worse from 50 mins onwards - could be a build-up of static if the earthing is not properly earthed either in the laptop or the wiring in the house. Normally it would not matter, but I think there is an design issue or build issue. Note: the new power connector I am using is only 2 pin (international) so it is not using Earth. The problem does not happen anymore. It may be that earth leakage is causing a build-up using a 3 pin power connector. If you have no problem on the battery then enable the cypress touchpad driver (via control panel) and see if you get a problem (I have not tried this at the moment but will do it later). If you still are OK ie no problems then work of the power and see if there is an issue.

One other point - I upgraded to the latest version of BIOS - files on dell site today, but I somehow doubt if this has improved anything as I can still notice the changes between where the power supply is plugged in ie an extension cable or direct in the wall and also if I use a 3 pin power plug or a international 2 pin power plug...

Of course - what I describe could have absolutely nothing to do with the problem, but I gut feeling (based on years of experience) suggests there is.

Let me know what you find. We all need to know if there is a design issue because if we don't there will be alot of frustrated people and Dell will lose customers.

Hi kariberry97,

If you've any unresolved issue on your system please private message me your system service tag number.To private message click on my user name and click start conversation.

Thank You

Sucks doesn't it!! :(

I have a d630 [laptop] ....Worked great till I defragged and 'compressed' 2 days ago...now cursor jumps backwards...

happened 2x as i wrote.........here..3x

will BIOS update help

The touchpad on my new dell xps13 does the same thing, no matter how I set the sensitivity or reinstall the latest driver.  I've pretty much given up on resolving this frustrating problem as it makes my natural typing style unusable.  I spent a lot of money and in all areas, the laptop rocks except for this POS trackpad.

I have had the same problem with this damn thing of mine and this suggestion didn't work for me. I think dell  logged into mine one time and took care of this problem, but after a reinstall I have had it back for some time now.  Cursor all over the screen.. 

 win 7 ultimate

I know *how* to use the trackpad, the problem is when I'm using they keyboard the trackpad is much too sensitive to light inadvertent touches.  Palm rejection settings do not help unless I press the outside/bottom of my hands against the bottom of the laptop face - and press fairly hard.  It is not a natural position for me while typing.  It is a great laptop except for this glaring problem.  My only solution thus far is to use an external mouse and disable the trackpad.

Not sure about poor grounding.  Maybe I should try wearing an anti-static strap.  :)

I didn't seem to help me.