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October 7th, 2017 22:00

e6330 - Touchpad Only Works on Outer Edges

Hello! 

I hope you all can help, I feel like this might be something that's been run into before but my endless Googling has not uncovered it.  I have a touchpad on an e6330 that's giving me a fit.  I bought it missing some parts, installed a hard drive, battery and some memory, Windows 10 Pro.

Here's everything I know and everything I've done....

  • It works on the outer edges of the touchpad in bios and Windows, but not in the center of the touchpad. 
  • It will light up the keyboard if you touch the center, but will not move the cursor.
  • The cursor will move in Windows for a very split second from the center only the very first time you touch it after a reboot.
  • The blue dot in the touchpad icon flickers of you touch the center.  Steady if you touch it on the outer edges.
  • I have an identical computer, the drivers are the same in the working one as the non-working one.
  • Gotta be the touchpad, right?  I installed a brand new one, no change.  It came with a new ribbon to the mainboard...ruling out the ribbon too.
  • Device Manager & Dell SuppotAssist say its working.
  • Bios is most current (A19)
  • Joystick and buttons work fine, mouse works if you plug one in.
  • I've deleted the driver and even the touchpad itself and reloaded, no change.  
  • Installed/updated drivers from Dell and Windows, no change.
  • Here's the kicker for me.  It works in Linux.  I have Linux Mint on a bootable USB drive, tried it for S&G and it works perfectly.  

Thank you in advance!  I appreciate any help.

Cheers!

Community Manager

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October 9th, 2017 09:00

The fact that the Touchpad works in Linux proves that the hardware is sound. The culprit has to be either the Windows 10 driver or something in the operating system itself. Moving your thread to the Windows 10 board. Let's see if the users can chime in with their opinions.

October 9th, 2017 11:00

Thanks for the reply!

I did also want to reiterate that the touchpad does not work in bios either, however the joystick and buttons always work correctly.

Thanks again, in advance!

Cheers!

Community Manager

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October 10th, 2017 11:00

That is different. The touchpad should work in the BIOS. Odd that it works in Linux. Since you already replaced the touchpad and cable, the only thing left is the motherboard. To me, not worth the cost for a 2012 computer.

October 26th, 2017 19:00

Well, it's not the motherboard.  I just installed a good used, ran when pulled motherboard and symptoms are identical.  During assembly I reinstalled the original touchpad assembly in order to keep the new one in case I get a computer that actually needs it.  

This makes no sense at all.  I think I've effectively ruled out hardware, right?  I've replaced the touch pad, the mainboard, and the ribbon between it.  There isn't anything else, right?

I started to think that maybe it was the hard drive connector since I was using Linux on a USB and it worked, but the hard drive connector is on the mainboard....soooo, nope.

Bios lives on the motherboard, right?  I've tried different versions on the old motherboard and no change.  The motherboard I just installed had A17, so that tells me bios has changed with the replacement mainboard...so it's not bios.  

But, how can a Windows driver effect function in Bios?  It can't, right?

I was using an aftermarket battery, so I had a worn but functional Dell battery, no change.

I removed the hard drive and booted to bios, still does it.  

There isn't much left to this computer to replace other than the screen.  

Any thoughts?

Thanks!

Mike

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