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Hi,

I've got a Dell Inspiron P30E001 Touchscreen laptop. Having an issue where after a short while the laptop will register as though a finger is touching the top of the screen. This doesn't go away and you are then unable to use the trackpad at all as there is no mouse.

The machine has already been completely reloaded but that has had no positive effect.

Interestingly, when disabling the touchscreen through device manager, the issue stops. The issue only returns after re-enabling the touchscreen driver.

Typically, the machine is 2 months out of warranty.

Any thoughts?


Chipotle
OP
Geekuilibrium Dec 28, 2017 at 15:10 UTC

Also, clean the screen as well as you can.  There might be something stuck on it that you can't see (that would explain it getting better when you swiped across it).

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16 Replies

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Datil
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Z-Rogue
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Dec 28, 2017 at 12:59 UTC

Have you checked to see if there is an updated driver available for the laptop model? If you use the touchscreen somewhere else on the screen does it "free up" the mouse? Do you allow the laptop to "sleep" when lid is closed? - Ive seen this cause some really weird and dumb issues.

I hear you on the warranty issue... But it could be physically an issue and not necessarily software based. How long does it take from a fresh restart to thinking the screen is being touched?

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Chipotle
OP
Geekuilibrium Dec 28, 2017 at 13:33 UTC

Is it building up a static charge somehow?  Try rubbing it down with a dryer sheet.  I know it's far fetched, but maybe?

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Anaheim
OP
Ryan_H Dec 28, 2017 at 14:11 UTC

Hi thanks for the reply.

I've just wiped it down now and re-enabled the touch screen. It normally takes a few minutes for the issue to take effect so I'll have to wait and see.

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Habanero
OP
2300peterw Dec 28, 2017 at 14:12 UTC

How annoying! You could try Dell with a warranty request since it is unlikely that the defect was not there a bit earlier within the warranty period. You never know your luck, they may offer some kind of deal.

In all likelihood it is a hardware fault and if you are very lucky a removal of the screen and some wiping will improve the situation. Don't get your hopes to high. 

Best of luck

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Anaheim
OP
Ryan_H Dec 28, 2017 at 14:22 UTC

Thanks for the reply,

I've had a look on Dells site for anything relating to the touchscreen driver but I'm not having any joy.

http://www.dell.com/support/home/uk/en/ukdhs1/product-support/product/inspiron-17-7778-2-in-1-laptop...

If you touch the screen somewhere else it still detects that you are touching else where and will respond to presses. However, the initial press at the top part is still there.

I believe the laptop is often put to sleep rather than being fully shutdown. It's usually about 5 minutes or so before the screen thinks it's being pressed.

strangely enough after swiping a finger along where it was being pressed. It is no longer seeing it as being pressed down. I'm not sure how ong that will be the case for though.

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Chipotle
OP
Geekuilibrium Dec 28, 2017 at 15:08 UTC

Does it make a difference if it's plugged in or not?

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Chipotle
OP
Best Answer
Geekuilibrium Dec 28, 2017 at 15:10 UTC

Also, clean the screen as well as you can.  There might be something stuck on it that you can't see (that would explain it getting better when you swiped across it).

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Jalapeno
OP
Ross3700 Dec 28, 2017 at 16:12 UTC

Have you tried calibrating the screen? 

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Chipotle
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Robert40492
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Dec 28, 2017 at 17:33 UTC

Have you tried cleaning the screen? 

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Pure Capsaicin
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dbeato
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Dec 28, 2017 at 18:11 UTC

Have you updated the Touch Screen Drivers and BIOS firmware?

http://www.dell.com/support/home/us/en/19/product-support/product/inspiron-17-7779-2-in-1-laptop/dri...

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Mace
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Snufykat
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Dec 28, 2017 at 21:22 UTC

Sounds like a hardware failure, if you have done updates and drivers and re installed the OS with no change there is not much else to it.  You may need to leave the touch screen disabled or replace it at your cost, if dell will not replace it out of warranty.

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Serrano
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NPhardness
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Dec 29, 2017 at 05:54 UTC

When i worked on behalf of dell i did get a few callouts for this exact issue. Usually Dell would just send me a replacement screen which fixed the issue. and sometimes it was just the drivers or the cable that connects the screen. Sometimes where the pins connects it becomes loose and doesn't register properly.

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Jalapeno
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greg28818
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Dec 29, 2017 at 14:04 UTC

Try looking this up on Dell's forums, " Ghost clicks on touchscreen " as there seems to be many people that having similar problems.  I did a little looking for someone telling me that had similar problem but I never got to work on it for them as they got a new computer.

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Anaheim
OP
Ryan_H Jan 2, 2018 at 09:30 UTC

Hi guys thanks for all of the replies.

After cleaning the screen we've had the machine on test now for a few days and it seems to be fine.

No longer registering any touches (That aren't intentional).

Thanks for all the help.

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Habanero
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2300peterw Jan 2, 2018 at 10:31 UTC

Good news. Did you take the screen out to clean it? Or was it something stuck to the top touch surface so that a wipe with a cleaner cured the problem.

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Anaheim
OP
Ryan_H Jan 3, 2018 at 09:37 UTC

Thankfully we didn't need to take the scren out.

Just used a bit of anti static foam on a cloth and that seemed to do the trick. So must've been something just stuck to the screen that we couldn't see.

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