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- HP Community
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- Elitebook 840G5 and 840G6 touchpads suddenly stop working

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12-18-2020 07:05 PM
My company has been using the Elitebook Intel series since the 840G3 version with out issue. We have many G5 and G6 models issued, and within the last two weeks, we have had at least 15 users have their touchpads suddenly stop working.
We image with UEFI through MDT and use windows 10 Pro. We have had HP support not give us much help, as the touchpad passes tests during UEFI bios testing. Uninstalling Synaptics driver, replacing it with generic drivers worked on one system, but not the other 14. All systems were updated by the Image assistant. Windows updates current. Its really been frustrating for our users as productivity drops, especially at quarter end.
We have rolled back windows updates, but cannot figure out why some are doing this, while the remaining hundreds of systems, have no issues. ANY help is appreciated. I may add that the pointing stick and upper touchpads controls do work
12-19-2020 07:39 AM - edited 12-19-2020 07:51 AM
Hello @Vinny927
Have you tested your machines with UEFI hw diagnostics later version 7.9.0.0
If not, install it and then test >> https://ftp.hp.com/pub/softpaq/sp110501-111000/sp110971.exe
Read this generic article and consider the options >> https://support.hp.com/us-en/document/c03488148
Please, get one machine that is affected and reinstall Windows on it using HP Cloud Recovery >> https://support.hp.com/us-en/document/c05115630
This is HP's factory image with preinstalled drivers/apps and it should work. Compare and contrast what is different regarding drivers/apps/updates
HP Support team is well trained to help with such issues. While HP cannot fix customer's custom images, on a best effort one can compare and contrast your working and non-working devices' images to see what is different. You should also consider some Windows updates...
- If UEFI hardware diagnostics pass and if it works fine with HP Cloud Recovery, then it is a software issue coming from some 3rd party app or some new update/driver - consider this
Hope this helps. Let me know if you still face difficulties.
*** HP employee *** I express personal opinion only *** Joined the Community in 2013
12-19-2020 08:10 AM
thanks for the reply. The majority of my users are remote, especially with covid. A reinstall of the OS restores functionality. I am trying to find out a solution for my remote users, that does not require a reinstall of the OS, or a reason possibly that we can address. I am open for any suggestions, and thank you all in advance.
12-19-2020 08:14 AM - edited 12-19-2020 08:39 AM
You are most welcome !
So, it's definitely some software issue.
Do you have an active case opened with HP Support, usually starts with 5 ?
*** HP employee *** I express personal opinion only *** Joined the Community in 2013
12-19-2020 08:26 AM
I have had several, but once the touchpad passes during the UEFI diagnostic tests, HP declines further assistance and request a reimage, which with a corp image and controls, is hard. We had one case resolved, that a very tech savvy user, uninstalled Synaptics and set to use the generic driver and he is still good at three days now
12-19-2020 08:35 AM - edited 12-19-2020 08:41 AM
@Vinny927 wrote:I have had several, but once the touchpad passes during the UEFI diagnostic tests, HP declines further assistance and request a reimage, which with a corp image and controls, is hard. We had one case resolved, that a very tech savvy user, uninstalled Synaptics and set to use the generic driver and he is still good at three days now
Have you tried doing the same for some of the other users ?
May be you could connect to their machines remotely using some software and do it if they cannot ? Initially you mentioned that 15 are affected, 1 got fixed. I mean you tried doing it, it failed OR you could not do it yet ?
@Vinny927 wrote:Uninstalling Synaptics driver, replacing it with generic drivers worked on one system, but not the other 14
I am checking something in the background
*** HP employee *** I express personal opinion only *** Joined the Community in 2013
12-19-2020 08:44 AM
I am waiting on the others to reply to me, for a time for a remote session. Some have taken to a bluetooth mouse for solution, so its not as urgent as others. I also have one system that will be back in my possession, the first one that it happened with, so I will be able to simulate it and test better. Thank you again.
Vinny
12-19-2020 08:46 AM
I am checking something in the background. Will post back once ready.
In the mean time, please post back if you have any news/updates.
*** HP employee *** I express personal opinion only *** Joined the Community in 2013
12-19-2020 02:34 PM
Try the solution from this thread.
I had the same issue and it worked!