Touch screen disables below a certain angle

[shingtaklam1324]

Summary of Issues

The touch screen works when the screen is more than 90 degrees above the keyboard, but when the screen is lower, the touch screen disables.

Troubleshooting/Diagnosing Error

From 120 degrees, if I lower the screen to 60 degrees, then return it to 120 degrees, the touch screen functions once the angle is greater than 90. There is no error in the Device Manager at any point in the process. This occurs in both Windows as well as the System Diagnostics (Esc then F2)

However, if I close the laptop, then the touch screen is disabled when I open it again. There is an error in the Device Manager for "ELAN EzTouchFilter", which is

This device cannot start. (Code 10)

A request for the HID descriptor failed.

Disabling then enabling "ELAN EzTouchFilter" enables the touch screen again.

Troubleshooting Steps Taken

Relevent drivers have been updated through Device Manager/the HP Website.

ELAN EzTouchFilter - 1.0.0.6 (29/01/2018)

Intel(R) Serial IO I2C Host Controller - 30.100.1902.39DE8 (11/01/2019)

Since this error occured when updating to 1803, I couldn't roll back the feature update at the time, but I have tried resetting Windows on 1803. Subsequent updates to 1809 and 1903 didn't fix the issue.

Conclusion from my POV

Since none of these issues were present before the 1803 update, and only manifested at that time, I would think that it was a software issue. However various combinations of driver updates/rolling back and Windows Updates not fixing the issue would suggest there is a hardware issue at hand.

[Raj1788]

@shingtaklam1324

Thank you for joining the HP Community

Let's try Resetting Your Computer.

Windows 10 has a reset feature that repairs your computer by reinstalling the operating system.

Click on this document: https://support.hp.com/in-en/document/c04742289 for Resetting Your Computer.

Refer to this document: https://support.hp.com/in-en/document/c03488148 Troubleshooting Touch Screen Issues.

Keep me posted, how it goes!

If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution and Kudos buttons, that'll help us and others see that we've got the answers!

Have a great day!

Cheers:)

[shingtaklam1324]

Hi,

I've performed a reset like you mentioned. It did not fix the issue.

Thanks

[shingtaklam1324]

@Raj1788

[Raj1788]

@shingtaklam1324

This seems to a loose connection, 

I would personally suggest you contact our HP Support. 

Click here: https://support.hp.com/us-en/contact-hp?openCLC=true

Make sure you select the Country and Region.

Keep me posted on further assistance. Hope that helps! 

Have a great day ahead!