Trackpad randomly starts delaying scrolling until I let go of the trackpad

[Zonova]

The trackpad will be scrolling fine, but then randomly it will start behaving so that when I try to scroll with two fingers on the trackpad, it won't actually scroll on the screen until I take my fingers off of the trackpad. Normally as I two-finger scroll, the scrolling on the screen follows my fingers. But, when this behavior begins happening, the screen doesn't follow the scrolling motion I am making on the trackpad as I do it, and instead scrolls all at once as soon as I take my fingers off of the trackpad. The behavior doesn't go away until I restart my laptop. I have already checked to make sure my synaptic drivers are up to date. Also, once this behavior begins, it happens in all applications: webbrowser, pdf reader, everything. Why does this keep happening? It begins happening randomly during usage.

[Echo_Lake]

@Zonova
Thank you for posting on the HP Support Community.

I see that you experiencing an issue with the trackpad, I appreciate your efforts to try and resolve the issue.
Don't worry as I'll be glad to help, however, to provide an accurate resolution, I need a few more details:

• When was the last time it worked fine?
• Did this happen after a recent window or software update?
• Have you made any hardware/software changes​​​​​​​​​​​​​​

While you respond to that, let's try these steps: 

Let's try:

Hard Reset:

1) Shutdown the computer.  

2) Unplug all the Adapter and peripherals connected.  

3) Press and hold down the power button for 15 to 20 seconds.  

4) Plug-in the Adapter.  

5) Try to turn on the computer

Next: Restore BIOS default settings.

1. Turn off the computer and wait five seconds.
2. Press the Power button to start the computer and repeatedly press the F10 key to enter the BIOS setup menu.
3. On the BIOS Setup screen, press F9 to select and load the BIOS Setup Default settings.
4. Press F10 to Save and Exit.
5. Use the arrow keys to select Yes, then press Enter when asked Exit Saving Changes?
6. Follow the prompts to restart your computer. (If the error message displays proceed to the next step)

Hope this helps! Keep me posted for further assistance.

[Zonova]

It has happened since I bought the laptop, as far as I can tell, which was in late december. It works fine normally, and works fine after I restart the computer, however it randomly reverts to the behavior I mentioned in the first post. No I have not made any hardware or software changes.Neither of these fixed the issue, the scrolling problem continues to randomly pop up even after I've done these things.

[Echo_Lake]

@Zonova 

Thanks for responding,

Let’s try these steps to resolve the issue:

Perform Touchpad Test:

Use the following steps to open the Component Tests menu.

1. Hold the power button for at least five seconds to turn off the computer.
2. Turn on the computer and immediately press Esc repeatedly, about once every second. When the menu appears, press the F2 key.
3. On the main menu, click Component Tests.
4. The Component Tests menu displays.
5. Select Mouse/Touchpad Tests. Mouse/Touchpad Tests - This consists of two tests, the Pointer Test and the Drag and Drop Test.
6. To run the tests, click Mouse/Touchpad. Select the test you want to run, and then click Run once. Follow the instructions to complete the test.

Uninstall and reinstall Touchpad Driver:

1. Press Windows + X to open the menu and choose Device Manager on it.

2. In device manager, expand category “Mice and other pointing devices”.

3. Under this category, right click on your Synaptics Touchpad driver and click on Uninstall.

4. You may be required to confirm the uninstallation. Check the box next to “Delete the driver software for this device” and click OK button.

5. Restart your PC for the change to take effect. After restarting. Windows will attempt to reinstall the driver.

6. Do not perform any manual upgrades to the driver until it does automatically

If the issue persists, Update BIOS following steps from the link: https://support.hp.com/in-en/document/c00042629

Hope this helps! Keep me posted for further assistance.
If I have helped you resolve the issue, feel free to give me a virtual high-five by clicking the 'Thumbs Up' icon below, Followed by clicking on "Accept as solution" from the drop-down menu on the upper right corner,Thank you for posting in the HP Support Community.  Have a great day!