Weird bounce back when scrolling on touchpad

[jotiger]

I just got this omen laptop last week. Overall it is a great product especially the performance. Just one thing very annoying is when I use two fingers to scroll on touchpad, occasionally it bounces back quickly when my fingers stop. It is very hard to describe what is really happening, but it is really deal break, when I already scroll down quite a length on a web page, out of the blue, it jumps back to the begin of the page. I did some search it seems a common and mysterious problem across different brands of windows laptop and no solid solution reported. I have installed latest synaptics touch pad driver released just this Nov and disabled those features like double-finger tap tath could influence scrolling. None of them fixed the problem.

In hp support forum, some one mentioned disassemble the chasis and loosen the screws on touchpad may help on some previous HP models. I'm not sure if I should do it to my new machine.

Anyone has the similiar issue or a solution? 

Thanks.

[A4Apollo]

Hey there! @jotiger, Thanks for stopping by the HP Support Forums! 

I understand the touchpad cursor is randomly jumping while scrolling on the laptop.

Don't worry I'll try to help you out.

Did you make any software or hardware changes on your PC?

Have you tried checking with an external mouse?

Excellent description and a great diagnosis done. It is greatly appreciated.

Try the steps recommended below.

Control Panel -> Hardware & Sound -> Power Options -> Change Plan Settings (of current selected plan) -> Change Advanced Power Settings -> USB Selective Suspend Setting -> Disable (both)

Control Panel -> Hardware & Sound -> Power Options -> Change Plan Settings (of current selected plan) -> Change Advanced Power Settings -> PCI-Express -> Link State Power Management -> Disable (both)

Also, Try updating the BIOS, touchpad and chipset driver on your PC and check if it helps.

Update the BIOS using this link. Click Here

Update the touchpad drivers using this link. Click Here

You can try updating other drivers on your PC using the HP support assistant.

Refer this article to know more information about using the HP support assistant. Click Here

If the issue still persists after trying out the steps try the steps recommended below.

In Windows, search for Command Prompt. In the search results, right-click Command Prompt and select Run as administrator. Then click Yes.
In Command Prompt, type sfc /scannow. Make sure to include the space between sfc and the /.
Press Enter and wait while System File Checker scans for corrupted files.
When scanning is complete, the results are displayed on the screen.
If the file checker found and replaced any corrupted files, restart the computer and check the performance.
If the file checker did not find any corrupted files or found corrupted files but could not replace them, go to the next step.
If System File Checker finds corrupted files but cannot replace them, use the Deployment Image Servicing and Management (DISM) tool. DISM checks the corrupted files; then downloads and replaces the files using Windows Update.
In Windows, open a web browser.
   NOTE:
You need to be connected to the Internet to use DISM.
In Windows, search for Command Prompt. In the search results, right-click Command Prompt and select Run as administrator. Then click Yes.
In Command Prompt, type dism.exe /Online /Cleanup-image /Restorehealth. Make sure to include the space before each / in the command line.
Press Enter and wait while DISM works. This might take several minutes.
If DISM finds corrupted files, it replaces them using Windows Update. If this occurs, after DISM is finished, restart your computer and see if the performance has improved.

Refer this article to further troubleshoot lock up or freezing issues with PC. Click Here

Refer this article to know more information about using the touchpad. Click Here

Also, try running a system diagnostics test on your PC and check if the hardware components on your PC are functioning correctly.

Refer this article to know more information about running system diagnostics on your PC. Click Here

Let me know if this helps! 
Have a pleasant day ahead! 🙂

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[MorganKo]

I had something very similar happen. When I would scroll using the wheel on any mouse, the active window would "bounce" up and down. I tried everything recommended. I then remembered having unchecked the block third party cookies in Chrome. Even though this was happening in Outlook windows and any window of any application, checking to block third party cookies has remedied the situation.

Now to figure out why the wheel stops working altogether when scrolling, in any window? If I click down on the wheel for self scrolling and then out again it will then scroll. Both are new mice.