09-14-2015 02:17 PM - edited 09-17-2015 01:16 AM
I do not usually use forums and other kinds of helps, but guys, this is hilarious.
Or... it would be hilarious if happened to another person, yeah.
basic data --
Probook 455 G2
Windows 8.1 64-bit
So, my Synaptics touchpad started behaving in an odd way yesterday.
That is: it works fine at startup, but the tapping surface stops reacting after a few seconds - sometimes after a few minutes. What remains is even more strange: the two buttons remain operational, and the bottom approx. 10% of the surface reacts to right and left movements, while the upper 90% zooms in and out whatever is on the screen... WHOA? And sometimes it goes back working for no obvious reasons. Before stopping again.
Next: If I close the lid and open after a few sec, the wake-up process starts and the touchpad works fine until... go to 10.
And it is not over: the tapping surface works fine IF I KEEP ONE OR BOTH BUTTONS PRESSED. ?? 🙂 naturally this is not a "solution" as all side effects of a pressed mouse button occur. But the pointer moves, yeah. Umm. [UPDATE: this later phenomenon was a seemingly software-related sticky Ctrl issue that stopped occurring]
What I did this far:
1. Driver check: driver uninstall -> reboot -> reinstall (no newer version offered, so the same) -> reboot -> no effect, same symptoms;
2. Windows System Restore to a mere 5 days earlier stage: everything worked fine! but then McAfee vulnerability scanner reinstalled all the Windows Updates and now the situation is even worse than before.
I do not say some of the latest KBs cause this anomaly for sure, but well, is there a chance?
Any help welcome!
Thanks & cheers,
09-17-2015 01:11 AM
So bad noone is able to answer this question. 😞
- touchpad always starts ok when ProBook is switched on, but halts after an indeterminable (that is always changing) time;
- I am unable to determine the trigger - I do not know what (later starting background process and/or clash of processes??) causes this behaviour;
- when operable it is like trying to drive a waterbed in the Monaco Grand Prix - lags and slides;
- when stops the bottom 10% of the touchpad reflects to left/right impulses and the buttons work well;
- quite often is starts again if I move a plug-in mouse and switch back to touchpad after a minute or so - but NOT always;
- had a "sticky Ctrl" issue earlier (had loads of fun...)- this is NOT the same;
- if the touchpad is stuck with no signs of life I switch off Synaptics processes from Task Manager - I gain a very strange touchpad without the extras of Synaptics and Shaking Like Hell. WOA? but it works for people with lots of patience.
I think this is a challenging issue, so dear Hardcore Hardware Magicians - HELP ME!
05-10-2016 08:15 AM - edited 05-10-2016 08:19 AM
I work for a company that has had similar issues on 5 of our machines (all 455 G2s).
We've contacted HP support and they have come out and replaced the touchpads every time but doesn't resolve the issue
I'd suggest checking out these articles
They're for previous models but seem to be the same issue and have a resolution posted. We will be trying it out
07-31-2016 08:26 AM - edited 07-31-2016 08:26 AM
Hi Hanbal and HP by mistake,
My touchpad still works, but after upgrade to Win 10 the fingerprint scanner no longer functions (it is "installed" and Win says all OK, but Win cannot see or use it to log in, etc...
Any suggestions, please?