Info Touchpad cursor drift / overshoot

Mar 20, 2019
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In case this helps anyone, I have an Acer Aspire 5 laptop, 4 months old with a Synaptics touchpad.
A few days ago, the cursor started to overshoot by a few mm (enough to miss the target) when I moved it to the left or upwards.
'Overshoot', meaning the cursor continued to move after my finger stopped.

It seemed like a hardware problem, because the drift was only in some directions. I couldn't find an answer online but deleting the driver (a Microsoft driver dated 21/6/2006) then rebooting did the trick.
The driver reinstalled itself, and the touchpad worked perfectly.

To delete the driver:
Windows key / type 'device m' / select 'device manger' / select Human Interface Devices / right click HID-compliant touch pad / uninstall device

The touchpad will now not work.
Reboot, and the driver (the same one) should reinstall.
 
Mar 20, 2019
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Thanks Phillip, I've done this for other computers, but actually I can't download the latest Synaptics driver from the OEM's website because, Acer don't currently supply Synaptics drivers. The Acer community is moaning about it. Synaptics themselves say only to use the OEM-supplied customised driver.

The 2006 installed driver works fine, with all gestures available, and I don't want to fix the unbroken. Perhaps this ancient driver is the one Acer wants users to use. Beats me how a 2006 driver has all these advanced 2-3-4 finger gestures, but there it is.

https://www.synaptics.com/resources#drivers
https://community.acer.com/en/discussion/532178/aspire-a515-51g-synaptics-driver
 
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Mar 20, 2019
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OK scratch that - the problem is back, deleting the driver no longer helps. Suggestions welcome. Haven't managed to find a suitable synaptics driver yet.
ETA: it works fine in 'desktop mode' - with an external USB mouse plugged in, plus keyboard and monitor.
Is this maybe a conflict between the various input device drivers?
 
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