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Windows 7: Acer Synaptics Touchpad - Finding Internal PS/2 port in Device Manager

15 Feb 2013   #1

Windows 7 Home Premium 64bit
 
 
Acer Synaptics Touchpad - Finding Internal PS/2 port in Device Manager

I just had to replace the top cover, including touchpad, on an Acer 5741 running Windows 7 64 Home Premium, because the old cover had cracked near the hinge. The new cover appears identical to the old one, and everything works, but the symantics touchpad software doesn't recognize the touchpad as a touchpad; it shows as a "wheel mouse on PS/2 port". Therefore, I can't turn off the incredibly annoying "tap to click" function. The option to disable tap to click is grayed out... it appears that's because the touch pad is seen as a "mouse" not a touch pad, as it was before.

When no drivers are installed, Device Manager just sees it as a PS2 Mouse. When drivers are installed, Device Manager sees it as Synaptics PS/2 Port Touchpad.

The OS is entirely up to date. I have tried the latest Synaptics drivers, I have tried using the original driver version that came with the laptop, and I have tried a couple of versions in between. I have repeatedly uninstalled the "touchpad" or "mouse" in device manager, and have also uninstalled and reinstalled drivers.

Yesterday I tried removing the laptop's keyboard to expose the ribbon cable that connects the touchpad to the board underneath. I thought that if I disconnected and reconnected the cable, that device manager might see the touchpad AS a touchpad, rather than as a mouse. No luck. I tried this with the computer powered up in Windows, and Windows never identified that I had disconnected the touchpad, although of course it didn't function with the ribbon cable disconnected. It worked again when I reconnected it, but again, no "reaction" from Windows to either action.

I"m now wondering if I can "uninstall" the PS/2 port (which I guess is the connector, not a traditional PS/2 port like on the back of a PC) in device manager, restart, and hope the computer then reinstalls the PS/2 port and recognizes it as having a touchpad connected?

My question after the long post above, is which listing under "device manager" actually represents the PS/2 port? Is the port itself (not the mouse or pointing device) under "System Devices" somewhere? Or is it under "Universal Serial Bus Controllers" somewhere? Does anyone have any suggestions as to how I identify this port in the device manager?

Thanks!

My System SpecsSystem Spec
.

15 Feb 2013   #2

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

The working Gateway (Acer) laptop we have here shows the touchpad in Device Manager under "Mice & Other Pointing Devices" and it is listed as a "Synaptics PS/2 Port Touchpad". Location: "Plugged into PS/2 Mouse Port"

So I think you are chasing your tail with the PS/2 port. I recall there being another reason why the annoying "Tap to Click" feature is greyed out. I will employ Google to see if I can find that.

EDIT: this may be a cause here:

Acer Synaptics Touchpad - Finding Internal PS/2 port in Device Manager-capture.png

Your model may have a Elantech or ALPS touchpad. Are you positive it is a Synaptics?


My System SpecsSystem Spec
15 Feb 2013   #3

Windows 7 Home Premium 64bit
 
 

Thanks TV... I had to replace the top cover, that includes the touchpad. I tried the other drivers just to be sure, they didn't work. I also checked the hardware ID under Device Manager without the drivers installed and it still indicated synaptics as the manufacturer (the website magicdriver.com can suggest drivers based on that hardware ID).

I have installed and uninstalled the touchpad under "mouse" and tried every version of drivers, synaptics and others, without success so far.
My System SpecsSystem Spec
.


15 Feb 2013   #4

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

Is there a touchpad icon in your taskbar tray?

If you right click on that, is 'Tap-To-Click' an option?
My System SpecsSystem Spec
16 Feb 2013   #5

Windows 7 Home Premium 64bit
 
 

I determined that the touchpad in the replacement top cover was from Elantech. Even when deleting the Synaptics drivers under "uninstall programs" and deleting the driver in device manager along with the "PS/2 mouse" the device ID code implies that the hardware manufacturer is Synaptics. I downloaded the "Acer" versions of all three manufacturers' drivers from the Acer support page, then extracted them all to separate directories. I then installed and uninstalled them all.

The key was to use "Update Driver" from within Device Manager to get them to properly install. Don't unzip and try to use any of the files in the directory to install the drivers. That was hours of my life I'll never get back!
My System SpecsSystem Spec
16 Feb 2013   #6

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

Nice work though. Glad you got it figured out. Congrats.
My System SpecsSystem Spec
20 Sep 2013   #7

Windows 7 Home Premium 64bit
 
 

Longs2517,

I had exactly the same problem. Like you I uninstalled and installed Drivers from different locations. My computer was repaired under warranty and when it was returned I had the problem. I called eMachines (Acer) and they suggested restoring my computer to factory settings. Not a chance.
I was convinced the wrong hardware had been installed (it was Synaptics) but had't got as far as you.
Any way uninstalled the software and driver, downloaded the Elantech driver. I did unzip it and installed it and......... it all worked normally again so I could now disable the annoying tapping.
Thank you and well done. I will be in touch with eMachines shortly!

Regards.
My System SpecsSystem Spec
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 Acer Synaptics Touchpad - Finding Internal PS/2 port in Device Manager





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