Aspire 7720G Synaptics Driver

Hi

I try to install the Synaptics driver from Acer support, but unfortunately
the GUI give only Options for buttons (2!).

I see there's a Compal tools who determine which PAds are inside the 7720G
For sure, it's a Synaptics... lol.

and for details : ACPI\SYN1B07

There's some modded driver to enable and give some extra option.
i try some modded driver, including from laptopVideo2go too, same result.

Somemone here know or perhaps can modify the .inf to give the 7720G Synaptics pads the more option it can achieve ?

Regards,Ray

 

I'm pretty sure all 7720G and 5720G machines come with ALPS touchpads. The Synaptics drivers will still install, but will have only button-related options.

 

If the hardware ID is as the OP stated, the touchpad is a Synaptics touchpad. Also, the support page lists both Alps and Synaptics touchpad drivers so the 7720G does have models with Synaptics touchpads. Try this Synaptics driver, maybe it will help things a little.

 

Thanks for the reply.

Like i said before the OS reply with this hardware ID :

ACPI\SYN1B07

And under other OS, i have the confirmation it's a Synaptics One.

And like you see in the synpd.inf provided into the 7720G synaptics driver
provided by Acer support :

[SynMfg.NTamd64]

%PS2.SynDeviceDesc% = Acer_1B00_PS2_Inst,*SYN1B00
%PS2.SynDeviceDesc% = Acer_GROUP1_PS2_Inst,*SYN1B01
%PS2.SynDeviceDesc% = Acer_GROUP1_PS2_Inst,*SYN1B02
%PS2.SynDeviceDesc% = Acer_GROUP2_PS2_Inst,*SYN1B03
%PS2.SynDeviceDesc% = Acer_GROUP2_PS2_Inst,*SYN1B04
%PS2.SynDeviceDesc% = Acer_GROUP2_PS2_Inst,*SYN1B05
%PS2.SynDeviceDesc% = Acer_GROUP2_PS2_Inst,*SYN1B06
%PS2.SynDeviceDesc% = Acer_GROUP1_PS2_Inst,*SYN1B07 <- Yes, here.
%PS2.SynDeviceDesc% = Acer_GROUP1_PS2_Inst,*SYN1B08
%PS2.SynDeviceDesc% = Acer_GROUP1_PS2_Inst,*SYN1B09
%PS2.SynDeviceDesc% = Acer_GROUP1_PS2_Inst,*SYN1B10

; Legacy support
%PS2.DeviceDesc% = Acer_GROUP1_PS2_Inst,*PNP0F13,*PNP0F0E,*PNP0F03,*PNP0F12 ; Std PS/2 mouse
%PS2.SynDeviceDesc% = Acer_GROUP1_PS2_Inst,*SYN0002 ; Synaptics PS2 TouchPad

This driver is the 9.1.16c version from Acer Europe "support" (lol)
As Usual.... on the acer.com the driver is more recent : 10.0.15c
have the hardware id too :

[SynMfg.NTamd64]

%PS2.SynDeviceDesc% = Acer_1B00_PS2_Inst,*SYN1B00
%PS2.SynDeviceDesc% = Acer_GROUP1_PS2_Inst,*SYN1B01
%PS2.SynDeviceDesc% = Acer_GROUP1_PS2_Inst,*SYN1B02
%PS2.SynDeviceDesc% = Acer_GROUP2_PS2_Inst,*SYN1B03
%PS2.SynDeviceDesc% = Acer_GROUP2_PS2_Inst,*SYN1B04
%PS2.SynDeviceDesc% = Acer_GROUP1_PS2_Inst,*SYN1B07 <- Again.
%PS2.SynDeviceDesc% = Acer_GROUP1_PS2_Inst,*SYN1B08
%PS2.SynDeviceDesc% = Acer_GROUP1_PS2_Inst,*SYN1B09
%PS2.SynDeviceDesc% = Acer_GROUP1_PS2_Inst,*SYN1B10
%PS2.SynDeviceDesc% = Acer_GROUP3_PS2_Inst,*SYN1B11
%PS2.SynDeviceDesc% = Acer_GROUP4_PS2_Inst,*SYN1B12
%PS2.SynDeviceDesc% = Acer_GROUP4_PS2_Inst,*SYN1B13
%PS2.SynDeviceDesc% = Acer_GROUP5_PS2_Inst,*SYN1B14


Before i wrote my first post, i try all the synaptics driver before
including the generic driver from synaptics website and of course
the latest one from station driver.

As you can see, no hardware id for SYN1B07 inside the synpd.inf.

As i know the 15.3.33 is more an "HP" one. i'm trying to include
the hardware id inside the synpd.inf, but no result.

the only generic version come from synaptics website.

The other one are modded for Each Brand of laptop.

As i know, the synpd.inf requires Deep modding to obtain a fully working
version (you can see on laptopvideo2go Too).

But i put my request here, because some expert here probably know
this problem.

 

Most likely you are seeing SYN1B07 as a result of your earlier attempts to install a Synaptics driver - it's a virtual device set up by the driver. No 7720G was ever manufactured with a Synaptics touchpad.

 

Then why would Acer make available Synaptics drivers for 7720G?

Either way, SYN1B07 is the device id of the touchpad and cannot be modified just by installing a driver. I'm positive that the touchpad is from Synaptics. As for the driver not installing, give me a day or so, I'll see if I can modify the driver to install on your device

 

It's a New Fresh install, and see on Acer support page :

Acer Support: Downloads & Support Documents - Notebook / Aspire / Aspire 7720G

And in the v9.x.x on acer european support there's a tools FROM CompaL
(CompaL TouchPad detect V2.3)
to detect which type "ALPS" or "Synaptics" you have.

there's a setting.ini and CompaL tools detect "Touchpad3 !"
if you edit the setting.ini, you'll see :

[Touchpad3]
PNPID=SYN1B07
PATH=\Synaptics\v9_1_16_C\setup.exe
parameter=-s

I know you're one of the best, if not the best expert of icl50 but, i'm just
reffering to the OS, who detect natively as "PS/2 mouse", and show me
in the peripheral SYN1B07 too.

And why other os give me Synaptics too ?

 

Likely a Synaptics touchpad removed from a different model was installed in your machine, to replace the original ALPS one, if Linux also considers it a Synaptics. But I believe Linux will tell you that you have an ALPS touchpad. (The 5920G used Synaptics.)

I'm sure that the string SYN1B07 comes from "stuck" components of the Synaptics driver.

 

Acer will not provide Synaptics drivers for 7720G if there were no models with Synaptics drivers. If the 7720G did not have the Synaptics touchpad and Acer uploaded Synaptics drivers, why wouldn't they upload ELAN and Sentelic drivers as well? Food for thought.

Anyway, try modifying hardware ids. Any of them. Somehow. You won't make it very far. Or, try installing a driver that is not for your touchpad. The device id string will remain the same. The driver cannot change the device id.

 

Acer never made ANY machine with Elan or Sentelic touchpads AFA<!-- -->IK. They did however use Synaptics for other machines.

Because this is an ACPI device name (supplied by the ACPI tables), not a PCI or USB ID, it can be affected by software. Remember, the device ID of a PCI card is not "PCI\VEN_CAFE&DEV_1234", it's "CAFE:1234" - the long form is Windows-specific cr*p, generated by the Windows HAL.

 

I was using Elan and Sentelic as an example, I don't know of any laptop they made with Elan or Sentelic touchpads either

As for the second bit, I know how device drivers work, having modded some before. What you said is correct, but it's almost like rewording the same thing: CAFE:1234 is from the device, and PCI\VEN_CAFE&DEV_1234 is read from the string from the device. As such, the id read by DoZe "SYN1B07" is from the device itself. It cannot be modified from the id on the device because it is hardcoded, and drivers often check for this string to ensure they are installing the correct driver for a device. This is why, for example, an AMD Radeon driver will not install on a system with a Nvidia Geforce GPU because the strings from the device don't match with the strings in the .inf and .msi files. Even if you were to force the install, the device id, and as such the reading from the hardware will remain the exact same. The driver has no control over the device ID itself, so I still say that DoZe's 7720G has a Synaptics touchpad.

 

I have Elantech touchpad in my 5750 and it's horrible, I don't like it at all.

 

@too456: The words "PCI", "VEN" and "DEV" are stored nowhere in any hardware device - they come from the Windows HAL. The PCI device just returns 2 numbers - 0xCAFE and 0x1234. Windows then translates these to "Windows device IDs", which are what the drivers bind to. However, after binding to a device with one Windows device ID (e.g. PCI\VEN_CAFE&DEV_1234), the driver can present to Windows another, essentially arbitrary device ID (e.g. ACPI\SYN1B07), which another driver can bind to. Only the IDs beginning with PCI\ and USB\ drivers are immutable.

(The Radeon driver is somewhat different - it checks not just the Windows device ID returned by HAL, but also the actual numeric values returned by the device in its PCI configuration space.)

 

I don't get you, because even if a driver is not present, the string 'ACPI\SYNxxxx' still appears on a fresh install on my 3820TG when I was reinstalling Windows. AFAIK the device ID is read by the ACPI table which is read when Windows is booting, and it is read directly from hardware, not the driver itself.

 

That would be very weird - IIRC there is no device beginning with "SYN" anywhere in the 7720G's DSDT table.

 

I wouldn't know, I don't have a 7720G on hand to test

Either way, let us assume that I'm wrong and the driver has been installed incorrectly.

DoZe: Uninstall whatever driver you have installed, reboot and post the device id of the touchpad. That should clear things up for us.

 

Ok i'm trying and make a report as soon as possible.

Regards to the Two Notebook Evangelist and thanks again for your time

 

Hi !

Remove the driver, install the ALPS : same result as above.

 

So the device ID is still SYN1B07?

If so, you really do have a Synaptics touchpad. Try this driver from Synaptics, see if it installs.

 

I have two Acer 7720G. I use one as the master and another as a backup in case of error. I have XP Pro. When one fails I swap the entire O/S over to the other. One of the laptops has the Alps touchpad and driver, the other has the Synaptics touchpad and driver. When I swap the hard drives between systems I have to uninstall and reinstall the correct touchpad drivers to get the touchpad to work. If I have the wrong driver installed then I have only partial function of the touchpad.

FYI, I checked the hardware device ID and it states ACPI\SYN1B07 which strongly implies that this 7720G has a synaptics touchpad as I believe it has... when I have time I'll post the results of looking at the other laptop.

 

I remember having an issue with the touch pad drivers on mine too. I dl'ed the 7730 driver and worked fine. You could try that.

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