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thinkpac
Fanfold Paper
Posts: 10
Registered: ‎07-17-2009
Location: USA
Views: 1,133
Message 1 of 7

T60: mouse is jerky, but touchpad is smooth?

I recently got a basic Logitech USB mouse (model UAE-96). I plugged it into my T60, and the mouse pointer was kind of jerky when I moved it around. But the mouse pointer moved very smoothly when I used the touchpad.

I thought the mouse might be defective, so I plugged it into my HP laptop, and the mouse pointer moved very smoothly, so it wasn't defective. Both laptops are running Windows XP Pro SP3, and are using the exact same driver version.

Then I tried downloading the latest software from Logitech, but that didn't help with my T60, the mouse pointer was still jerky.

So I thought I might try a different brand mouse. I got a Microsoft mouse, and it is also kind of jerky when I move it around on my T60.

Any idea why the mouse pointer would be jerky when I use a real mouse, but it is smooth when I use the touchpad?
sktn77a
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Posts: 416
Registered: ‎04-04-2008
Location: US
Views: 1,124
Message 2 of 7

Re: T60: mouse is jerky, but touchpad is smooth?

Do other USB accessories work OK?  Have you checked your USB speed?
Keith
Currently T420 4177-CTO, T430 2347-A54, T430 2349-L64, T430 2347-UN9, T430 2342-CTR, Ideapad K1, H520S 2561-1LU, X1 1921-26U
Formerly 600E 2645, T30 2366, X31 2673, T40 2373, T41 2379, T42 2373, T42 2379, T60 1952, T61p 8889, T61p 8891




lead_org Microsoft MVP Contributor
Microsoft MVP Contributor
Posts: 21,009
Registered: ‎12-19-2008
Location: Australia, Melbourne
Views: 1,110
Message 3 of 7

Re: T60: mouse is jerky, but touchpad is smooth?

update your ultranav driver from Lenovo.com... 
Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
thinkpac
Fanfold Paper
Posts: 10
Registered: ‎07-17-2009
Location: USA
Views: 1,092
Message 4 of 7

Re: T60: mouse is jerky, but touchpad is smooth?

A USB drive seemed to work fine.

 

I just tried to download the latest ultranav driver, but the link is broken.

 

I have noticed something though. If I have the AC adapter plugged in, then the mouse seems a little jerky. But if I then disconnect the AC adapter, and run off the battery, the mouse will be really smooth. It will remain smooth even after I plug the AC adapter back in. The mouse will go back to jerky if I restart Windows.

thinkpac
Fanfold Paper
Posts: 10
Registered: ‎07-17-2009
Location: USA
Views: 1,078
Message 5 of 7

Re: T60: mouse is jerky, but touchpad is smooth?

The problem appears to be the ethernet network adapter. I noticed that when I unplug the AC adapter, that little ethernet icon in the system tray disappears (because it's configured to be turned off when running on the battery). So I disabled the Intel PRO/1000 PL network device, and now the mouse is always smooth!

How bizarre is that? Would like to find a fix for this, in case I need to use the ethernet port. I tried downloading the latest Intel PRO/1000 PL driver, but that didn't help. Could it be a resource conflict? But Windows won't let me change the Memory Range, I/O Range, or IRQ in the Device Manager (and I am logged in as Administrator).
lead_org Microsoft MVP Contributor
Microsoft MVP Contributor
Posts: 21,009
Registered: ‎12-19-2008
Location: Australia, Melbourne
Views: 1,073
Message 6 of 7

Re: T60: mouse is jerky, but touchpad is smooth?

have you updated to the latest bios? i also have 2 T60 with XP Pro, and none of them have this problem. 
Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
thinkpac
Fanfold Paper
Posts: 10
Registered: ‎07-17-2009
Location: USA
Views: 1,065
Message 7 of 7

Re: T60: mouse is jerky, but touchpad is smooth?

Yes I have upgraded to the latest BIOS.

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