Mouse drift on Dell Latitude c840 running Feisty 7.04

[Adam M]

Hi Erik,

Thanks for the suggestion. I tried it out on my laptop, but
unfortunately it had no noticeable effect. I already ordered a new
keyboard from Dell, so I'm crossing my fingers that it will fix the
problem.


Thanks again,
Adam


On Tue, 15 May 2007 10:26:20 +1000, "Erik Christiansen"
<erik at dd.nec.com.au> said:
> On Mon, May 14, 2007 at 12:22:03PM -0400, Adam wrote:
> > The issue is that the mouse cursor has a mind of its own, wandering to
> > (and getting stuck in) either the upper-right or lower-left corner of
> > the screen. I've seen others post similar reports, but so far I haven't
> > seen any resolution that works on my laptop.
> ...
> > Here's the InputDevice section of my xorg.conf for the touchpad:
> > Section "InputDevice"
> > 	Identifier	"Synaptics Touchpad"
> > 	Driver		"synaptics"
> > 	Option		"SendCoreEvents"	"true"
> > 	Option		"Device"		"/dev/psaux"
> > 	Option		"Protocol"		"auto-dev"
> > 	Option		"HorizScrollDelta"	"0"
> > EndSection
> > 
> > 
> > I'm hoping to get lucky and find someone who knows a magic fix for this
> > problem. It's driving me crazy!
> 
> Adam,
> 
>   My Synaptics Touchpad was also unusably wild until I adjusted
> acceleration and speed parameters, following helpful hints on this list.
> I just fiddled the factors until the cursor behaviour suited:
> 
> Section "InputDevice"
>    Identifier  "Synaptics Touchpad"
>    Driver      "synaptics"
>    Option      "SendCoreEvents"  "true"
>    Option      "Device"    "/dev/psaux"
>    Option      "Protocol"     "auto-dev"
>    Option      "HorizScrollDelta"   "0"
> #  Added 2006.04.12, to fix wild cursor text selection overshoot on
> #  NEC Versa  P8100:
> #  Option      "MinSpeed"      "0.2"
> #  Option      "MaxSpeed"      "1.0"
> #  Option      "AccelFactor"   "0.0"
>     Option     "MinSpeed"      "0.1"
>     Option     "MaxSpeed"      "0.75"
>     Option     "AccelFactor"   "0.0"
> #  Added 2006.06.06, to allow touchpad to be turned off:
>    Option      "SHMConfig" "on"
> EndSection
> 
> I'd never go back to hunting around the desk for a mouse, after the
> convenience of a touchpad, especially after adding the last line above,
> and running:
> 
> syndaemon -i 1 -d
> 
> so the touchpad ignores any thumbs straying onto the pad during typing.
> 
> Oh, one caveat; the above is being used on Breezy, but the innards of
> xorg configuration have presumably not become inconsistent since then.
> 
> Erik
> 
> 
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