Re: synaptics touchpad driver sensitivity

Marcelo Magno T. Sales wrote:
Em Ter 05 Fev 2008, David Kramer escreveu:
I have a Dell Latitude D820 running F8, but I have the same problem
with pretty much every touchpad. The problem is not how much the
cursor moves as I move my fingers on the pad. There's plenty of
documentation on that.

My problem is that as I type, I sometimes find the cursor flying to a
completely different region, so if I'm typing an email, all of a
sudden my typing is going three rows above where I was typing, like
the pressure of my hands on the laptop case is enough to trigger the
touchpad. I would like to change the amount of pressure to be
considered mouse down.

Looking at the documentation for synaptics, it looks like there's a
setting called FingerLow and another called FingerHigh which I think
will adjust the pressure needed. I didn't want to try it without
asking first, lets I render X windows unusable.

In KDE, there is ksynaptics, which is capable of configuring various aspects of the synaptics driver. One thing it's possible to do with it is automatically disabling the touchpad while you're typing, enabling it again when you stop typing. This will probably solve your problem. Don't know the gnome equivalent for this application.

Thanks. I loaded ksynaptics (and enabled "SHMConfig" "on"). This caused several other problems. Worst of all was the mouse cursor would shoot off to the upper left hand corner on it's own. Some Googling suggested unclicking "Scrolling / continue cursor movement", which fixes that problem, However, I can't scroll using the left edge or top edge, even though I have those options enabled

If I can't fix that problem, I'll have to uninstall it.

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