"Charles" <nothing@nothing.com> writes:

> Hi,
>
> I installed Gentoo on my Sony laptop. I configured the standard embedded pointing device, and today
> I added a Kensington trackball. The trackball uses a standard mini-din connection. I want to be able
> to use both of them (trackball at home, default device when I travel)
> I rebooted the computer and the trackball hasn't been detected. How can I have it to work? I've read
> on a google search that I have to edit the X86Config file, but then I'm stuck... Also I'd like to
> configure each of the 4 buttons around the central ball. Can I do it on Gentoo?

In general the answer will be yes, but I know nothing about Sony laptops, so beware ;-)

There are two considerations: First, the physical device must be
supported by the kernel before X can use it. Second, your XF86Config
file must be correct before X will use the physical device.

What device is the trackball connected to? My guess would be a ps/2 port,
but I don't know. Do you?

Second, what kind of built-in mouse does the machine have? Your XF86Conifg
should tell you that if X is working okay. The section marked "InputDevice"
dealing with mice should tell you what X is using now.