[ltp] Trackpoint and mouse - scroll doesn't work

Piotr Wydymus linux-thinkpad@linux-thinkpad.org
Tue, 4 Jul 2006 23:10:28 +0200


> Unfortunately, the PS/2 port and the Trackpoint are the same mouse (on
> pre-synaptics thinkpads); they both are connected "in series"
> internally, and both write to /dev/psaux.

Ha, thanks. It's pity.

> The BIOS has an option for what to do in this case; you can disable one
> or the other, but you can't make them independent.

I've noticed that, but in case I use WiFi, and disconnect my T23 from dock 
many times it isn't a solution.

> So you can't do what you want to do, unless you use a USB mouse.

Ha, good idea. But the question is: "Why in Windows XP everythink works fine?" 
i.e. "third button scroll" in trackpoint works, and mouse scroll too - in 
traditional way?

> Note: what you have actually done here is to create 2 devices (in
> xorg.conf) which use the same device (in /dev/).  This makes no sense,
> and I suspect that xorg.conf is ignoring the second stanza
> [psaux is already open; I bet you have AllowMouseOpenFail enabled].
> Then, you just have the external PS/2 mouse acting exactly the same way
> as the trackpoint.

Fact. But i've tried also /dev/input/mouse0 /dev/input/mice instead of one 
psaux. The only difference was that in one case third trackpoint button 
and "scroll" worked as hmm... "mark tool" (?) - I mean it marked like Shift + 
cursor.

Cheers,

-- 
Piotr Wydymus
GG: 2904275