[ltp] trackpoint not working properly

[Matt Graham]

On Tuesday 30 November 2004 14:47, after a long battle with technology, 
Meike Reichle wrote:
> > the device uses PS/2 and you've specified IMPS/2, that'd cause the
> > symptoms you describe.
> That was the problem. Trackpoint now works like a charm :) (Stupid
> question, is the trackpoint "clickable", too?)

What do you mean by "clickable"?  If you meant "does pressing down on 
the Trackpoint generate a button 1 press?", then it probably doesn't.  
It certainly doesn't on an A22p.  The reasons for this should be 
obvious since the Trackpoint gets pushed down to some extent under 
normal usage.

> > Hmm.  This is, IIRC, a problem with X's architecture.  X only scans
> > for devices on startup; if a device is not present at startup, it
> > won't be used.
> Everyone I asked assured me it worked great with their Xs. Maybe they
> all use x.org, might be.

Another poster said he only had one InputDevice section and it was 
pointing at /dev/input/mice .  This device is a pseudo-device that can 
collect events from all mice that are connected (at least in the 2.6 
kernels) and repeat them in a protocol of the user's choice (usually 
IMPS/2).  That might work for you.  Or not... comments in 
Documentation/input/ say that it currently collects events from USB 
devices only, but those comments may be out of date.

> A single [InputDevice] section doesn't work. With this entry X only 
> starts if there's a mouse connected to the laptop.

Hm.  There may be a kernel parameter you have to pass to have the PS/2 
device repeat on /dev/input/mice .  I don't know what that is since I'm 
still using a 2.4 kernel.  psmouse.proto=imps?  I don't really have the 
resources to test this stuff since I don't have any USB mice or 
machines with a 2.6 kernel here.

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