Re: ALPS touchpad ot correctly recognized: GlidePoint vs DualPoint

["Pali Rohár" <pali.rohar@gmail.com>]

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On Saturday 09 September 2017 10:12:42 Juanito wrote:
> Hello,
> 
> On 09/08/2017 08:48 AM, Pali Rohár wrote:
> > On Friday 08 September 2017 07:00:34 Juanito wrote:
> >>> ThinkPad with ALPS? Should not be it Synaptic? Maybe
> >>> miss-detection?
> >> 
> >> Sorry, I forgot to mention this. The ThinkPad came with a clickpad
> >> I **really** disliked, so I bought this on the Internet.
> > 
> > So, here is a problem. ThinkPads works with Synaptic touchpads, not
> > with ALPS.
> 
> There definitely seems to be a problem here :)
> 
> Do you mean that the alps code might not be detecting the trackpoint
> because probably the red thingie works with synaptics?
> 
> So could this be the situation:
> ALPS driver: Hey touchpad! Do you have a trackstick?
> ALPS touchpad: No, I don't.
> AD: Ok! (and thinks 'I am going to have to ignore all trackstick
> packets that might arrive')
> 
> So the driver understands that there can't possibly be any buttons
> because there is no trackstick?

IIRC ALPS touchpad hardware itself does not work with non-ALPS 
trackpoint.

Masaki, any comments?

> >> If by trackstick you mean the red thingie, it is **not** working.
> > 
> > Ok. And it is working with your patch?
> 
> No, it isn't :(

I expected... You just created franken-hardware.

Looks like with your hack patch it is possible to make buttons working, 
but I suspect that trackstick would.

Maybe Masaki can provide more information about this fact if we can do 
anything.

Dmitry, what you as maintainer going to do with this problem?

-- 
Pali Rohár
pali.rohar@gmail.com

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