[gpm]Problem making my touchpad work

[Henry]

Hi,

I am the one who wrote the Synaptics Touchpad code for GPM.  It sounds
like your problem could be one of two things.  Either your touchpad is
not made by synaptics, or they have changed their protocol in an
incompatible way.  

I did try to get information on the protocol used in another touchpad
(Cat I believe) but they didn't seem to want to answer my email, so no
go.

Since I wrote the touchpad code I have managed to lose the document
which describes the protocol, and I can't find it on the net any more. 
But if I did find it, I don't have the hardware to test with if they
changed their protocol.

So, the short answer is, it doesn't sound compatible for some reason,
and I don't think I can help since I don't have the documentation or the
hardware to test with.

Since my work was based on what was done in tpconfig, you might look
there to see how that has changed since I developed the Synaptics code.

Sorry I am not very helpful here.

henry

Maier Gerfried wrote:
> 
> Hello!
> 
> I have gpm in usee on all my computers and I am quite happy with it,
> thats why I want to make gpm run on my notebook. Unfortunately there are
> some problems with my touchpad:
> 
> It works without any problems using the -t ps2 option, but with this
> option no touchpad-specific features are supplied. (moving along an
> endge causes scrolling, droppint two fingers means "middle mouse button"
> and so on).
> When I tried to use the -t synps2 option I was disappointed. The
> mouse-pointer did not move any more, instead of this many log-messages
> are generated from gpm to the syslog, like:
> 
> Oct 15 01:03:10 moali ./gpm[1250]: Invalid ACK in synps2 initialization
> Oct 15 01:03:10 moali last message repeated 2 times
> Oct 15 01:03:10 moali ./gpm[1250]: tossing PS/2 data:
> Oct 15 01:03:10 moali ./gpm[1250]: 28
> Oct 15 01:03:10 moali ./gpm[1250]: AA
> Oct 15 01:03:10 moali ./gpm[1250]: 55
> Oct 15 01:03:10 moali ./gpm[1250]: 00
> Oct 15 01:03:10 moali last message repeated 2 times
> Oct 15 01:03:10 moali ./gpm[1250]: tossing PS/2 data:
> Oct 15 01:03:10 moali ./gpm[1250]: 0B
> Oct 15 01:03:10 moali ./gpm[1250]: AA
> Oct 15 01:03:10 moali ./gpm[1250]: 55
> Oct 15 01:03:10 moali ./gpm[1250]: 00
> Oct 15 01:03:10 moali last message repeated 2 times
> Oct 15 01:03:10 moali ./gpm[1250]: tossing PS/2 data:
> Oct 15 01:03:10 moali ./gpm[1250]: DC
> Oct 15 01:03:10 moali ./gpm[1250]: 38
> Oct 15 01:03:10 moali ./gpm[1250]: DD
> Oct 15 01:03:10 moali ./gpm[1250]: CC
> Oct 15 01:03:10 moali ./gpm[1250]: 38
> Oct 15 01:03:10 moali ./gpm[1250]: D3
> Oct 15 01:03:11 moali ./gpm[1250]: tossing PS/2 data:
> Oct 15 01:03:11 moali ./gpm[1250]: FA
> Oct 15 01:03:11 moali ./gpm[1250]: 18
> Oct 15 01:03:11 moali ./gpm[1250]: E5
> Oct 15 01:03:11 moali ./gpm[1250]: 16
> Oct 15 01:03:11 moali ./gpm[1250]: 08
> Oct 15 01:03:11 moali ./gpm[1250]: 03
> Oct 15 01:03:11 moali ./gpm[1250]: tossing PS/2 data:
> Oct 15 01:03:11 moali ./gpm[1250]: 2D
> Oct 15 01:03:11 moali ./gpm[1250]: AA
> Oct 15 01:03:11 moali ./gpm[1250]: 55
> Oct 15 01:03:11 moali ./gpm[1250]: 16
> Oct 15 01:03:11 moali ./gpm[1250]: 08
> Oct 15 01:03:11 moali ./gpm[1250]: 03
> 
> Is this just due to a misconfiguration of gpm or synps2 (I have not
> generated the .conf-file yet) or is my touchpad not supported in
> general?
> 
> The problem occurs with gpm 1.18 and 1.19.6.
> 
> Thanks a lot for your help.
> Maier Gerfried
> 
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