[Nottingham] Touchscreen under X

James Dobson dob_3001 at yahoo.co.uk
Tue Nov 22 11:28:35 GMT 2005

A wild stab in the dark is 


you may want to try and see if anything appears in
'dmesg' as this may help in find out what the device
is, in anything driver related it *really* does help
to know what/who made the device.

James D

--- Michael Quaintance <penfoldq at penfoldq.co.uk>

> Hi
> I'm trying to get an old POS terminal to work as a
> touchscreen X-Server 
> for playing music through my hi-fi.
> It was sourced from eBay so there is no original
> documentation available 
> and the ncr.com website is useless. Google has so
> far been my friend but 
> is now letting me down so I am asking !lug for
> advice.
> I've managed to get the machine to boot using PXE
> and load a minimal 
> linux distro using the power of LTSP 4.1.1. I've got
> it running XDM and 
> running apps on the server with local display but
> the touchscreen is 
> proving more than a little awkward.
> I believe the touchscreen is connected through the
> PS/2 port which is 
> obscure enough that I can find no references to this
> in Google (serial 
> and USB but no mentions of PS/2). If I "cat
> /dev/psaux" and touch the 
> screen, I get lots of responses corresponding to my
> presses and drags.
> When I set my XF86Config (3.3.6 SVGA driver) to use
> either Elo or 
> Microtouch input drivers, I get a message from the
> X-Server "Unable to 
> configure {Elographics,Microtouch} touchscreen port:
> Inappropriate ioctl 
> for device"
> I assume that this message means I am either
> specifying the wrong device 
> for the touchscreen or the driver knows it is
> incapable of supporting 
> the particular touchscreen chipset I have. From the
> Windows98 install 
> that the terminal came with, I know it is a
> Microtouch device and does work.
> Anyone got any ideas, suggestions,
> stabs-in-the-dark?
> I'm willing to try just about anything to get this
> to work but I draw 
> the line at spending any money. This project has
> cost enough as it is.
> Thanks in advance.
> -Penfold
> PS I know this is yet another example of asking more
> questions than I 
> have answered but hopefully anyone with any clues
> will forgive me and 
> help anyway.
> _______________________________________________
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> Nottingham at mailman.lug.org.uk

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