On Thu, 2006-07-20 at 18:58 +0200, Magnus Vigerlöf wrote:
> On Tuesday 18 July 2006 22:18, Andrew Bowden wrote:
> > Hello.
> [...]
> > However what I am getting is problems where the tablet doesn't always
> > seem to map correctly to the screen - these are intermittent problems.
> > For example, it might stop about 50px from the top of the screen, or
> > 100px from the left.
> [...]
> > but xidump stylus or xidump cursor gives me:
> >
> >     X Error: 166 BadDevice, invalid or uninitialized input device
> >     Unable to open input device 'stylus'
> 
> This seems to be an X-configuration issue. Check your X-config 
> (/etc/X11/xorg.conf or equiv) for an 'InputDevice'-section with an identifier 
> named 'stylus'. Ensure that the Device-option points to a valid device 
> (preferably the Wacom-tablet).

That was indeed a config issue - I had it set up to /dev/input/event0
when actually it was /dev/input/event2

> If it jumps around, check out the Howto: 
> http://linuxwacom.sourceforge.net/index.php/howto/newwacom

It's not jumping around - it's that the edge of the screen as far as the
tablet is concerned, is not /always/ the edge of the screen physically.
One minute it will map perfectly onto my 1280x1024 screen - the next
minute it will only do (something like) 1152x768.  The rest being
ignored.

Incidentally yesterday I tried building the lastest version of the
driver from the website - I don't know which version Ubuntu Dapper
includes - but 0.7.4-3 built directly has exactly the same problem as
whatever is built into Ubuntu.


On the issue of the 10-wacom.rules file - Ubuntu has almost identically
set up what's listed on the HOWTO (I checked that yesterday as well).


If it helps, this is what's in my xorg.conf

Section "InputDevice"
  Driver        "wacom"
  Identifier    "stylus"
  Option        "Device"        "/dev/input/wacom"          # Change to
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "stylus"
#  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection

(same for cursor and eraser - not that the Volito2 has an eraser!)


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