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Re: XInput: Atmel maXTouch Digitizer touch screen

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On Wed, Dec 21, 2011 at 11:52:39PM +0100, Ben Bucksch wrote:
> I have unsuccessfully tried the whole day to configure the "Atmel
> maXTouch Digitizer" with USB ID 03eb:211c . This is a touch screen
> and does appear in X.org as input device. It is working rudimentary,
> but bad enough to be unusable.
> 
> The machine is a Samsung "Series 7 Slate" XE700T1A, a tablet with
> standard notebook hardware.
> I am using Ubuntu 11.10 with Ubuntu kernel 3.0.0-14-generic and
> xorg-server 1.10.4-1ubuntu4.2.
> 
> Problems:
> 
> 
> 1. ABSOLUTE
> By default, it's configured in Mode RELATIVE, but it's ABSOLUTE.
> When I do
> xinput --set-mode "Atmel Atmel maXTouch Digitizer" ABSOLUTE
> it works.
> But I need it at the login screen already.
> 
> I do not understand how to just change certain config options about
> an input device without changing the whole config.
> When I put in /etc/X11/x.org.conf.d/atmel.conf :
> 
> Section "InputClass"
>   Identifier  "Atmel touchscreen"
>   MatchProduct "Atmel Atmel maXTouch Digitizer"
>   MatchIsTouchpad "on"
>   Option "Mode" "Absolute"
> EndSection
> 
> then I get a complaint in the X.org log that the Driver is missing
> (yes, I shouldn't get that and I don't understand why I do). If I
> use Driver "synaptics", X.org log complains that it's not a
> synaptics device. If I use Driver "evdev", the clicking (mouse
> button, tapping) doesn't at all work anymore.
> 
> Either way, this should work OOTB. Can somebody please fix the
> driver to make it know that this device is ABSOLUTE?

please attach your log, it's too hard to guess which configuration doesn't
apply correctly.

> 2. Button not released
> 
> Sometimes, it generates only "button 1 pressed", but not "button 1
> released".

as Chase said, probably broken kernel driver or device.

Cheers,
  Peter
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