It's kind of a semantics problem, it's really a resistive tablet overlay
with stylus support connected internally over USB instead of being an
actual touchscreen with BTN_TOUCH events. I'm pretty sure evdev will
work properly will the device though, and fedora is also assigning evdev
initially for ID_INPUT_TABLET devices. Looks like it was just an
oversight that that part was missing from the evdev rules. There are
proprietary drivers specifically for this device from the manufacturer
with xserver 1.7 support that look like they would work, but dell
distributes an older version for 9.04/9.10 only -
http://www.ideacom.com.tw/DR_UTS6680.htm
Here is the old fdi for this device under evtouch in karmic-
<?xml version="1.0" encoding="UTF-8"?> <!-- -*- SGML -*- -->
<deviceinfo version="0.2">
<device>
<match key="info.product" contains="IDEACOM">
<match key="info.product" contains="IDC 6680">
<match key="info.capabilities" contains="input.touchpad">
<merge key="input.x11_driver" type="string">evtouch</merge>
<merge key="input.x11_options.reportingmode" type="string">raw</merge>
<merge key="input.x11_options.taptimer" type="string">50</merge>
<merge key="input.x11_options.longtouchtimer" type="string">30</merge>
<merge key="input.x11_options.movelimit" type="string">15</merge>
<merge key="input.x11_options.emulate3buttons"
type="string">true</merge>
<merge key="input.x11_options.emulate3timeout"
type="string">50</merge>
<merge key="input.x11_options.minx" type="string">460</merge>
<merge key="input.x11_options.maxx" type="string">7920</merge>
<merge key="input.x11_options.miny" type="string">750</merge>
<merge key="input.x11_options.maxy" type="string">7660</merge>
</match>
</match>
</match>
</device>
</deviceinfo>
if evdev doesn't work, xserver-xorg-input-evtouch currently looks like
it doesn't work properly unless someone has a manual xorg.conf set up
for the device. it only installs a rule to create a symlink for evtouch
devices and needs fixing to also load evtouch for the devices and set
the default options, and our old fdi's need porting to that udev rule as
well.
--
Touchscreen doesn't work after karmic->lucid upgrade
https://bugs.launchpad.net/bugs/537801
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