Bug#632419: support for serial pointer device

[Jonathan Nieder <jrnieder@gmail.com>]

Hi again,

Jonathan Nieder wrote:
> axst@users.sourceforge.net wrote:

>> But even if I make it work or create a barebones X configuration file just with the
>> Pointer Device set to /dev/ttyS0, the pointer is not functional.
>
> If this is true and xserver-xorg-input-mouse is installed, then it
> would definitely be an X bug.

Hm, /usr/share/doc/xserver-xorg-input-mouse/README.gz says:

	  The old Pointer section has been replaced by a more general
	  InputDevice section. The following is a minimal example of an
	  InputDevice section for a mouse:


	  Section "InputDevice"
[...]

That text dates back to long ago (before version 1.1.2 of the X mouse
driver at least), and the example xorg.conf you sent uses an InputDevice
section, so I assume you're doing okay there.  More to the point,
/usr/share/doc/xserver-xorg/NEWS.Debian.gz says:

	xserver-xorg (1:7.4+1) unstable; urgency=low

	  * Changes in handling of input devices

	  Starting from this version, input devices are no longer configured
	  statically in /etc/X11/xorg.conf.  Instead, input devices are detected at
	  runtime (and can be hotplugged) and configured individually.  The default
	  keyboard layout is shared with the console and is configured in
	  /etc/default/keyboard.  As a result, devices configured in xorg.conf to
	  use the mouse or kbd driver are ignored by the X server by default.

	  For more details, see:
	  http://who-t.blogspot.com/2008/12/evdev-xorgconf-hal-and-other-fud.html
	  http://who-t.blogspot.com/2008/10/new-keyboard-configuration-handling.html

and continues by explaining that one might need to disable
AutoAddDevices to keep manual configurations working.  Perhaps that
information was not shown on upgrade for some reason.