Hi Joachim!

On Sat, 27 Dec 2008 14:37:29 +0100, Joachim Breitner wrote:
> I just installed xserver-xorg-input-tslib (0.0.5-3) from experimental.
> Unfortunately, a change there (which is probably this patch: [...]  )
> makes it use hal to detect the input device.

This is the default on X.Org_1.5, together with the fact that it relies
on evdev to manage the input devices.  However, theoretically this
should not break old configurations and indeed for x-x-i-tslib hal is
only a Recommends:.

> It also changes the option name from "TslibDevice" to "Device".

I welcome very much this change, because it render the x-x-i-tslib
consistent with other input drivers.

> This means for existing users that, after you upgrade, you either have
> to modify your xorg.conf, or that you have to install hal.

The former is necessary and unfortunately I do not see any other
solution.  The latter, however, should not be necessary: I installed
x-x-i-tslib from experimental and without hal it just work :-)

> It also means that we have to adjust the installer. Which should we
> do?  Install hal by default?

Short answer: it is not necessary.

Long answer: Iwould strongly disagree, at least because it requires too
much space:
=====
debian-gta02:~# apt-get install hal
[...]
The following extra packages will be installed:
  console-common console-data hal-info kbd libhal-storage1 pm-utils
  usbutils
Suggested packages:
  unicode-data gnome-device-manager cpufrequtils
Recommended packages:
  eject uswsusp vbetool radeontool
The following NEW packages will be installed:
  console-common console-data hal hal-info kbd libhal-storage1 pm-utils
  usbutils
0 upgraded, 8 newly installed, 0 to remove and 9 not upgraded.
Need to get 3178kB of archives.
After this operation, 8974kB of additional disk space will be used.
Do you want to continue [Y/n]?
=====

Most of the space is for console stuff:
=====
debian-gta02:~# apt-get install console-common
[...]
The following extra packages will be installed:
  console-data kbd
Suggested packages:
  unicode-data
The following NEW packages will be installed:
  console-common console-data kbd
0 upgraded, 3 newly installed, 0 to remove and 9 not upgraded.
Need to get 1593kB of archives.
After this operation, 5181kB of additional disk space will be used.
Do you want to continue [Y/n]?
=====

While hal does not directly depend on console stuff, pm-utils does.  The
reason hal requires pm-utils is because of suspend support:

  http://svn.debian.org/wsvn/pkg-utopia/packages/unstable/?rev=1808&sc=1

--8<---------------cut here---------------start------------->8---
hal (0.5.10-1) unstable; urgency=low

  [ Michael Biebl ]
[...]
  * debian/control
[...]
    - Add a Depends: pm-utils. Beginning with this release we will only
      support pm-utils as suspend infrastructure.
[...]

 -- Michael Biebl <[email protected]>  Mon, 22 Oct 2007 14:42:59 +0200
--8<---------------cut here---------------end--------------->8---

This ringed a bell on my head and indeed I already asked for downgrading
the dependency on pm-utils to a Recommends: (check also the merged bug
for a more detailed discussion):

  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=448197
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=477913

We will need to monitor that bug as well :-(

Thx, bye,
Gismo / Luca

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