Avoid HAL on Ubuntu 10.04?

[Peter Smith]

On Wed, Sep 22, 2010 at 6:16 PM, NoOp <glgxg at sbcglobal.net> wrote:
>>
>> Maybe you are thinking of the "apt-cache rdepends" command.
>
> Thats it thanks.
>
>>
>> Do you get the precise same warnings as me?
>
> Yes:
>
> ** (gnome-power-manager:1489): WARNING **: Either HAL or DBUS are not
> working!
>
> ** (gnome-power-manager:1489): WARNING **: proxy failed
>
> ** (gnome-power-manager:1489): WARNING **: failed to get Computer root
> object
>
> ** (gnome-power-manager:1489): WARNING **: proxy NULL!!
>
> I also get this:
> (gnome-power-manager:1489): GLib-GObject-WARNING **:
> /build/buildd/glib2.0-2.24.1/gobject/gsignal.c:2273: signal
> `proxy-status' is invalid for instance `0x8dad8f0'
>
> But was told by Chris Coulsen that "it's only a warning"
> <https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/614248/>
> (comments 13 & 14).
>
>> I have also tried to
>> install HAL on the test system, that removed the warning some time,
>> but then suddenly it was back even though HAL still was installed.
>
> $ apt-cache policy hal
> hal:
>  Installed: 0.5.14-0ubuntu6
>  Candidate: 0.5.14-0ubuntu6
>  Version table:
>  *** 0.5.14-0ubuntu6 0
>        500 http://us.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages
>        100 /var/lib/dpkg/status
>     0.5.14-0ubuntu5 0
>        500 http://us.archive.ubuntu.com/ubuntu/ lucid/main Packages
>
>>
>> I haven't found the last link before, i would try to read through that page now.

After doing some more research i decided to NOT install HAL, as i do
not want "a large monolithic unmaintainable mess" on my system =)

HAL has been removed fully from the boot process in Ubuntu 10.04
according to this link:

https://wiki.ubuntu.com/LucidLynx/TechnicalOverview

The following link also explains that HAL is no longer involved in
device configuration with 10.04:

https://wiki.ubuntu.com/X/Config/Input#Input%20Configuration%20with%20udev%20%28Ubuntu%2010.04%29

According to your link about debugging Gnome Power Manager, HAL has
been deprecated since Ubuntu 9.10

https://wiki.ubuntu.com/DebuggingGNOMEPowerManager#Debugging%20procedure

It seems that pitivi still depends on HAL, this might be the reason
why HAL is still installed default on 10.04:

https://wiki.ubuntu.com/Halsectomy

I have tried to download the latest Gnome Power Manager source and
compile it to a deb that i installed on the system, after doing that
the "Either HAL or DBUS are not
working!" and the "proxy-status is invalid for instance" warning
disappeared from the xsession-errors file, but i don't want to
manually update packages on my system so i just stick with the version
from the repository and ignore the warnings in xsession-errors.