Laptop not powering off

[Bill Christiansen]

I had a similar thing happen on my laptop way back when I first
installed Ubuntu. Due to the age of my bios (being an older laptop) acpi
didn't automatically load so I had the choice of using apm by adding the
word apm to the /etc/modules file or forcing acpi to load by adding the
acpi=force kernel parameter to the grub menu.lst file. Whether this
works depends on your specific hardware and bios version. One indication
whether power management is working is to add the battery charge monitor
to the Gnome panel and see if it is working properly.
Bill

On Tue, 2005-02-22 at 16:11 -0800, Ed Fletcher wrote:
>Raoul Snyman wrote:
>> Hi all,
>> 
>> I have Ubuntu installed on my laptop, but when I log out and shut down,
>> it doesn't power down the laptop. When I had SuSE installed, that would
>> power it down.
>> 
>> How do I get Ubuntu to do the same?
>
>There are two versions of the power management software.  One is called 
>ACPI and the other is APM.  Ubuntu may default to using one but SUSE 
>used the other.  I used a Knoppix disk and found that my laptop worked 
>well with the ACPI.  (It also helped me with my wireless card.)  You 
>could probably find a SUSE-based live CD (yep, found one - see below) 
>and see what it is using and how well it works.  I'm pretty sure that 
>APM will work with Ubuntu, but I haven't tried it myself.
>
>Try Knoppix (http://knoppix.org/ - Debian/KDE),
>Gnoppix (http://www.gnoppix.org/ - Debian/Gnome),
>Slax (http://slax.linux-live.org/ - Slackware/KDE),
>Suse 
>(http://www.novell.com/products/linuxprofessional/downloads/ftp/live_eval_int.html)
>
>Keep an eye on the boot process and note what power management software 
>is being loaded.  IIRC, Knoppix gave me a choice to use ACPI or APM.
>
>For a surprisingly long list of live cd's, see this page:
>http://www.frozentech.com/content/livecd.php
>
>HTH,
>Ed
>-- 
>Ed Fletcher
>ed at fletcher.ca
>
>What difference does it make to the dead, the orphans and the homeless,
>whether the mad destruction is wrought under the name of totalitarianism
>or the holy name of liberty or democracy?  -  Mahatma Gandhi (1869-1948)
>
>