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Old 06-12-2006, 01:43 PM   #1
Registered: Jan 2006
Posts: 58

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Question Ubuntu will not shut down fully

Hi there
I have a couple of questions. I am dual booting Ubuntu 6.06 64 bit edition with Suse 10.1 64 bit edition on my HP Pavilion dv 5000. The Ubuntu distribution works great but will not shut down entirely until I hit the power button towards the very end. When booting the CD I had to use the following boot parameters: noapic, nolapic, acpi=off. I am wondering if any of these boot parameters have any influence on the computer not shutting down fully? Is it the acpi=off option that is the root of the problem? If so, will I be able to enable acpi and be able to boot properly, now that the distribution is fully installed on my hard drive? If I can in fact turn acpi on, how do I do this within Ubuntu? I am not entirely familiar with this distribution and it does not have any readily apparent tools to do this.

My other question is with regard to various partitions used by the two distributions such as var, opt, usr and home. Is it possible for two different distributions to use the same partions? Right not I have two distinct sets of partitions for each distribution but am curious to find out if I can simply have a single set of partitions for each distribution except for the root partition? Is this technically feasible? I am reseirfs as the file system for both distributions.

Thanks to anybody who can offer some helpful suggestions.
Old 06-13-2006, 01:28 AM   #2
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Registered: Dec 2005
Location: United Kingdom
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acpi is the function that controls auto shutdown. With this set to OFF, you must physically turn the power off. This is usually a parameter that is compiled into the kernel during configuration (if you compile a kernel). I know of no reason why Ubuntu (which is Debian based, btw) will not run just fine with acpi set to on. I believe it is possible to turn on acpi without recompiling the kernel, but hopefully someone will confirm that. In any case, I have used Ubuntu in the past with acpi on and it works just fine.

It is possible to share certain directories (.ie. /home or /usr) for different distrobutions, but as you have already noted, the root partitions must have their own dedicated partitions.

Hope this helps
Old 06-13-2006, 05:01 PM   #3
Registered: Jun 2004
Location: Nova Scotia, Canada!
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I have the shutdown problem sporadically on my Kubuntu 6.06 box. I'm fairly confident that it has to do with my proprietary ATI drivers, however. They seem to interfere with many of the power functions such as suspend and (apparently) full shut down.

Just for kicks, it might be worth switching to the generic VESA video driver (assuming you're not using it already) and seeing if that makes the problem go away. While you may not want to stick with VESA resolution, it might be interesting to see if your video drivers are the problem.

Just a thought...
Old 06-20-2006, 11:46 AM   #4
Registered: Jan 2006
Posts: 58

Original Poster
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Unhappy Ubuntu will not shut down fully..

Hi there
Thank you both for replying. The problem with the latest Ubuntu release is that I cannot even boot the live/installation CD without acpi=off option. It ends up in kernel panic if I try to boot with acpi on. Once the cd is installed I do not know how to turn it on. Can you help me with this? Thanks again for your help. I am also not sure how to use the vesa drivers instead of the proprietary ATI drivers. But I am not sure if this is the real issue since I cannot even boot the cd without acpi=off option.

One other issue with the Ubuntu installer in the live cd is that it does not like pre-existing partitions set up by Suse installer. When I try to install on to an existing primary partition set up by the Suse installer the Ubuntu installer repeatedly crashes. This is really frustrating since I cannot install Ubuntu without completely getting rid of Suse and using the entire hard drive. Again, any help is greatly appreciated! I like the Ubuntu distriubution since it supports my Broadcom wireless card automatically and it seems to be a reasonably good distribution.
Old 07-14-2006, 02:23 PM   #5
Orion Mayair
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Registered: Jul 2006
Location: Central Oregon
Distribution: Ubuntu & Kubunto 6.06 Dapper Drake
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Post Power Management Issues...

The 1st Thing to Check is your MotherBoard's BIOS Setting...

Most modern PC BIOS's have TWO Different PowerManagement Systems built-in...

My system is Dual Boot Windows XP and Ubuntu Linux system... If I turn OFF my APCI System windows and Ubuntu FAIL to BOOT.

In most cases you want to Turn-Off the APM System ( Before you Install Ubuntu ) and Leave the APCI Sytem Turned On.

As having BOTH On might create a problem with Ubuntu Installation... Having Trouble Configuring PowerManagement.

The APM is an Older System and I don't believe it supports ALL the Newer SOFT POWER Shutdown protocals.

I first installed Ubuntu 6.06 with the Genome Desktop and the shutdown I think was OK...
I later installed the Kubuntu 6.06 KDE Desktop which then created Selectable Desktop Options...
After doing this... I started having SHUTDOWN Problems.
I also installed the Xubuntu 6.06 Desktop and this had no effect on the Hanging Shutdown.
( In Most Cases I can get my computer to Reboot ( Not Shutdown ) by pressing the Ctrl + Alt + Deltete Key )

There are a few Sparatic Times when the Shutdown WORKS... Very Odd

I have installed and tried out both the Vesa Generic Video Driver and the ATI driver and this hasn't FIXED by Boot Hanging Problems... The ATI Driver is Much Faster and Supports 3d.

I think it's a Configuration Issue with the Ubuntu installation process... Because I've seen several posts about Shutdown Problems...

At least there's some more data on the subject,

Old 07-15-2006, 08:15 AM   #6
Registered: Jan 2006
Posts: 58

Original Poster
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Ubuntuy will not shut down fully..

Hi there
Thanks a lot for that! That is really useful information, will try it out and get back to you with whatever happens.


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