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I've had Ubuntu for a few months now, and since I installed it has not shut down properly; I have to switch it off by holding the off button down for a few seconds.This problem happened in 8.08 and still happens in 8.10.
It gets to the end of the bar, so it is all black, there is a click and the keyboard switches off. Then nothing, it just hangs there.
When I start up I get a brief message about acpi force off, bios settings or something. I can't be sure because it's to brief to read.
I can't say personally, as I've never had this issue. But I googled your problem and found quite a lot of conversation about it on several sites, and it is a known bug. As for the solution, which was found on all of them, the worst-case scenario was one person who said that it simply didn't fix the problem. Everyone else who tried it was more than satisfied.
Last edited by DragonSlayer48DX; 11-28-2008 at 05:01 PM.
According to your Ubuntu thread, you're using an epox 8k5a3+ motherboard. It's not exactly cutting edge, as near as I can see, so it may be a problem with the age of the BIOS and ACPI. I have that problem with my IBM T20 laptop. Open a terminal and enter
sudo lshw | less
There should be en try (probably under *-firmware) that lists your BIOS info. Here's what mine looks like:
version: Not Available
width: 32 bits
capabilities: smbios-2.3 dmi-2.3
configuration: boot=normal chassis=notebook uuid=A9BF1A80-4341-11CB-AEE8-97125F776C31
physical id: 0
version: Not Available
physical id: 0
version: IYET60WW (1.21 ) (12/21/1999)
capabilities: isa pci pcmcia pnp apm upgrade shadowing escd cdboot bootselect pcmciaboot edd int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer int10video acpi agp ls120boot biosbootspecification
Note the date (12/21/1999). When mine wouldn't shut down properly, I found an error message stating that the ACPI would not be loaded due to the age of the BIOS - even though I had loaded the latest update just a couple of years ago. AFter some research, I found a solution that works for me. Modify your /etc/modules file by making an entry in the last line. I've had no further problems
# /etc/modules: kernel modules to load at boot time.
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
# This note is carried over from Kubuntu 7.10
# JHG 2-19-08 Tested /etc/init.d/halt and made changes that are
# related to "halt: ... " message on shutdown; incomplete power off.
# This is O.K. Have corrected S90halt and S90reboot to eliminate the "halt: ... "
# notice. Took out the references to "hddown=", not needed, no RAID.
# Took out reboot -i and halt -i since kernel takes care of IDE drives.
Look in your /boot/grub/menu.lst file and see if you have boot parameters such as "acpi=force" or anything else related to acpi. If that exists, it may be that a forced install of acpi is trying to give messages to your BIOS that the BIOS can't process.