No ACPI with 2.6.22-14-generic

[Nebula]

Hi all!

Since I've updated to Gutsy my ACPI doesn't work anymore. This is with the:

Linux klapdoos 2.6.22-14-generic #1 SMP Tue Dec 18 08:02:57 UTC 2007 i686 GNU/Linux

kernel. When I change back to the:

Linux klapdoos 2.6.20-16-generic #2 SMP Sun Sep 23 19:50:39 UTC 2007 i686 GNU/Linux

kernel my ACPI works flawlessly again. When I try to cat the /proc/acpi/event in the 2.6.22 kernel nothing appears, whereas the 2.6.20 kernel does show the ACPI messages.

What can I do to re-enable the ACPI support in 2.6.22??

Thanks in advance!

Greetz Jasper van Zuijlen

[SheeEttin]

Re: No ACPI with 2.6.22-14-generic

Edit /boot/grub/menu.lst (e.g. "kdesu kate /boot/grub/menu.lst") and modify the 2.6.22-14-generic kernel line, appending "acpi=force".
It should look something like this:

kernel     /boot/vmlinuz-2.6.22-14-generic root=/dev/sda1 ro quiet splash acpi=force

.
Reboot and you're done.

Note that if grub-update is run (e.g. when installing, removing, or updating kernel images), this option will be lost. Consider adding it to the defoptions line higher up.