Comment 4 for bug 119583

Quite the same thing for me on my laptop : Lenovo 3000 C200 8922AZG

[ 0.000000] ACPI: BIOS bug: multiple APIC/MADT found, using 0
[ 0.000000] ACPI: If "acpi_apic_instance=2" works better, notify <email address hidden>

I'm using : ~$ uname -a
Linux NEANT 2.6.22-14-generic #1 SMP Tue Feb 12 07:42:25 UTC 2008 i686 GNU/Linux

I have included the DSDT.aml in the initrd following the HOWTO :
https://help.ubuntu.com/community/ACPIBattery

The dsdt compilation shows no error and no warning.
I have just dpkg-reconfigure the kernel, including the DSDT.aml file in the directory : /etc/initramfs-tools/.

I always get the same lines in dmesg...

I'll try to verify how it was under Feisty, but I didn't have any problem with power management with the previous kernel (2.6.20 if I remember)

So since there is no bug in the dsdt compilation, couln't it be a kernel bug?