Matt Zimmerman skrev:
> Please don't assign bugs; this is clearly not a desktop issue.
>
>   
Sorry - this was my first use of Launchpad (I probably should have read 
some documentation first). I did not conciously "assign" the bug in any 
way - I just added a comment to the already existing bug report without 
changing any default values.

> Please tell us which kernel last worked correctly for you
>
> ** Changed in: acpi (Ubuntu)
> Sourcepackagename: acpi => linux-source-2.6.15
>      Assignee: Ubuntu Desktop Bugs => (unassigned)
>   
with Ubuntu, kernel 2.6.12-9-386 poweroff  worked (and still does when I 
just tried even though many other errors are generated by booting the 
dapper beta system with the breezy kernel). Some differences between the 
dmesg for the old and new boot are below. (I grepped for ACPI, tried to 
reorder into the same order and noted the differences.)

Tell me if I should submit any more data or try something else.

/Patrik

dapper beta:
ACPI: Subsystem revision 20051216
ACPI: bus type pci registered
ACPI: Looking for DSDT ... not found!
PCI quirk: region 1000-107f claimed by ICH6 ACPI/GPIO/TCO
ACPI: Embedded Controller [EC0] (gpe 23) interrupt mode.

ACPI: PCI Interrupt 0000:00:01.0[A] -> GSI 16 (level, low) -> IRQ 169
ACPI: PCI Interrupt 0000:00:01.0[A] -> GSI 16 (level, low) -> IRQ 169
ACPI: PCI Interrupt 0000:00:1b.0[A] -> GSI 19 (level, low) -> IRQ 225
ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 17 (level, low) -> IRQ 217
ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 225
ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 21 (level, low) -> IRQ 177
ACPI: PCI Interrupt 0000:00:1d.3[A] -> GSI 17 (level, low) -> IRQ 217
ACPI: PCI Interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 209
ACPI: PCI Interrupt 0000:00:1f.1[B] -> GSI 18 (level, low) -> IRQ 201
ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 18 (level, low) -> IRQ 201
ACPI: PCI Interrupt 0000:01:00.0[A] -> GSI 16 (level, low) -> IRQ 169
ACPI: PCI Interrupt 0000:06:05.0[A] -> GSI 21 (level, low) -> IRQ 177
ACPI: PCI Interrupt 0000:06:05.0[A] -> GSI 21 (level, low) -> IRQ 177
ACPI: PCI Interrupt 0000:06:05.2[C] -> GSI 20 (level, low) -> IRQ 233
ACPI: PCI Interrupt 0000:06:08.0[A] -> GSI 20 (level, low) -> IRQ 233
ACPI: PCI Interrupt 0000:06:0b.0[A] -> GSI 22 (level, low) -> IRQ 50

breezy:
ACPI: Subsystem revision 20050729
ACPI: bus type ide registered
ACPI: Embedded Controller [EC0] (gpe 23)
ACPI: Assume root bridge [\_SB_.PCI0] segment is 0

ACPI: PCI Interrupt 0000:00:01.0[A] -> GSI 16 (level, low) -> IRQ 16
ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 17 (level, low) -> IRQ 17
ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 19
ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 21 (level, low) -> IRQ 21
ACPI: PCI Interrupt 0000:00:1d.3[A] -> GSI 17 (level, low) -> IRQ 17
ACPI: PCI Interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 23
ACPI: PCI Interrupt 0000:00:1f.1[B] -> GSI 18 (level, low) -> IRQ 18
ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 18 (level, low) -> IRQ 18
ACPI: PCI Interrupt 0000:01:00.0[A] -> GSI 16 (level, low) -> IRQ 16
ACPI: PCI Interrupt 0000:06:05.0[A] -> GSI 21 (level, low) -> IRQ 21
ACPI: PCI Interrupt 0000:06:08.0[A] -> GSI 20 (level, low) -> IRQ 20