I also have a Dell Inspiron 1501 and am running Kubuntu 7.10 32-bit (i386):
Linux xander 2.6.22-14-generic #1 SMP Sun Oct 14 23:05:12 GMT 2007 i686 
GNU/Linux

Somewhere else I read that warnings like these are caused by running a 32-bit 
Ubuntu on a 64-bit system:
[    0.516000] ..MP-BIOS bug: 8254 timer not connected to IO-APIC
[    0.604000] PCI: BIOS BUG #81[49435000] found
[    0.628000] PCI: Cannot allocate resource region 7 of bridge 0000:00:05.0
[    0.628000] PCI: Cannot allocate resource region 8 of bridge 0000:00:05.0

I tried different kernel switches and combinations thereof, e.g.
  - pci=nomsi
  - pci=nomsi noapic nolapic
  - noapic nolapic
  - acpi=force 
  - acpi=force irqpoll
but to no avail. I cannot restart the system of shot down with switch-off. I 
alsways have to manually switch off the system.

BTW, I am running the latest firmware with high precision timer and
tried switching it on as well as off. No difference in behaviour. I
really don't know what else to try.


** Attachment added: "/var/log/dmesg"
   http://launchpadlibrarian.net/10346815/dmesg

-- 
Shutdown problem in Dell Inspiron E1505
https://bugs.launchpad.net/bugs/94161
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