Happens on Gutsy.
Didn't have this issue on Feisty.
Don't know if it is related, but Gutsy lockups on X after running for a few
hours unattended.
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PCI error messages when booting
https://bugs.launchpad.net/bugs/31185
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Bugs
In amilo 3438g laptop, pci=noacpi nolapic acpi=off gives additional error:
BIOS bug, local APIC #0 not detected!...
And frecuency scaling stops working.
None of the boot options pointed by Ben work, the devices that seem to
have problems are:
:00:1e.0 PCI bridge: Intel Corporation 82801 Mobil