I have the same problem with the dell inspiron 2650. With the 2.6.27 kernel the next line is:
[ 0.762725] pci 0000:02:04.0: power state changed by ACPI to D0.
Now it just stops and I can only press the power button.
With the 2.6.28 kernel and pci=noacpi option the next line is:
[ 1.111966] pci 0000:02:04.0: found PCI INT A -> IRQ 10
I did some testing:
booting with the "acpi=off" kernel parameter -> normal boot
booting with "acpi=ht" kernel parameter -> normal boot
booting with "pci=noacpi" kernel parameter -> normal boot
booting with "acpi=noirq" kernel parameter -> same boot problem
booting with "pnpacpi=off" kernel parameter -> same boot problem
booting with "noapic" kernel parameter -> same boot problem
booting with "nolapic" kernel parameter -> same boot problem
The bios (A13) is up to date and gives no options concerning ACPI.
I have the same problem with the dell inspiron 2650. With the 2.6.27 kernel the next line is:
[ 0.762725] pci 0000:02:04.0: power state changed by ACPI to D0.
Now it just stops and I can only press the power button.
With the 2.6.28 kernel and pci=noacpi option the next line is:
[ 1.111966] pci 0000:02:04.0: found PCI INT A -> IRQ 10
I did some testing:
booting with the "acpi=off" kernel parameter -> normal boot
booting with "acpi=ht" kernel parameter -> normal boot
booting with "pci=noacpi" kernel parameter -> normal boot
booting with "acpi=noirq" kernel parameter -> same boot problem
booting with "pnpacpi=off" kernel parameter -> same boot problem
booting with "noapic" kernel parameter -> same boot problem
booting with "nolapic" kernel parameter -> same boot problem
The bios (A13) is up to date and gives no options concerning ACPI.