ACPI broken? - Gutsy will not boot

[Juksu]

Yesterday's updates broke ACPI (I suspect) on HP Compaq nc8430 laptops (two threads in Gutsy Development Forums about this).

The boot stops at different times, but always to the messages:

12.136... ACPI: bus type pci registered
12.136... PCI: Using configuration type 1
12.138... ACPI : EC: GPE=0x16, ports=0x66, 0x62

and there it freezes.

Later , a messsage may pop up:
38.736...: "CPU1:Temperature/speed normal "

A temporary fix is to add acpi=off and irqpoll options to grub menu.lst
But, since this is a laptop, it is important to get ACPI working.

It could be that the changes that were made specifically for Lenovo Thinkpads that appeared yesterday (there were plenty) have something to do with this.

Jukka

[jens (j-schuerks)]

I did a little research in google. Maybe it is related to the embedded Controller of the laptop not responding and enabling async scanning in .config of the 2.6.22 kernel

[Juksu (jluostar)]

Could be, if the recent updates (=yesterday) changed that part.
However, I do not know how to verify/test that without instructions.

Before yesterday's updates almost everything was working fine! (I'm running the 64-bit version of Gutsy)

Jukka

[Juksu (jluostar)]

This bug is related to bug 140635 here on launchpad!

[Basilio Kublik (sourcercito)]

i'm marking this report as duplicate of bug 140635, please add further info on that report.

[Juksu (jluostar)]

Ok, this bug is more descriptive, but I have added info to the other thread.
So:
 ACPI=on -> crash at boot
 ACPI=off -> no second processor core
is the issue.

[Launchpad Janitor (janitor)]

Beginning with the Hardy Heron 8.04 development cycle, all open Ubuntu kernel bugs need to be reported against the "linux" kernel package. We are automatically migrating this bug to the new "linux" package. However, development has already began for the upcoming Intrepid Ibex 8.10 release. It would be helpful if you could test the upcoming release and verify if this is still an issue - http://www.ubuntu.com/testing . If the issue still exists, please update this report by changing the Status of the "linux" task from "Incomplete" to "New". We appreciate your patience and understanding as we make this transition. Thanks!