[Bug 364156] Re: powernow-k8: BIOS does not provide ACPI -PSS objects in a way that Linux understands

[Tom Pringle]

I've already "fixed" this problem on my Lenovo laptop by building in a
custom DSDT.  As I understand it, this means I have to merge the table with
each new kernel change and rebulid.   I guess that will be need less often
once 10.04 is released.

Note that i see this problem on all 6 AMD platforms I work with.

I've also filed this bug up stream with no positive outcome.

If Windows can handle the situation I'm not sure how we can conclude the
BIOS is the problem?

On Tue, Apr 13, 2010 at 3:30 AM, David Gaarenstroom <
david.gaarenstroom at gmail.com> wrote:

> @Tom Pringle: even though you get the same kernel warning (symptom), for
> you this is a different situation, because you are using completely
> different hardware (cause). That is also why I think similar bug reports
> for different hardware should not be merged
>
> AFAIK, there can be three main causes for this warning:
> 1) Your BIOS is not configured to support C 'n' Q
> 2) Your BIOS is incomplete
> 3) You are using a different (newer) CPU than the ones your motherboard
> supports
>
> For Lenovo I know they offers _incomplete_ ACPI information, you will
> have to override your ACPI data by using a custom DSDT. You should be
> able to find some howto's on the Internet, I don't have the full
> details...
>
> But either way, these bug reports do not apply to any software in
> Ubuntu, except that you cannot use a customized powernow-k8 driver
> because this module is built into the kernel image...
>
> --
> powernow-k8: BIOS does not provide ACPI -PSS objects in a way that Linux
> understands
> https://bugs.launchpad.net/bugs/364156
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in The Linux Kernel: In Progress
> Status in “linux” package in Ubuntu: Won't Fix
>
> Bug description:
> Hello,
> In Jaunty freshly installed and updated.
> Booting, I've got the message:
> [Firmware bug]: powernow-k8: BIOS does not provide ACPI -PSS objetcs in a
> way that Linux understand....
>
> If you want any file or information, please ask: i'll send you...
> Thanks in advance.
> Laurent
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/linux/+bug/364156/+subscribe
>

-- 
powernow-k8: BIOS does not provide ACPI -PSS objects in a way that Linux understands
https://bugs.launchpad.net/bugs/364156
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