Re: Re: IBM Thinkpad A31 | ACPI problems

[Dom <dom-K271P2BsTd0@public.gmane.org>]

Dear Sandro,

I posted the following message to the "Thinkpad A20,A21,A22,A30,A31" forum at 
IBM. Currently it looks like the posting has not been opened to public yet? I 
hope that IBM will provide a patch or that we can assist in creating a work 
around for the buggy bios. I know several friends who are running Linux on 
their A31's. Currently we all stick to kernel 2.4.19 + acpi-20020918 patch. 
This combination provides at least some support for ACPI. 

Thanks to the hard-working acpi-development team!
Dom

--------
Topic:      ACPI Linux (1 of 1), Read 10 times
Conf: ThinkPad A20,A21,A22,A30,A31
From: bartenst
Date: Thursday, January 02, 2003 03:07 PM

Hi all!

I am successfully running Gentoo Linux
(http://www.gentoo.org) on my new A31. Unfortunately
ACPI is not getting initialized properly with the new
acpi-patch from 20021212 ( + vanilla 2.4.20). I consulted
the acpi developers (http://acpi.sf.net) who told me that the
problem is the buggy BIOS! Is IBM aware of that problem
and are there any ongoing efforts to solve this problem?

Thanks!
Dom

p.s.
http://marc.theaimsgroup.com/?l=acpi4linux&m=103643408113691&w=2
summary:
"In short, ECDT -> EC_ID is supposed to be the full path
name of your EC device in ACPI Namespace like
"\_SB.PCI0.LPC.EC", but __NOT__ in your BIOS. You
can work around your problem by adding hack code, but it
makes OS
code dirty to save broken BIOSes and it allows BIOS
vendor not to fix their problem."
----------

On Thursday 02 January 2003 22:31, you wrote:
> > sorry - i did not see Andy Grover's reply to Sandro earlier on. So the
>
> problem
>
> > is a bug in the BIOS implementation. I have already contacted IBM via
> > "Ask
>
> an
>
> > expert" and posted a message to http://www7.pc.ibm.com/~Thinkpad and I
>
> really
>
> > hope that they will reply. I will keep you up to date.
>
> Uh!
> I didn't know that IBM has a forum. Where is your question located (I can't
> find it)? Can you please email me if you find a solution for the whole
> prob? I also questioned IBM about that prob a few days ago, but via support
> - no answer so far.
>
> Sandro


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