Re: Problems installing ACPI

[Heiko Ettelbrueck <hbruckynews-hi6Y0CQ0nG0@public.gmane.org>]

Hi Christian,

Christian Brix Folsted Andersen wrote:
> I'm running RedHat 8.0 on my Compaq EVO N160 laptop.
> 
> What might be the problem?

As far is I know, it's because of some errors in the DSDT of the Compaq 
Evo N160. I also have this notebook and have fixed at least the obvious 
errors (and wrong information about the battery).

--> You should take a fixed DSDT and include in into your kernel.

Steps:
- Get a fixed DSDT. You could try mine from 
http://www.ettelbrueck.de/linux-acpi/compaq-evo-n160/acpi_dsdt.asl , but 
you should alter it to fit to your battery. I've coded the current 
maximum capacity of my battery (3357 mAh instead of 4000 mAh for a new 
battery) into it - see my posting of 14 december 2002 for details about 
the battery part.
- Compile your DSDT with Intel's ASL compiler into a c source code file 
and copy it to kernel-src-dir/drivers/acpi/tables/acpi_dsdt.c.
- [Don't know by heart if this is needed with current acpi patches] 
Apply a patch to your kernel that makes it use your DSDT.
- Compile your kernel once again.
- Boot it...

I'm sorry that I couldn't write it in more detail, but I my Evo N160 is 
not running at the moment and I'm busy... I hope you'll find out how to 
use the information I could give you by now.

Some links that could help you, especially for finding Intel's ASL 
compiler and patching your kernel:

http://www.cpqlinux.com/acpi-howto.html
http://dude.noc.clara.net/~faye/compaq2701ea/

Kind regards
Heiko



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