Problem with Compaq Presario 27xx

quoted

FROM: Troy SchultzDATE: 06/16/2002 05:23:35SUBJECT:  RE [ACPI] Problem with Compaq Presario 27XX The Compaq 2700 series notebooks have buggy DSDTs and need to have

several changes made.  Even with these changes there still seems to be a
small issue with battery detection if powered using AC.

quoted

Send me a copy of your /proc/acpi/dsdt file and I can compare it to the

ones I have archived.  I have fixed DSDTs for several 2700 series
notebooks and would be happy to provide you with a "fixed" version.

quoted

I am running a Compaq Presario 2710CA with kernel 2.4.18 and ACPI

20020404.  I have not tried the newer versions since my system is
working quite well and I am waiting for a version now that fully handles
S3 suspend.  However it looks like this may not be possible with the 2.4
kernel series without significant other changes.

quoted

- Troy

Where do I go to find out what fixes I need in my dsdt table?
I have it posted at http://www.cpqlinux.com/Pres2701_dsdt.tgz if anyone wants to look at it.

Here's my current status:

Compaq Presario 2701US
kernel 2.4.18 + acpi-20020726 + kacpid

I can proceed through the following steps just fine

cat /proc/acpi/dsdt > dsdt.dat
cat dsdt.dat | acpidisasm > dsdt.asl    (intel's pmtools)

When the above command finishes my dsdt.asl contains the hex indicators on the left hand side.  Is this correct?:

00000000: OpRegion DBG_ (\DBG_)
00000006:   SystemIO
00000007:   0x80
00000009:   0x01
0000000b: Field
0000000e:   DBG_ (00000000)
00000012:   AccessType: ByteAcc; LockRule: NoLock; UpdateRule: Preserve
00000013:   NamedField DEBG
00000018: Scope _PR_ (\_PR_)
00000020:   Processor CPU0 (\_PR_.CPU0)
00000028:     0x00
00000029:     0x00001010
0000002d:     0x06
0000002e:     Method _CST (\_PR_.CPU0._CST)
...

I can remove off the hex portion with the command

cat old | sed -e 's,^..........,,' > new

but I'm not sure if that's what I really need to do.


What fix do I need so that I can proceed to repack my dsdt table?


Sincerely,
Richard Black
http://www.cpqlinux.com
http://www.geocities.com/rlcomp_1999
http://www.compaq.com/linux

Reference sites
http://www.geocrawler.com/archives/3/17428/2002/6/100/8962779/
http://dude.noc.clara.net/~faye/
kacpid site: http://www.pps.jussieu.fr/~jch/software/presario/
the kacpid patch causes the kernel to periodically check for lost ACPI interrupts.


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