DSDT bugs on Acer Aspire 3023 WLMi

Hi all

I've been trying to get the smart battery system going on my Acer Aspire 3023 WLMi notebook under kernel 2.6.12.2. As far as I'm aware the 3023 is a variant of (but basically very similar to) all the 3020 and 5020 notebooks. It is quite different to the 3000 / 5000 series.

I've tried the sbs-cm patch (took a punt, didn't work), and I've tried the instructions at ACPI4Linux.

I've managed to remove some of the bugs from the dsdt.dsl using the error and warning messages from the iasl compiler, but still these warnings remain, and I don't know how to get smart battery monitoring going. My most bug-free dsdt.dsl is posted at http://acpi.sourceforge.net/dsdt/view.php?id=451.

dmesg gives:
---------------------------
....
ACPI: Embedded Controller [EC0] (gpe 3)
ACPI-0405: *** Error: Handler for [EmbeddedControl] returned AE_TIME
ACPI-1138: *** Error: Method execution failed [\_SB_.PCI0.LPC0.EC0_.BAT0._STA] (Node f7eeb6e0), AE_TIME
ACPI-0158: *** Error: Method execution failed [\_SB_.PCI0.LPC0.EC0_.BAT0._STA] (Node f7eeb6e0), AE_TIME
...
ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3])
ACPI-0405: *** Error: Handler for [EmbeddedControl] returned AE_TIME
ACPI-1138: *** Error: Method execution failed [\_TZ_.TZS0._TMP] (Node f7ef2540), AE_TIME
ACPI: Thermal Zone [TZS0] (60 C)
ACPI-0405: *** Error: Handler for [EmbeddedControl] returned AE_TIME
ACPI-1138: *** Error: Method execution failed [\_TZ_.TZS1._TMP] (Node f7ef2440), AE_TIME
ACPI: Thermal Zone [TZS1] (47 C)
ACPI-0405: *** Error: Handler for [EmbeddedControl] returned AE_TIME
ACPI-1138: *** Error: Method execution failed [\_TZ_.TZSV._TMP] (Node f7ef2320), AE_TIME
ACPI: Thermal Zone [TZSV] (51 C)
............
ACPI wakeup devices:
LID0 SLPB OHC1 OHC2 EHCI P2P MODM
ACPI: (supports S0 S3 S4 S5)

-----------------------

[root@doris mdoube]# iasl -tc dsdt.dsl

Intel ACPI Component Architecture
ASL Optimizing Compiler version 20050902 [Sep 29 2005] Copyright (C) 2000 - 2005 Intel Corporation Supports ACPI Specification Revision 3.0

dsdt.dsl 743: Name (_WDG, Buffer (0x3C)
Warning 2097 - ^ Unknown reserved name (_WDG)

dsdt.dsl 762: Method (_WED, 1, NotSerialized) Warning 2085 - ^ Not all control paths return a value (_WED)

dsdt.dsl 762: Method (_WED, 1, NotSerialized)
Warning 2097 - Unknown reserved name ^ (_WED)

dsdt.dsl 3361: Release (MTIO)
Warning 2098 - Statement is unreachable ^

ASL Input: dsdt.dsl - 5692 lines, 200128 bytes, 2373 keywords AML Output: DSDT.aml - 22023 bytes 777 named objects 1596 executable opcodes

Compilation complete. 0 Errors, 4 Warnings, 0 Remarks, 824 Optimizations
--------------------------------

All suggestions are most welcome

Mike

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Thanks to Benjamin Larsson for the tip:

1) Leave the DSDT alone - it is buggy but battery monitoring can work anyway
2) Install a recent kernel, 2.6.13 and above apparently. I am using Fedora's 2.6.13-1.1526_FC4.i686 kernel
3) use kernel option ec_burst=1

Now battery monitoring works, and dmesg gives:
----------
ACPI: AC Adapter [ADP1] (on-line)
ACPI: Battery Slot [BAT0] (battery present)
ACPI: Power Button (FF) [PWRF]
ACPI: Lid Switch [LID0]
ACPI: Sleep Button (CM) [SLPB]
------------

Sweet as.

Thanks to whoever was responsible for making this work, your effort is much appreciated.

Mike

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This SF.Net email is sponsored by:
Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl