Toshiba Dynabook S7 ACPI problems

Toshiba Dynabook S7 ACPI problems

[Jan Rychter]

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I have just tried running Linux w/ACPI-20030619 on a new Toshiba
Dynabook SS7/290LNKW. It's a Centrino-based laptop. There are a number
of problems:

1. Fan control via ACPI does not work. There is a fan entry, but I can
manipulate the fan only via the special Toshiba module.

2. Thermal management: trip points look rather bogus:

  critical (S5):           115 C
  passive:                 114 C: tc1=9 tc2=2 tsp=1800 devices=0xcff1d908 
  active[0]:               114 C: devices=0xcff22648 
  active[1]:               114 C: devices=0xcff22648 

... but it seems something inside the machine does turn on the fan, even
though it isn't Linux.

3. I get LID button events fine, but the power button doesn't seem to
generate any events, which seems strange. Also, I'm getting battery
events every couple of seconds, in spite of the battery being full -- is
this normal? Example: (this was taken over the course of about 15
seconds)

  button/lid LID 00000080 00000003
  button/lid LID 00000080 00000004
  battery BAT1 00000080 00000001
  ac_adapter ADP1 00000080 00000000
  processor CPU0 00000080 00000000
  ac_adapter ADP1 00000080 00000001
  processor CPU0 00000080 00000000
  battery BAT1 00000080 00000001
  battery BAT1 00000080 00000001


4. I don't know if this is ACPI's fault, but it seems all devices want to
sit on the same IRQ:

  ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 *11)
  ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 10 *11)
  ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 10 *11)
  ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 10 *11)
  ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 10 *11)
  ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 10 *11)
  ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 10 *11)
  ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 10 *11)

5. Intel Wireless card does not work (hey, Intel folks! what's up with
this?!) and of course the Pentium-M speedstepping is not supported yet
(sigh...)

Perhaps some of the above are notebook problems, not ACPI problems, but
I thought a report was valuable anyway. DSDT and dmesg provided on
request, please let me know if you'd like to see them.

--J.

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Re: Toshiba Dynabook S7 ACPI problems

[Chris Lawrence]

On Sun, 2003-07-13 at 13:58, Jan Rychter wrote:
> 4. I don't know if this is ACPI's fault, but it seems all devices want to
> sit on the same IRQ:
> 
>   ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 *11)
>   ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 10 *11)
>   ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 10 *11)
>   ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 10 *11)
>   ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 10 *11)
>   ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 10 *11)
>   ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 10 *11)
>   ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 10 *11)

This is common on systems that are (mostly) legacy-free like my Toshiba
laptop; the ACPI IRQ balancing code tries to avoid putting PCI
interrupts on lines that legacy ISA devices use.  If you modify
drivers/acpi/pci_link.c (look for the "penalty" table) you can make the
IRQ allocation saner (there probably ought to be a kernel argument to
adjust the penalty table, or at least something that will de-penalize
legacy system IRQs).


Chris
-- 
Chris Lawrence <cnlawren-otVW4P3Rl+RCuWAPc0MYQg@public.gmane.org>
Department of Physics and Astronomy, University of Mississippi


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