ACPI support for Toshiba Satellite Pro L770-116 Update

ACPI support for Toshiba Satellite Pro L770-116 Update

[Thomas Mitterfellner]

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Hello!

Azael Avalos looked into this issue and wrote a patch for the 
toshiba_acpi module (TOS1900 device support patch) using information 
from my DSDT table. I'm running a 2.6.39 kernel now using the updated 
module. When I press an Fn-Fx combination, I get some kernel error messages.

Azael advised me to report on that issue here again. I am going to 
attach the updated source code and the dmesg output showing the kernel 
messages.

I'd really appreciate your help, kind regards,

Thomas

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Re: ACPI support for Toshiba Satellite Pro L770-116 Update

[Azael Avalos]

Hi

Basically, the following errors appear everytime an Fn-FX combo is made

ACPI Error: Result stack is empty! State=ffff8801eb0a7800 (20101013/dswstate-98)
ACPI Exception: AE_AML_NO_RETURN_VALUE, Missing or null operand
(20101013/dsutils-646)
ACPI Exception: AE_AML_NO_RETURN_VALUE, While creating Arg 0
(20101013/dsutils-763)
ACPI Error: Method parse/execution failed [\_SB_.VALZ.GETE] (Node
ffff880225d76420), AE_AML_NO_RETURN_VALUE (20101013/psparse-537)
ACPI Error: Method parse/execution failed [\_SB_.VALZ.INFO] (Node
ffff880225d763f8), AE_AML_NO_RETURN_VALUE (20101013/psparse-537)


I´m not quite sure if this is a kernel or BIOS bug (or both).

As far as I understand, the method is queried but nothing is returned...

Or maybe I´m misunderstanding something.


Saludos
Azael Avalos


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Re: ACPI support for Toshiba Satellite Pro L770-116 Update

[Thomas Mitterfellner]

Hello!

Please forgive me for asking again for your help adding ACPI support for 
the Toshiba Satellite Pro L770-116 laptop to the linux kernel.

Unfortunately, I do not know how I can help developers on this other 
than providing the ACPI tables of this laptop.

I uploaded the ACPI tables here:

http://www.mitterfellner.at/files/acpitables.tar.bz2

(Content: APIC.dat DSDT.dat ECDT.dat FACP.dat FACS.dat HPET.dat MCFG.dat 
RSDP.dat SLIC.dat SSDT1.dat SSDT2.dat XSDT.dat)

I'd be very glad if someone could write a patch which enables the Fn-Fx 
functionality for changing the display brightness and for cycling 
through the LCD/VGA output modes. If you need any further information, I 
will of course try to provide it.

Thank you very much for your efforts,

Thomas Mitterfellner