Am Sonntag, 22. Juni 2008 12:48 schrieb Michael Meskes: > On Sun, Jun 22, 2008 at 10:43:25AM +0200, Adolf Winterer wrote: > > The directory /sys/class/thermal does not exist. > > Which kernel do you run? Looks like a strange configuration here. > > > Look at the temperature! > > > > $ cat /proc/acpi/thermal_zone/THRM/temperature > > temperature: -73 C > > Yes, it reports a negative temperature. But this is reported by the > kernel. acpi only reads this information and displays it. The problem > doesn't seem to be in acpi, but in the kernel itself.
I did some more research regarding ACPI and found out that on both systems there is a flawed ACPI DSDT. Using acpidump I stored the DSDT into a file and disassembled it with iasl. When comiling the file back into a binary file I get one warning and two errors on both systems which look quite similar. # iasl -sa dsdt.dsl Intel ACPI Component Architecture ASL Optimizing Compiler version 20061109 [May 15 2007] Copyright (C) 2000 - 2006 Intel Corporation Supports ACPI Specification Revision 3.0a dsdt.dsl 378: Method (\_WAK, 1, NotSerialized) Warning 1079 - ^ Reserved method must return a value (_WAK) dsdt.dsl 419: Store (Local0, Local0) Error 4049 - ^ Method local variable is not initialized (Local0) dsdt.dsl 424: Store (Local0, Local0) Error 4049 - ^ Method local variable is not initialized (Local0) ASL Input: dsdt.dsl - 5129 lines, 163766 bytes, 1797 keywords Compilation complete. 2 Errors, 1 Warnings, 0 Remarks, 571 Optimizations I found a suggestion how to fix the warning, but did not find anything for the errors. The code looks like that: Scope (\_SI) { Method (_MSG, 1, NotSerialized) { Store (Local0, Local0) } Method (_SST, 1, NotSerialized) { Store (Local0, Local0) } } I do not understand a single word from it, so there is not a real chance to fix it myself. Some time ago I read about a DSDT fix that has been removed from the kernel, but I do not know if this is related to the problem we see here. > Michael -- "Man kann ein Problem nicht mit den gleichen Denkstrukturen lösen, die zu seiner Entstehung beigetragen haben." -- Albert Einstein -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]