Hello! At the end of last week I brought my Laptop to my hardware dealer, because it smelt burnt suddenly at the beginning of last week---but without observing any impairment of functionality. My hardware dealer couldn't find anything, but said, that my fan activates too late. He observed activation not until 69°C; sometimes it starts up at 63°C or 65°C with me, but I wouldn't contradict completely, because his statement corresponds to the following output:
----------------------------------------------------------- [EMAIL PROTECTED]:~$cat /proc/acpi/thermal_zone/THRM/trip_points critical (S5): 101 C passive: 95 C: tc1=4 tc2=3 tsp=300 devices=0xcdfee760 active[0]: 70 C: devices=0xcdf213e0 ------------------------------------------------------------ So I tried to manipulate the trip_points following http://acpi.sourceforge.net/documentation/thermal.html: ------------------------------------------------------------- [EMAIL PROTECTED]:~#echo -n "101:0:90:60:0" > trip_points [EMAIL PROTECTED]:~$cat /proc/acpi/thermal_zone/THRM/trip_points critical (S5): 101 C passive: 90 C: tc1=4 tc2=3 tsp=300 devices=0xcdfee760 active[0]: 60 C: devices=0xcdf213e0 -------------------------------------------------------------- But nothing changes. Currently the CPU temperature is 65°C, but the fan is standing still. Then I checked, whether I got a buggy DSDT following http://forums.gentoo.org/viewtopic.php?t=122145 : ------------------------------------------------------------------- [EMAIL PROTECTED]:/tmp/DSDT#iasl -tc dsdt.dsl Intel ACPI Component Architecture ASL Optimizing Compiler / AML Disassembler version 20040715 [Aug 25 2004] Copyright (C) 2000 - 2004 Intel Corporation Supports ACPI Specification Revision 2.0c ASL Input: dsdt.dsl - 6419 lines, 189822 bytes, 1370 keywords AML Output: DSDT.aml - 19846 bytes 452 named objects 918 executable opcodes Compilation complete. 0 Errors, 0 Warnings, 0 Remarks, 428 Optimizations -------------------------------------------------------------------- Everything seems to be allright. System information: ------------------- - Laptop: IPC Power Note M 8375 - CPU: [EMAIL PROTECTED]:~$fgrep "model name" /proc/cpuinfo model name : mobile AMD Athlon(tm) XP 2200+ - Kernel: [EMAIL PROTECTED]:~$uname -rs Linux 2.6.8.1 - Distribution: Debian Woody/Sarge The output of dmesg -s40000 dmidecode acpidmp lspci -vv cat /proc/interrupts can be put on my home-webserver, if required. My questions: ------------- - are the default trip_points really too high? - how can I manipulate the trip_points lasting and effective? - is there a comprehensive description of ACPI in kernel 2.6 and information how to the user can use resp. manage these features (e.g. I still don't know, whether I need some tool to use PowerNow! or whether the kernel controls it itself)? Thanks for reading this long posting! Best regards, Christoph
