Greetings from Nairobi, Kenya, I recently swapped a failing 160GB hard drive on my Lenovo Thinkpad T61 with a 1TB disk then installed Debian Wheezy on the entire GPT disk with LVM over LUKS. However, whenever I tried copying a 130GB gzip backup from an external fuseblk USB drive to my new home, the laptop overheated and shutdown somewhere around the 20-30% mark. The relevant lines from /var/log/syslog were as follows:
Aug 10 23:05:57 curiosity kernel: [ 3601.433022] thinkpad_acpi: THERMAL EMERGENCY: a sensor reports something is extremely hot! Aug 10 23:05:57 curiosity kernel: [ 3601.434875] thinkpad_acpi: temperatures (Celsius): 87 42 33 62 50 N/A 34 N/A 40 46 56 N/A N/A N/A N/A N/A Aug 10 23:05:57 curiosity kernel: [ 3601.435288] Critical temperature reached (103 C), shutting down. Aug 10 23:05:57 curiosity shutdown[4494]: shutting down for system halt After a lot of googling, I decided to tear down the laptop, expose the cooling fan and give it a good vacuum job to get rid of any dust that might have accumulated and was possibly interfering with the CPU cooling. I assembled all the pieces, rebooted and re-run the rsync copy command which this time ran to completion without overheating. Next I decided to decompress the gzip archive but once again I found myself back to square one with overheating issues after an hour or so of decompressing. The relevant lines from /var/log/syslog.1 are as follows: Aug 12 23:59:14 curiosity kernel: [15927.185123] Critical temperature reached (103 C), shutting down. Aug 12 23:59:14 curiosity kernel: [15927.258218] thinkpad_acpi: THERMAL EMERGENCY: a sensor reports something is extremely hot! Aug 12 23:59:14 curiosity shutdown[6882]: shutting down for system halt Aug 12 23:59:14 curiosity kernel: [15927.261302] thinkpad_acpi: temperatures (Celsius): 88 47 38 62 50 N/A 33 N/A 44 51 58 N/A N/A N/A N/A N/A Aug 12 23:59:16 curiosity init: Switching to runlevel: 0 It is worth noting that this is the very first time I've encountered such a problem, coming immediately after upgrading the hard disk from 160GB (MBR, LVM over LUKS) to 1TB (GPT, LVM over LUKS) and Debian distribution from Squeeze to Wheezy. I also tried setting the fan speed to maximum "level disengaged" or "level 7" but I got the following error: root@curiosity:~# echo "level disengaged" > /proc/acpi/ibm/fan -bash: echo: write error: Invalid argument root@curiosity:~# echo "level 7" > /proc/acpi/ibm/fan -bash: echo: write error: Invalid argument The output of /proc/acpi/ibm/fan, /proc/acpi/ibm/thermal and acpi -V, a few minutes just before the laptop shutdown was as follows: root@curiosity:~# cat /proc/acpi/ibm/fan status: enabled speed: 3068 level: auto root@curiosity:~# cat /proc/acpi/ibm/thermal temperatures: 90 46 38 63 50 -128 33 -128 44 51 59 -128 -128 -128 -128 -128 root@curiosity:~# acpi -V Battery 0: Full, 100% Battery 0: design capacity 4492 mAh, last full capacity 3798 mAh = 84% Adapter 0: on-line Thermal 0: ok, 94.0 degrees C Thermal 0: trip point 0 switches to mode critical at temperature 100.0 degrees C Thermal 0: trip point 1 switches to mode passive at temperature 95.5 degrees C Thermal 1: ok, 90.0 degrees C Thermal 1: trip point 0 switches to mode critical at temperature 127.0 degrees C Cooling 0: LCD 8 of 15 Cooling 1: Processor 0 of 10 Cooling 2: Processor 0 of 10 Other outputs that might be of interest are: root@curiosity:~# uname -a Linux curiosity 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1 x86_64 GNU/Linux root@curiosity:~# cat /proc/cpuinfo | grep model model : 23 model name : Intel(R) Core(TM)2 Duo CPU T8300 @ 2.40GHz model : 23 model name : Intel(R) Core(TM)2 Duo CPU T8300 @ 2.40GHz Please give me hints on how to get this old laptop back to full functionality without the overheating problem. -- Thanks & Regards, Alphonse Ogulla Nairobi, Kenya -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAAjnQCZkwok=NvUsPWZV0f66qrtaO43pAc0Ruut--TO3==x...@mail.gmail.com
