On Wed, 02 May 2012, r ll wrote: > most of time the fan is working well, but usually every night I close the laptop > let the Linux suspend; then resume on next morning, occasionally the laptop > could become very hot, usually above 90℃ for long time, if I compile something > or do some heavy work, it may go up over 128℃ then machine > automatically shutdown, > > # cat /sys/devices/platform/thinkpad_hwmon/temp1_input > 97000 > # cat /sys/devices/platform/thinkpad_hwmon/fan1_input > 65535 "-1" (reported as 65535) *is* the standard ThinkPad EC lingo for "not available". Getting this in the tachometer is really weird, but actually useful :p It is also the first time I've ever heard of this. Change your kernel to disable thinkpad-acpi fan control, i.e. make *sure* thinkpad_acpi is always loaded with fan_control=0, even at the first time it is loaded. You might need to mess with /etc/modprobe.d, and maybe even update your initramfs. Run it like that for a while, so that you can access whether the problem went away or not. Let's find out whether it is thinkpad-acpi or something else that is getting the EC pissed off :-) > I tried unload & reload the kernel module but it still doesn't work; > I tried manually set a speed level but it's still 65535, the machine > is still hot So, whatever it is, it makes the EC ignore fan control commands. Are you using the "fan" ACPI module? -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
