Incorrect Temperature Reporting Causes Hard Shutdown
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
Anything even remotely CPU intensive causes the reporting of CPU temperature to increase rapidly thus a hard-shutdown occurs. Running `apt-get upgrade`, `apt-get install` or even just scrolling the visible WLAN list will cause this.
I am retrieving the temperature via `acpi -t` in a shell. Running an apt-get upgrade and monitoring the CPU temperature via acpi shows it increasing to critical point (90 C +), from an idle temperature of between 48 and 51 C.
I have added the following modules to /etc/modules as suggested on the Ubuntu Forums (http://
* battery
* ac
* thermal
* processor
* acpi-cpufreq
* cpufreq-userspace
I also tried adding trip points to /etc/rc.local, but this didn't help either:
* echo -n “90:80:60:75:70:65″ > /proc/acpi/
* echo 2 > /proc/acpi/
_Additional Information_
1) Description: Ubuntu 8.10, Release: 8.10
2) Not applicable, as I am not sure what software package is causing this. Assuming ACPI is the culprit: 1.1-1ubuntu1.
3) I expect the computer not to be shutdown
4) A forced shutdown, or in the worst case a 'hard shutdown': the computer doesn't turn off gracefully but instantly.
_Hardware Information_
IBM Thinkpad X31
768MB RAM
60GB HDD
ATI Radeon Mobility M6 using radeonfb
I've managed to trigger a hard shutdown by viewing an image & AJAX intensive website like Google Analytics. This is a critical bug and is more than likely damaging my hardware.