I have the same problem: Laptop: IBM T41p Ubuntu: Dapper works perfectly/Edgy gives Critical Temperature Reached messages in kern.log and halt with T ~= 94 C Upgrade procedure from Dapper: /home kept, format and install of / Good point: acpi kicks in and protect my hardware! Bad point: CPU freq + throttling would be better.
Here are some infos about the system: [EMAIL PROTECTED]:~ $ cat /proc/acpi/thermal_zone/THM0/trip_points critical (S5): 93 C passive: 89 C: tc1=8 tc2=5 tsp=600 devices=0xdff4d338 [EMAIL PROTECTED]:~ $ cat /proc/acpi/thermal_zone/THM0/polling_frequency <polling disabled> - This is strange, I echo 2 into it and got: # echo 2 > /proc/acpi/thermal_zone/THM0/polling_frequency # cat /proc/acpi/thermal_zone/THM0/polling_frequency polling frequency: 2 seconds # cat /proc/acpi/processor/CPU/info processor id: 0 acpi id: 1 bus mastering control: yes power management: yes throttling control: yes limit interface: yes If I do a dmesg | grep -i acpi I have the following strange stuff: ACPI: Looking for DSDT ... not found! So I suppose that the DSDT shipped with Edgy is broken but was ok with Dapper. Where is it possible to get the Dapper DSDT? I could test it and see if it is effectively the problem. I am attaching the dmesg I have. My kernel etc... are all out of the box from Edgy. ** Attachment added: "Full dmesg T41p Edgy" http://librarian.launchpad.net/5018031/dmesg-t41p-edgy.txt -- laptop overheats when performing CPU intensive tasks. https://launchpad.net/bugs/22336 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
