An extra datapoint: I have had this problem for months. If I don't take action to shut down processes etc TP410s running Kubuntu 12.04 will overheat and shutdown.
1.. Have made it less severe by setting power management to "Balanced" in the bios. But still happens more than daily. 2. Happens more when I have an external monitor connected. Can cool things down by executing "disper -e" which disables the external monitor. 3. I kept my original Wz disk in case I needed to run diagnostics. Put it in today, installed TPFanControl and loaded the machine. TPFanControl offers 3 types of fan control: 'bios', 'smart' and 'manual'. Under load, if I set fan control to 'bios', machine will overheat and fan speed does not move (sits around 3-4000). But if I set fan control to 'smart' when the temp went over 90C, fan increased to over 7000rpm and machine cooled to ~60C. It would then cycle between 60-90C, with fan going up and down. At 7000rpm I can hear it. Many people have found a fan replacement helps. I wonder if the faulty fans are missing a control signal? And I wonder if TPFanControl manages it by a workaround in the Wz driver? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1009731 Title: Since 12.04, CPU is overheating and powering off spontaneously under high computation load To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thinkfan/+bug/1009731/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
