This appears to affect me on an X220 i7, 11.10 Oneiric. This bug seems to relate to the OS and not firmware for me. I was on 11.04 previously and did not have a problem. During high-load the fan would spin to a high RPM (don't know how fast since I never had reason to check it but certainly faster than on 11.10).
After upgrading to 11.10 I almost instantly found that the laptop becomes too hot to hold during high-load. Agree with others finding that "auto" mode will only run the fan at around ~4500rpm whereas "disengaged" will go to ~6300rpm. 4500rpm will allow the CPU to reach ~99/100C. 6300rpm will keep it < 80C while running the same workload. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/751689 Title: ThinkPads overheat due to slow fans when on 'auto' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
