On Thu, 2011-11-03 at 10:25 -0400, Lars Noodén wrote: > On 11/03/2011 03:49 PM, Guenter Roeck wrote: > > On Thu, Nov 03, 2011 at 04:29:49AM -0400, Lars Noodén wrote: > >> On 11/03/2011 04:03 AM, Guenter Roeck wrote: > >>> From LKML: > >>> > >>> On Wed, Nov 02, 2011 at 05:42:39AM -0400, Lars Noodén wrote: > >>>> There seem to be two problems here, one is that the hardware is > >>>> getting WAY too hot, another is that the fan is not turning on when > >>>> the hardware gets too hot. > >>>> > >>>> $ uname -a Linux xubuntu 3.1.0-999-generic #201110270406 SMP Thu > >>>> Oct 27 08:07:41 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux > >>>> > >>>> I've reported the problem to Ubuntu > >>>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/881593 and the > >>>> suggestion there was to report it upstream. > >>>> > >>>> On the notebook computer, parts become very hot to the touch while > >>>> running Ubuntu, but the fan does not run even after it gets hot. > >>>> When I boot back to OS X, the fan kicks in and runs until the > >>>> computer returns to being cool to the touch. Similar for the > >>>> desktop, though I must follow the temperature with > >>>> /usr/bin/sensors. > >>>> > >>>> The notebook is a MacBookPro8,2 and the desktop is a Macmini3,1 > >>>> > >>>> What metrics do I need to collect to help fix the problem? I've > >>>> already reported the problem to Ubuntu[2] and the recommendation > >>>> was to try reporting upstream. > >>>> > >>>> Please CC me in the replies. /Lars > >>>> > >>>> [1] http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/current/ > >>>> > >>>> [2] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/881593 > >>> > >>> I see applesmc: : read arg fail in the dmesg log. No idea what that > >>> means. Maybe the driver maintainer or someone else on the lm-sensors > >>> mailing list can help. > >>> > >>> Not sure I understand your comment about having to follow the output > >>> of the sensors command. Can you clarify ? > >> > >> That's to track the temperature manually. > >> > >>> Also, do you get any output from the sensors command on the notebook? > >>> Thanks, Guenter > >> > >> Yes. It claims to have 24 temperature sensors. > >> > > Does it report any fans ? If it does, can you try setting the fan speed ? > > The one machine reports one fan and the other two fans. I haven't found > a way to set the fan speed manually. The output from sensors > is > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/881593/comments/44 > and here > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/881593/comments/47 > Do the fans actually turn, or is the output bogus ? You should be able to set the fan speed by writing into the fanX_input and/or fanX_output sysfs attributes. You find those in /sys/class/hwmon/hwmon0/device (assuming there is only one hwmon device). Thanks, Guenter _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
