Launchpad has imported 2 comments from the remote bug at https://bugzilla.kernel.org/show_bug.cgi?id=43011.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2012-03-29T22:08:34+00:00 nevermaker wrote: Created attachment 72744 output of dmidecode on my machine. My MacBook Air gets quite hot to the touch during minor usage (i.e. machine sitting untouched with browser and terminals open). The fan should really be starting up before the machine becomes uncomfortable to touch, but for some reason the fan is not triggered. For comparison against the older kernel version, I monitored the temperatures using GKrellM: Kernel version 3.2: - CPU temperatures start at around 50 C, and rise to 60 under load. - The fan does not kick in until high load raises the temperature. - Fan is able to cool the machine back down to 60, and then the fan shuts down. Kernel version 3.3: - CPU temperatures climb QUICKLY until 75 while the machine is completely idle. - Fan kicks in around 75 and cools the cpu down to 70 or so. - The temps don't decrease below 70ish, so the fan never comes down from high speed. - Under minor usage (browser, terminal, and gkrellm) cpu temps are rising faster than the fan can compensate. temp is above 80, but the fan is maxed out already. - This is evidence that the fan at its highest speed is not enough to cool the computer down. Kernel version from Ubuntu PPA, http://kernel.ubuntu.com/~kernel- ppa/mainline/v3.3-precise/ Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/964480/comments/6 ------------------------------------------------------------------------ On 2020-01-24T11:28:43+00:00 bp wrote: Looks forgotten, reopen if still of interest. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/964480/comments/9 ** Changed in: linux Status: Confirmed => Expired -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/964480 Title: MacBook Air 4,1 gets very hot before fan starts To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/964480/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
