Fan runs constantly with kernel 3.2.0-36 and higher

Bug #1124777 reported by Greg W.
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
Unity
Expired
Undecided
Unassigned
unity (Ubuntu)
Expired
Undecided
Unassigned

Bug Description

Using ubuntu 12.04. Recently, I have started to notice that the fan on my laptop runs CONSTANTLY. This has never been an issue for me before (been using 12.04 since release). Investigating the issue, I have discovered that when running kernel 3.2.0-35 or lower, the fan runs only intermittently if at all. But when running 3.2.0-36 or 3.2.0-37 (the latest release today), the fan runs constantly, even for minimal computing tasks.

It appears that a power-regression has been introduced into the kernel. Any chance this is fixable so that 12.04 can run fan-free again?

Revision history for this message
Andrea Azzarone (azzar1) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. There have been many changes in Ubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on a currently supported Ubuntu version. When you test it and it is still an issue, kindly upload the updated logs by running apport-collect <bug #> and any other logs that are relevant for this particular issue.

Changed in unity:
status: New → Incomplete
Changed in unity (Ubuntu):
status: New → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for Unity because there has been no activity for 60 days.]

Changed in unity:
status: Incomplete → Expired
Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for unity (Ubuntu) because there has been no activity for 60 days.]

Changed in unity (Ubuntu):
status: Incomplete → Expired
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