Bug 538501

Summary:	Resume from suspend leaves fan running
Product:	[Fedora] Fedora	Reporter:	Need Real Name <lsof>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED DUPLICATE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	12	CC:	dougsland, gansalmon, itamar, james.leddy, kernel-maint, lsof
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2010-01-06 17:38:53 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Need Real Name 2009-11-18 17:37:48 UTC

If I resume from suspend, the fan runs constantly. There is no disk or cpu activity to cause this. The laptop is running on battery.

If I plug in the power cable and unplug it again the fan stops (back to normal).

Comment 1 Need Real Name 2009-11-19 19:29:19 UTC

I think the acpi information is wrong:

# cat /proc/acpi/fan/*/state
status:                  off
status:                  off
status:                  off
status:                  off
status:                  off
status:                  off
status:                  off
status:                  off
status:                  off
status:                  off
status:                  off
status:                  off
status:                  off

Comment 2 Need Real Name 2009-11-20 21:35:02 UTC

This seems to do it:

for i in /proc/acpi/fan/FAN*/state; do echo 3 > $i; done

Not sure what 3 means though.

Comment 3 Need Real Name 2009-11-21 18:58:41 UTC

Sorry, that's wrong. This works:

for i in /proc/acpi/fan/FAN*/state; do echo 0 > $i; done
for i in /proc/acpi/fan/FAN*/state; do echo 3 > $i; done

Comment 4 James M. Leddy 2010-01-06 17:38:53 UTC


*** This bug has been marked as a duplicate of bug 243008 ***