Bug 46461

Summary:	fan is not detected
Product:	ACPI	Reporter:	ahmad.salwe
Component:	Power-Fan	Assignee:	Lan Tianyu (tianyu.lan)
Status:	CLOSED INSUFFICIENT_DATA
Severity:	high	CC:	alan, rui.zhang, tianyu.lan
Priority:	P1
Hardware:	x86-64
OS:	Linux
Kernel Version:	3.2.0.29-amd64	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	dmi decode output cooling devices status acpidump output

Description ahmad.salwe 2012-08-27 03:57:08 UTC

acpi can not detect my cooling devices and I cannot see /proc/acpi/fan directory, however it was working fine with windows 7 home

Appreciate your help.


********************************************
[    0.945472] ACPI: Fan [FAN0] (off)
[    0.945495] ACPI: Fan [FAN1] (off)
********************************************

Comment 1 ahmad.salwe 2012-08-27 03:58:51 UTC

Created attachment 78511 [details]
dmi decode output

Comment 2 ahmad.salwe 2012-08-27 05:37:13 UTC

Created attachment 78521 [details]
cooling devices status

Comment 3 ahmad.salwe 2012-08-27 05:43:54 UTC

Created attachment 78531 [details]
acpidump output

Comment 4 ahmad.salwe 2012-08-27 05:50:39 UTC

cooling devices state is changed back to 0 after restart.

Comment 5 Zhang Rui 2012-11-28 15:07:20 UTC

please attach the output of "grep . /sys/class/thermal/*/*"

(In reply to comment #4)
> cooling devices state is changed back to 0 after restart.

this does not seem to be wrong. so what do you expect to happen?
can "echo 0/1 > /sys/class/thermal/cooling_deviceX/cur_state" change the fan state?

Comment 6 Zhang Rui 2012-12-11 01:46:45 UTC

ping...

Comment 7 ahmad.salwe 2012-12-11 08:12:50 UTC

yes it can change the state but it does not reflect to the operations

Comment 8 Lan Tianyu 2013-06-24 01:40:57 UTC

Hi:
   Does this issue take place in the  latest kernel v3.10-rc7? 

(In reply to comment #7)
> yes it can change the state but it does not reflect to the operations
What does this mean? The "cooling_deviceX/cur_state" doesn't show correct
state?

Comment 9 Lan Tianyu 2013-08-05 01:19:21 UTC

ping ...

Comment 10 Lan Tianyu 2013-08-07 01:28:27 UTC

Since no response for long time, close this bug as insufficient data.