Bug 46461 - fan is not detected
Summary: fan is not detected
Status: CLOSED INSUFFICIENT_DATA
Alias: None
Product: ACPI
Classification: Unclassified
Component: Power-Fan (show other bugs)
Hardware: x86-64 Linux
: P1 high
Assignee: Lan Tianyu
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-08-27 03:57 UTC by ahmad.salwe
Modified: 2013-08-07 01:28 UTC (History)
3 users (show)

See Also:
Kernel Version: 3.2.0.29-amd64
Subsystem:
Regression: No
Bisected commit-id:

Attachments
dmi decode output (14.77 KB, text/plain)
2012-08-27 03:58 UTC, ahmad.salwe 		Details
cooling devices status (2.00 KB, text/plain)
2012-08-27 05:37 UTC, ahmad.salwe 		Details
acpidump output (208.15 KB, text/plain)
2012-08-27 05:43 UTC, ahmad.salwe 		Details
Add an attachment (proposed patch, testcase, etc.)

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.
Note You need to log in before you can comment on or make changes to this bug.