Bug 12055 - FAN ALWAYS ACTIVE
Summary: FAN ALWAYS ACTIVE
Status: REJECTED WILL_NOT_FIX
Alias: None
Product: ACPI
Classification: Unclassified
Component: Power-Fan (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: ykzhao
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2008-11-17 13:20 UTC by Claudio Melis
Modified: 2008-11-18 18:37 UTC (History)
1 user (show)

See Also:
Kernel Version: 2.6.27.6
Subsystem:
Regression: ---
Bisected commit-id:

Attachments
dmesg output (30.58 KB, text/plain)
2008-11-17 13:21 UTC, Claudio Melis 		Details
acpi dump attachment (166.19 KB, text/plain)
2008-11-18 12:09 UTC, Claudio Melis 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Claudio Melis 2008-11-17 13:20:33 UTC 
Latest working kernel version: not know
Earliest failing kernel version: 2.6.27.6
Distribution: sabayon
Hardware Environment: Intel(R) Core(TM)2 CPU         T5600  @ 1.83GHz
Software Environment: kde desktop
Problem Description: fan is always on. no files in /proc/acpi/fan

Steps to reproduce:
Comment 1 Claudio Melis 2008-11-17 13:21:06 UTC 
Created attachment 18891 [details]
dmesg  output
Comment 2 ykzhao 2008-11-17 16:33:42 UTC 
Will you please attach the output of acpidump?
Thanks.
Comment 3 Claudio Melis 2008-11-18 12:09:56 UTC 
Created attachment 18917 [details]
acpi dump attachment
Comment 4 Claudio Melis 2008-11-18 12:10:23 UTC 
attachment added. thank u.
Comment 5 ykzhao 2008-11-18 18:22:35 UTC 
Hi, Claudio
    thanks for the info.
    From the acpidump it seems that there is no ACPI fan device.  At the same time there exists an ACPI device with the HID of "ATK0100".  But the fan device can't be controlled by the asus platform driver.Maybe the fan device is controlled by BIOS instead of Linux ACPI.  
    As the FAN device is not controlled by ACPI, linux acpi has nothing to do. So the bug will be rejected.
    Thanks.
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