Patch for controlling fan speed - Revision history

Chazchaz101 at 00:08, 24 March 2008

2008-03-24T00:08:41Z

2008-03-24T00:07:48Z

change to previous note

2008-03-23T23:59:55Z

Note about the patch not being needed on 2.6.22-14

2006-11-13T21:58:27Z

‎for ibm-acpi 0.12a as found in kernels 2.6.14 and 2.6.17: spelling

2006-08-22T11:36:36Z

‎for ibm-acpi 0.12a as found in kernel 2.6.14 and 2.6.17

2006-08-22T11:36:22Z

‎for ibm-acpi 0.12a as found in kernel 2.6.14

2006-08-22T11:35:55Z

‎for ibm-acpi 0.12a as found in kernel 2.6.14

2006-08-22T11:32:14Z

‎The patch

2006-07-26T21:53:37Z

‎The patch: Moved to Code/

2006-01-20T19:25:29Z

Moved everything except patch to How to control fan speed

← Older revision		Revision as of 00:08, 24 March 2008
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	==Overview==		==Overview==

−	{{NOTE\|The patch is no longer necessary. After opening a root shell with '''$sudo -s''', you should be able to run al of these commands See [[How_to_control_fan_speed\|How to control fan speed]]}}	+	{{NOTE\|The patch is no longer necessary with kernel > 2.6.10. After opening a root shell with '''$sudo -s''', you should be able to run al of these commands. See: [[How_to_control_fan_speed\|How to control fan speed]]}}

← Older revision		Revision as of 00:07, 24 March 2008
Line 1:		Line 1:
	==Overview==		==Overview==

−	{{NOTE\|~~It appears that the~~ patch is no longer necessary. After opening a root shell with '''$sudo -s''', ~~I was~~ able to run these commands ~~without problems with Ubuntu 6.10 default kernel (2.6.22-14-generic).~~}}	+	{{NOTE\|The patch is no longer necessary. After opening a root shell with '''$sudo -s''', you should be able to run al of these commands See [[How_to_control_fan_speed\|How to control fan speed]]}}

← Older revision		Revision as of 23:59, 23 March 2008
Line 1:		Line 1:
	==Overview==		==Overview==
		+
		+	{{NOTE\|It appears that the patch is no longer necessary. After opening a root shell with '''$sudo -s''', I was able to run these commands without problems with Ubuntu 6.10 default kernel (2.6.22-14-generic).}}
		+

	This patch extends the [[ibm-acpi]] Linux kernel module to control fan speed. It can be used to reduce [[Problem with fan noise\|fan noise]] (both speed and pulsing) and to decrease fan power consumption.		This patch extends the [[ibm-acpi]] Linux kernel module to control fan speed. It can be used to reduce [[Problem with fan noise\|fan noise]] (both speed and pulsing) and to decrease fan power consumption.

@@ Line 46: / Line 46: @@
 {{CodeRef|ibm-acpi-0.12a-2.6.17-fan.patch}}
-{{NOTE|In order to patch the ibm_acpi.c file you have tu issue the following command: <code>patch -p0 -l < fanpatch</code>. The '-l' option is important because if the patch pasted here doesn't have any tabs any more. Another advice: Always try to patch the files first before really patching it. That is done by adding --dry-run to the command.}}
+{{NOTE|In order to patch the ibm_acpi.c file you have to issue the following command: <code>patch -p0 -l < fanpatch</code>. The '-l' option is important because the patch pasted here doesn't have any tabs any more. Another piece of advice: Always try to patch the files first before really patching them. That is done by adding --dry-run to the command.}}
 ===Ideas for improvement===

@@ Line 38: / Line 38: @@
 This also includes a minor fix (rename of <tt>device_add</tt>) to make [[ibm-acpi]] 0.11 compile on kernel 2.6.13.
-===for ibm-acpi 0.12a as found in kernel 2.6.14 and 2.6.17===
+===for ibm-acpi 0.12a as found in kernels 2.6.14 and 2.6.17===
 A slightly modified version which also keeps the lines in the format expected by the gkrellm plugin.

@@ Line 44: / Line 44: @@
 {{CodeRef|ibm-acpi-0.12a-2.6.14-fan.patch}}
-(modified for kernel 2.6.17: {{CodeRef|ibm-acpi-0.12a-2.6.17-fan.patch}})
+(updated for kernel 2.6.17: {{CodeRef|ibm-acpi-0.12a-2.6.17-fan.patch}})
 {{NOTE|In order to patch the ibm_acpi.c file you have tu issue the following command: <code>patch -p0 -l < fanpatch</code>. The '-l' option is important because if the patch pasted here doesn't have any tabs any more. Another advice: Always try to patch the files first before really patching it. That is done by adding --dry-run to the command.}}

← Older revision		Revision as of 11:32, 22 August 2006
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	{{CodeRef\|ibm-acpi-0.12a-2.6.14-fan.patch}}		{{CodeRef\|ibm-acpi-0.12a-2.6.14-fan.patch}}
		+
		+	(modified for kernel 2.6.17: {{CodeRef\|ibm-acpi-0.12a-2.6.17-fan.patch}})

	{{NOTE\|In order to patch the ibm_acpi.c file you have tu issue the following command: <code>patch -p0 -l < fanpatch</code>. The '-l' option is important because if the patch pasted here doesn't have any tabs any more. Another advice: Always try to patch the files first before really patching it. That is done by adding --dry-run to the command.}}		{{NOTE\|In order to patch the ibm_acpi.c file you have tu issue the following command: <code>patch -p0 -l < fanpatch</code>. The '-l' option is important because if the patch pasted here doesn't have any tabs any more. Another advice: Always try to patch the files first before really patching it. That is done by adding --dry-run to the command.}}

@@ Line 227: / Line 227: @@
 * When fan speed is controlled from userspace (e.g., by the [[ACPI fan control script#Variable speed control scripts|ACPI fan control scripts]]), the userspace component may die (for whatever reason) leaving the fan at a low speed, potentially leading to damage. We can add a watchdog to the kernel component, which resets the fan to Embedded Controller control (<tt>leve: auto</tt>) if {{path|/proc/acpi/ibm/fan}} was not written to for ''N'' seconds.
-==Controlling the fan without this patch==
+==Alternative methods and hardware specs==
-If you have the [[ibm-acpi]] module loaded with <tt>experimental=1</tt>, you can control the fan without patching the kernel by directly writing to the relevant embedded controller register using {{path|/proc/acpi/ibm/ecdump}}.
+See [[How to control fan speed]].
-For example:
+==Supported models==
 [[Category:Patches]]