Mute button - Revision history

Mtu: added ubuntu instructions

2013-01-13T11:57:47Z

added ubuntu instructions

Junghans at 21:18, 14 December 2012

2012-12-14T21:18:55Z

Junghans at 21:15, 14 December 2012

2012-12-14T21:15:00Z

Dveeden at 10:08, 23 May 2011

2011-05-23T10:08:33Z

Dveeden at 10:07, 23 May 2011

2011-05-23T10:07:45Z

Newhren: â†Created page with 'Starting from Linux version 2.6.23, kernel passes OSI string "`!Linux`" to ACPI (instead of "`Linux`"). There is a number of reasons for that (see details in...'

2009-06-11T18:23:04Z

â†Created page with 'Starting from Linux version 2.6.23, kernel passes OSI string "<tt>!Linux</tt>" to ACPI (instead of "<tt>Linux</tt>"). There is a number of reasons for that (see details in...'

New page

Starting from Linux version 2.6.23, kernel passes OSI string "<tt>!Linux</tt>" to ACPI (instead of "<tt>Linux</tt>"). There is a number of reasons for that (see details in <tt>drivers/acpi/osl.c</tt> in the kernel source). But IBM/Lenovo has a consistently good record of supporting Linux, so this trick is not necessary for Thinkpads. Moreover, OSI string "<tt>Linux</tt>" is [http://linux.derkeiler.com/Mailing-Lists/Kernel/2008-01/msg04543.html needed] to make the '''Mute''' button work. For Thinkpads R61, T61 and X61, there are already hooks for that in <tt>drivers/acpi/blacklist.c</tt>. For most other models, you need to pass the string <tt>acpi_osi="Linux"</tt> to the kernel as a boot parameter.

==Needed for models==
{{T400}}, {{X200}}, {{X301}}

← Older revision		Revision as of 21:18, 14 December 2012
Line 6:		Line 6:
	==Microphone Mute Button==		==Microphone Mute Button==
	see [[Microphone Mute Button]]		see [[Microphone Mute Button]]
−
−	~~==Needed for models==~~
−	~~{{T410}}, {{T410s}}~~

@@ Line 5: / Line 5: @@
 ==Microphone Mute Button==
-The Microphone Mute Button on the T410 and T410s does not work on Ubuntu 10.10 and Ubuntu 11.04.
+see [[Microphone Mute Button]]
 ==Needed for models==
 {{T410}}, {{T410s}}

← Older revision		Revision as of 10:08, 23 May 2011
Line 8:		Line 8:

	https://bugs.launchpad.net/ubuntu/+source/acpi-support/+bug/728310		https://bugs.launchpad.net/ubuntu/+source/acpi-support/+bug/728310
		+
		+	==Needed for models==
		+	{{T410}}, {{T410s}}

← Older revision		Revision as of 10:07, 23 May 2011
Line 3:		Line 3:
	==Needed for models==		==Needed for models==
	{{T400}}, {{X200}}, {{X301}}		{{T400}}, {{X200}}, {{X301}}
		+
		+	==Microphone Mute Button==
		+	The Microphone Mute Button on the T410 and T410s does not work on Ubuntu 10.10 and Ubuntu 11.04.
		+
		+	https://bugs.launchpad.net/ubuntu/+source/acpi-support/+bug/728310

@@ Line 1: / Line 1: @@
-Starting from Linux version 2.6.23, kernel passes OSI string "<tt>!Linux</tt>" to ACPI (instead of "<tt>Linux</tt>"). There is a number of reasons for that (see details in <tt>drivers/acpi/osl.c</tt> in the kernel source). But IBM/Lenovo has a consistently good record of supporting Linux, so this trick is not necessary for Thinkpads. Moreover, OSI string "<tt>Linux</tt>" is [http://linux.derkeiler.com/Mailing-Lists/Kernel/2008-01/msg04543.html needed] to make the '''Mute''' button work. For Thinkpads R61, T61 and X61, there are already hooks for that in <tt>drivers/acpi/blacklist.c</tt>. For most other models, you need to pass the string <tt>acpi_osi="Linux"</tt> to the kernel as a boot parameter.
+:'''''Note:''''' This article refers to the plaback mute button next to the volume control buttons. For the Microphone Mute Button present in some Thinkpad models, see [[Microphone Mute Button]].
 ==Needed for models==
 {{T400}}, {{X200}}, {{X301}}