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	<title>Jack-init - Revision history</title>
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	<updated>2026-09-05T19:05:11Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.46.0</generator>
	<entry>
		<id>https://rivendellaudio.wiki/index.php?title=Jack-init&amp;diff=29251&amp;oldid=prev</id>
		<title>imported&gt;ImportBot: Imported from scrape</title>
		<link rel="alternate" type="text/html" href="https://rivendellaudio.wiki/index.php?title=Jack-init&amp;diff=29251&amp;oldid=prev"/>
		<updated>2026-05-09T15:18:54Z</updated>

		<summary type="html">&lt;p&gt;Imported from scrape&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw-interface=&quot;&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 10:18, 9 May 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l10&quot;&gt;Line 10:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 10:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This forces the su command to apply the new realtime permissions when /etc/init.d/jack calls it to run jack as the specified user (who must of course be in the appropriate realtime user group).&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This forces the su command to apply the new realtime permissions when /etc/init.d/jack calls it to run jack as the specified user (who must of course be in the appropriate realtime user group).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>imported&gt;ImportBot</name></author>
	</entry>
	<entry>
		<id>https://rivendellaudio.wiki/index.php?title=Jack-init&amp;diff=28828&amp;oldid=prev</id>
		<title>imported&gt;WaybackImport: Imported from Wayback via edit</title>
		<link rel="alternate" type="text/html" href="https://rivendellaudio.wiki/index.php?title=Jack-init&amp;diff=28828&amp;oldid=prev"/>
		<updated>2023-03-26T06:56:06Z</updated>

		<summary type="html">&lt;p&gt;Imported from Wayback via edit&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;This is a package provided as part of the [http://debian.tryphon.org Repository] here @ Tryphon. It&amp;#039;s intended to automatically start JACK at boot, so your Rivendell daemons can also be started at boot. It mostly works apart from..&lt;br /&gt;
&lt;br /&gt;
= Realtime issue =&lt;br /&gt;
&lt;br /&gt;
In trying to get this working on my Ubuntu Hardy system, I came across a problem with the realtime option in /etc/jackrc - this fails at system startup, and thus neither Jack nor Rivendell start. It works however once the chosen realtime user is logged in. Hmmn.&lt;br /&gt;
&lt;br /&gt;
My solution (eventually, after about 6 hours of research!) was to add the following line to the PAM configuration for su in /etc/pam.d/su:&lt;br /&gt;
&lt;br /&gt;
    session       required   pam_limits.so&lt;br /&gt;
&lt;br /&gt;
This forces the su command to apply the new realtime permissions when /etc/init.d/jack calls it to run jack as the specified user (who must of course be in the appropriate realtime user group).&lt;br /&gt;
&lt;/div&gt;</summary>
		<author><name>imported&gt;WaybackImport</name></author>
	</entry>
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