<p><br>
On Mar 21, 2012 6:22 PM, &quot;Alan Mackenzie&quot; &lt;<a href="mailto:acm@muc.de">acm@muc.de</a>&gt; wrote:<br>
&gt;<br>
&gt; Hello, Pandu.<br>
&gt;<br>
&gt; On Wed, Mar 21, 2012 at 07:35:14AM +0700, Pandu Poluan wrote:<br>
&gt; &gt; On Mar 21, 2012 5:36 AM, &quot;Alan Mackenzie&quot; &lt;<a href="mailto:acm@muc.de">acm@muc.de</a>&gt; wrote:<br>
&gt;<br>
&gt; &gt; &gt; Hi, all.<br>
&gt;<br>
&gt; &gt; &gt; Got a problem with my system running under mdev.  When I try to play CDs<br>
&gt; &gt; &gt; (with aqualung feeding into PulseAudio), no sound comes out.  However,<br>
&gt; &gt; &gt; when I listen to an audio section from a newspaper page such as<br>
&gt; &gt; &gt; <a href="http://www.tagesschau.de">www.tagesschau.de</a> (no idea what audio format) it works.<br>
&gt;<br>
&gt; &gt; &gt; Clearly this is something to do with mdev.  I had a look at the devices<br>
&gt; &gt; &gt; in /dev, searching for those in group audio.  Under udev, I find the<br>
&gt; &gt; &gt; following as device nodes:<br>
&gt;<br>
&gt; &gt; &gt; adsp audio dsp mixer mixer1 sequencer sequencer2.<br>
&gt;<br>
&gt; &gt; &gt; Under mdev, all of these bar one are symlinks into the real nodes in a<br>
&gt; &gt; &gt; subdirectory.  The odd man out is mixer1 which is a device node, but<br>
&gt; &gt; &gt; with owner/group begin root/root (rather than root/audio).<br>
&gt;<br>
&gt; &gt; &gt; Can anybody suggest any fix, or further areas of exploration?  Thanks!<br>
&gt;<br>
&gt;<br>
&gt; &gt; That&#39;s indicative that it&#39;s the kernel doing the populating (that is,<br>
&gt; &gt; everything belongs to root:root).<br>
&gt;<br>
&gt; No, it was just that one device belonging to root:root.  This is<br>
&gt; mysterious indeed.<br>
&gt;<br>
&gt; &gt; That means, mdev hasn&#39;t got the chance to &#39;restructure&#39; the /dev<br>
&gt; &gt; directory (that is, rename and/or move and/or chown devices).<br>
&gt;<br>
&gt; &gt; Does &#39;mdev -s&#39; exist in your /sbin/linuxrc? Can you post your linuxrc<br>
&gt; &gt; here?<br>
&gt;<br>
&gt; mdev -s wasn&#39;t in my /sbin/linuxrc.  It is now.  It hasn&#39;t made any<br>
&gt; difference to that wayward device.<br>
&gt;<br>
&gt; As I said to Walt, I&#39;ve solved the problem by turfing out pulseaudio.<br>
&gt;</p>
<p>Strange...</p>
<p>Do you use mdev to handle hotplugs, btw?</p>
<p>Rgds,<br>
</p>