<p><br> On Mar 21, 2012 6:22 PM, "Alan Mackenzie" <<a href="mailto:acm@muc.de">acm@muc.de</a>> wrote:<br> ><br> > Hello, Pandu.<br> ><br> > On Wed, Mar 21, 2012 at 07:35:14AM +0700, Pandu Poluan wrote:<br> > > On Mar 21, 2012 5:36 AM, "Alan Mackenzie" <<a href="mailto:acm@muc.de">acm@muc.de</a>> wrote:<br> ><br> > > > Hi, all.<br> ><br> > > > Got a problem with my system running under mdev. When I try to play CDs<br> > > > (with aqualung feeding into PulseAudio), no sound comes out. However,<br> > > > when I listen to an audio section from a newspaper page such as<br> > > > <a href="http://www.tagesschau.de">www.tagesschau.de</a> (no idea what audio format) it works.<br> ><br> > > > Clearly this is something to do with mdev. I had a look at the devices<br> > > > in /dev, searching for those in group audio. Under udev, I find the<br> > > > following as device nodes:<br> ><br> > > > adsp audio dsp mixer mixer1 sequencer sequencer2.<br> ><br> > > > Under mdev, all of these bar one are symlinks into the real nodes in a<br> > > > subdirectory. The odd man out is mixer1 which is a device node, but<br> > > > with owner/group begin root/root (rather than root/audio).<br> ><br> > > > Can anybody suggest any fix, or further areas of exploration? Thanks!<br> ><br> ><br> > > That's indicative that it's the kernel doing the populating (that is,<br> > > everything belongs to root:root).<br> ><br> > No, it was just that one device belonging to root:root. This is<br> > mysterious indeed.<br> ><br> > > That means, mdev hasn't got the chance to 'restructure' the /dev<br> > > directory (that is, rename and/or move and/or chown devices).<br> ><br> > > Does 'mdev -s' exist in your /sbin/linuxrc? Can you post your linuxrc<br> > > here?<br> ><br> > mdev -s wasn't in my /sbin/linuxrc. It is now. It hasn't made any<br> > difference to that wayward device.<br> ><br> > As I said to Walt, I've solved the problem by turfing out pulseaudio.<br> ></p> <p>Strange...</p> <p>Do you use mdev to handle hotplugs, btw?</p> <p>Rgds,<br> </p>