Hi! Thx for your response! I've attached the amixer output for the live system (amixer_live.txt), the installed system with all options identical to the live system (amixer_installed.txt) and the output for the installed system using the probe_mask and position_fix options (amixer_posfix.txt). I see no differences between the live and installed system other than the volume settings. In the amixer_posfix output, the modem devices are missing because of the probe_mask option. One unusual thing I noticed when starting the installed system without the additional options ist that the capture device is shown in alsamixer and amixer. Most of the time, the capture device didn't even exist within the installed system. And quite often the sound output didn't work too (as I wrote on the ALSA list: it's kind of a sound-lottery). However, although this time there was capture device, recording did not work. Gnome's audi-recorder stopped directly after starting and crashed afterwards (same error as usual). Seems like there wasn't anything to record, like an empty stream of length 0... I've done most of the live-tests using the karmic Alpha 6 live CD. The installed system is the current karmic. Initially, both kernels were identical, currently there is little difference: The live system: Linux ubuntu 2.6.31-10-generic #34-Ubuntu SMP Wed Sep 16 00:23:19 UTC 2009 i686 GNU/Linux The installed system: Linux andicompi 2.6.31-11-generic #36-Ubuntu SMP Fri Sep 25 06:37:51 UTC 2009 i686 GNU/Linux Regards JK <div class="gmail_quote">2009/9/30 Lennart Poettering <<a href="mailto:lennart@poettering.net">lennart@poettering.net</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div class="im">On Fri, 25.09.09 13:11, <a href="mailto:remrot@gmail.com">remrot@gmail.com</a> (<a href="mailto:remrot@gmail.com">remrot@gmail.com</a>) wrote: > Hi again! > > I found a workaround for the dead mic: adding 'position_fix=1' to the > option list brought it back to life! However, it's still different from > within the live system. The recorded stream is very quiet and contains > significant noise, unlike in the live system where volume and quality were > very good, even with the capture device almost muted! So, it still remains a > very strange bug and I wrote another mail to the ALSA developer list > containing additional information collected with their info-script. You can > take a look at it there if you like (the devel, not the users list). I'm > curious if I'll ever get a response... </div>The output of "amixer -c0" on the live medium and the installation might be very interesting. This should tell us why decibel works on one, but not on the other. Are kernels used any different? What does "uname -a" say on both systems? Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net <a href="http://0pointer.net/lennart/" target="_blank">http://0pointer.net/lennart/</a> GnuPG 0x1A015CC4 <div><div></div><div class="h5">_______________________________________________ pulseaudio-discuss mailing list <a href="mailto:pulseaudio-discuss@mail.0pointer.de">pulseaudio-discuss@mail.0pointer.de</a> <a href="https://tango.0pointer.de/mailman/listinfo/pulseaudio-discuss" target="_blank">https://tango.0pointer.de/mailman/listinfo/pulseaudio-discuss</a> </div></div></blockquote></div>