Hi,<br><br>I had misdiagnosed the problem in my previous message: the actual problem is that audio has stopped working on this machine, period. I don't know if the information I'm giving below is useful so please let me know if there's anything else I can tell you. I might have a gig in a few weeks so I really need to get sound working again.
<br><br>I use smarrt to keep my system up to date which means I have packages installed from a variety of apt repositories but I'm running a Planet kernel. I'm not sure whether the problem started after an upgrade but I assume it must have done. When it started I was using alsa-lib
<a href="http://1.0.10-26.rhfc4.at">1.0.10-26.rhfc4.at</a> (not sure if it started when this was installed though) and apps were not able to open the sound devices, as if they were being blocked by another program (but they weren't). I downgraded to
1.0.10-1.rhfc4.ccrma but now if I try to use, say, aplay I get <br><br>ALSA lib pcm.c:1969:(snd_pcm_open_conf) Invalid type for PCM dmix:0 definition (id: dmix, value: cards.pcm.dmix)<br>aplay: main:544: audio open error: Invalid argument
<br><br>When the package was being installed I got messages about /etc/alsa/pcm/dmix.conf and dsnoop.conf being saved as dmix.conf.rpmsave and dsnoop.conf.rpmsave respectively. This lead to some different error messages to the ones above so I coped the rpmsaves into the files they conflicted with and rebooted, which lead to the errors above.
<br><br>I really hope somebody can help me. <br><br>Nathaniel<br><br>