Michalakis Dimitrios wrote: > Hello, > > I don't get any sound from my laptop (Medion MD 96282), which has a MCP51 High Definition Audio device from nVidia corporation. Ubuntu can find the chip, has the drivers but there is no sound at all! Nothing is muted in volume control and I tried the basic troubleshooting in the wiki 'debugging sound problems' and the 'Comprehensive Sound Problem Solutions Guide v0.5e' in the ubuntu forums: http://ubuntuforums.org/showthread.php?t=205449 > with no results. Should I try something else? any suggestions? > > Thanks, > Dimitris > It seems you've done the simple things. Could you run a script which provides more information about your sound setup and post the link back here? The script is found at http://www.alsa-project.org/alsa-info.sh Have you tried running aplay to see if it can generate sound. Change the first 0 to your sound slot if appropriate. aplay -vv -D plughw:0,0 some.wav Look for complaints in /var/log/messages on boot about sound conflicts or problems. Also look when you try to play to see if something is being written. Are you running pulse? Have you set up sources and sinks for it? Does it have proper access? It acquires alsa when it runs so can block sound if not properly setup. http://www.pulseaudio.org The HD audio seems to create most of the problems lately because of their variability. You can try passing different options to the card during modprobe at startup to see if it helps. If you need help with this, post back. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user