<div class="gmail_quote">On Sat, Mar 21, 2009 at 3:26 AM, Dave M G <span dir="ltr"><<a href="mailto:martin@autotelic.com">martin@autotelic.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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... or at least I think it's solved.<br>
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Following advice on this web page:<br>
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<a href="http://onlyubuntu.blogspot.com/2008/11/fix-for-no-sound-issue-in-ubuntu-810.html" target="_blank">http://onlyubuntu.blogspot.com/2008/11/fix-for-no-sound-issue-in-ubuntu-810.html</a><br>
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... I ran the command:<br>
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sudo alsa force-reload<br>
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And that seems to have brought sound back.<br>
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I am not sure why this worked and rebooting didn't.<br>
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Also, the above page seems to indicate pulseaudio is the problem, but I don't think I ever had pulseaudio.<br>
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Still, it seems to be working for now, so I'll roll with it.<br><font color="#888888">
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</font></blockquote><div><br>Were you using digital output?<br><br>If so, the problem most likely (or the one I've run into) is that the digital output got forced/stuck into DD mode and was not allowing PCM stereo to pass. This happens due to a corrupt DD frame (some dvds and digital tv have this).<br>
<br>When you reboot, ubuntu (and most distros) save your current alsa settings (like an alsactl dump), and then on startup restore them. Unfortunatly those settings are now corrupt (I've done a diff, you can easily see the setting that is hosed), so rebooting simply reloads the dead settings at startup again!<br>
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