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with pulse, it's silent; without sound workswith pulse, it's silent; without sound worksPosted Aug 26, 2010 13:31 UTC (Thu) by mjg59 (subscriber, #23239)In reply to: with pulse, it's silent; without sound works by sebas Parent article: Systemd and Fedora 14
That it's an Intel HDA tells you nothing - the HDA spec is pretty much just a semi-defined bit of glue in front of a codec, and there's literally dozens of different codecs. Some of these are more spec-compliant than others and it's not uncommon for them to require chip-specific quirks. See source/pci/hda to get some idea of just how much complexity there is in what looks like a single chip.
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with pulse, it's silent; without sound works Posted Aug 26, 2010 14:00 UTC (Thu) by sebas (subscriber, #51660) [Link]
Ow, I'm convinced it's rather more complex than I am able to understand -- but that probably goes for the vast majority of the users. The gist is that without pulse it works, and with it, it simply doesn't. And that's also what the user will experience -- a very poor multimedia experience.
with pulse, it's silent; without sound works Posted Aug 26, 2010 14:29 UTC (Thu) by mjg59 (subscriber, #23239) [Link]
When you say "The user", you mean "A user with this specific codec". The majority of hda codecs work absolutely perfectly with pulse at this point, and it's usually not too difficult to fix the others. But the fact remains that this is the kernel failing to compensate for broken hardware, and while it may be reasonable to use this as a reason to say that Pulse shouldn't be the default it's unfair to blame the problem on Pulse itself.
with pulse, it's silent; without sound works Posted Aug 27, 2010 17:12 UTC (Fri) by Trelane (guest, #56877) [Link]
It should perhaps also be mentioned that "codec" is a specific bit of jargon specific to the HDA spec (available on the intarwebs; this is how I know about these things, although it's been a while and I'd greatly appreciate supplements/corrections where appropriate).
The HDA spec has a tree structure, and one of the nodes is a "codec," referring to a virtualized interface to a block that Does Stuff. This is used to interesting effect with the sound card discussed at http://blogs.amd.com/home/2009/06/16/turning-it-up-to-11/, where the HDA protocol itself is used as a transport/formalization of a higher-level protocol used to drive a particularly novel consumer-level sound card.
IIRC. It's been a bit since I read the specs on this card and therefore also the HDA specs to understand Intel HDA as it was being used here. (Sadly, I never got enough hand-holding to get a driver up and running on ALSA and perhaps also lacked the motivation, not actually having hardware to play/test with.)
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