Am Mittwoch, den 03.03.2010, 18:46 +0000 schrieb Wil: […] > Other than that the default gentoo build process > worked without too many issues I don’t recall doing anything special to > setup sound. [OT: What kind of charactor was that supposed to be in »don’t«? It is encoded as »=92« in the message source.] […] > However afaik HDMI audio is sent using the SDVO interface of the Intel > graphics adapter and probably has little to do with the actual sound > hardware at all. It just needs an Alsa interface so other programs can > interface with it in the normal way. > > I believe the process is that the video driver will need to detect the > relevant SDVO output firstly as HDMI and further as HDMI audio capable. I > believe that there is also a mechanism for reconfiguring the audio outputs > at this point. I've done some logging and I don't believe that the video > driver even detects that I have an HDMI connection. If I hard coded the > is_hdmi setting and SDVO_AUDIO_ENABLE there is still no change so I believe > whatever is going on is more complex than that. The problem is I'm not > entirely sure who to ask first, starting here seemed like a good idea as > Audio therefore Alsa. However it is possible that until the video driver is > setup to handle the 945GT chipset no progress can be made. Really at this > point I think I need some advice from the developers as working out how the > linking between the video driver and the audio driver operates may be > difficult. You seem to know more about it than I do. You could contact the intel-gfx list or file directly a bug report [3][4]. The developers do respond to the bug reports after some time normally. > Thanks for your assistance and if you have any other ideas to > follow up on I may give them a try. 1. Could still attach the output of `alsa-info.sh` please. 2. One standard thing to try regarding `snd-hda-intel` is always to try different values for the `model` parameter [5]. Thanks, Paul [3] http://intellinuxgraphics.org/ [4] http://intellinuxgraphics.org/how_to_report_bug.html [5] http://alsa-project.org/main/index.php/Help_To_Debug_Intel_HDA#.27model.27_parameter
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