On 26.11.2010 01:11, John Ettedgui wrote: > On Thu, Nov 25, 2010 at 2:58 PM, Anssi Hannula <anssi.hannula@xxxxxx> wrote: >> On 26.11.2010 00:42, John Ettedgui wrote: >>> On Thu, Nov 25, 2010 at 11:19 AM, Anssi Hannula <anssi.hannula@xxxxxx> wrote: >>>> On 25.11.2010 14:21, John Ettedgui wrote: >>>>> On Thu, Nov 25, 2010 at 3:40 AM, Anssi Hannula <anssi.hannula@xxxxxx> wrote: >>>>>> On 25.11.2010 13:09, John Ettedgui wrote: >>>>>>> On Thu, Nov 25, 2010 at 2:49 AM, Anssi Hannula <anssi.hannula@xxxxxx> wrote: >>>>>>>> On 25.11.2010 06:12, John Ettedgui wrote: >>>>>>>>> I'm actually trying to get a 5.1 setup working without passthrough, if >>>>>>>>> I use mplayer with passthrough my receiver behaves just fine, but I am >>>>>>>>> trying to send the 6 channels from the computer. >>>>>>>>> >>>>>>>>> I was actually told that the current ALSA driver for radeon's hdmi >>>>>>>>> does not support more than 2 channels, and that would explain why I'm >>>>>>>>> getting this behavior. Is that true though? >>>>>>>> >>>>>>>> Yes. >>>>>>>> >>>>>>>> >>>>>>>> However, strangely your log output seems to show the intel's hdmi parser >>>>>>>> being used instead: >>>>>>>> >>>>>>>>> ALSA sound/pci/hda/patch_intelhdmi.c:842: hdmi_setup_stream: NID=0x2, >>>>>>>>> stream=0x1, new-format=0x11 >>>>>>>> >>>>>>>> Were you just trying some patch at the time? >>>>>>> >>>>>>> yes Wu gave me a patch to try against the kernel, I'm guessing this is >>>>>>> the reason you see something unexpected. >>>>>> >>>>>> Did 6 channels work with that patch? (possibly with a wrong channel order) >>>>> Not any better as far as I remember. >>>> >>>> OK. Did 2 channel audio continue to work with it? >>>> >>>> If you are not sure, here's the patch doing the same thing against >>>> current alsa driver: >>>> http://stuff.onse.fi/0001-ALSA-hda-Use-generic-HDMI-code-for-ATI-HDMI-codecs.patch >>>> >>>> Confirming that would help (it would allow to switch the ATI chip to use >>>> the generic parser instead of the ATI-specific one), though not with the >>>> multichannel issue (see below). >>>> >>>> [...] >>>> >>>>>>> Since I just moved to jack/rca cables I'm in no hurry anymore, but is >>>>>>> there any reason why the driver cannot work with more than 2 channels? >>>>>> >>>>>> I don't really know (it is simply not implemented). >>>>> Alright. >>>>>> >>>>>>> Anything I could do to help with that? >>>>>> >>>>>> Possibly. But see above, so that we won't try the same things you >>>>>> already tried :) >>>>>> >>>>> Sure :) >>>> >>>> Looking again at the the alsa info output you provided, I don't think I >>>> have any great ideas. It looks like the chip simply reports that it >>>> supports a maximum of 2 channels. >>>> >>>> One option could be hardcoding "chans = 8;" in generic_hdmi_build_pcms() >>>> in sound/pci/hda/patch_hdmi.c (assuming you have the above patch and 2 >>>> channel audio works with it). However, I find it rather unlikely that it >>>> would make any difference. >>>> >>>> -- >>>> Anssi Hannula >>>> >>> >>> Anssi, >>> the patch fails on my kernel, I cannot find the hda_codec_preset >>> manually in there either. >>> Did you want me to try that against a 2.6.37 rc instead of a 2.6.36? >> >> For 2.6.36 I think you can just use your earlier patch. >> >> Note that on that kernel generic_hdmi_build_pcms() is >> intel_hdmi_build_pcms() in patch_intelhdmi.c. >> > ok >> BTW, I've just been informed by another ATI user that his card was >> actually stereo-only, while he thought earlier it was multichannel >> capable. So, are you sure your card is a multichannel one? >> (if not, it would explain why the card says it is not) >> >> -- >> Anssi Hannula >> > Yes, it works fine in Window so I believe the hardware part is good. And you are sure it is multichannel PCM, and not e.g. multichannel DTS or multichannel AC-3 with on-the-fly compression, which are possible with stereo hdmi as well? Just making sure :) -- Anssi Hannula _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
