On 26.11.2010 04:02, John Ettedgui wrote: > On Thu, Nov 25, 2010 at 5:08 PM, John Ettedgui <john.ettedgui@xxxxxxxxx> wrote: >> On Thu, Nov 25, 2010 at 4:59 PM, Anssi Hannula <anssi.hannula@xxxxxx> wrote: >>> On 26.11.2010 02:53, John Ettedgui wrote: >>>> On Thu, Nov 25, 2010 at 3:34 PM, John Ettedgui <john.ettedgui@xxxxxxxxx> wrote: >>>>> On Thu, Nov 25, 2010 at 3:15 PM, Anssi Hannula <anssi.hannula@xxxxxx> wrote: >>>>>> 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 >>>>>> >>>>> >>>>> Well, I have not super tested it, but the reason I believe it is is >>>>> simple, when I use passthrough my receiver says Dolby digital or >>>>> something like that, but in Windows just going around or playing games >>>>> it says Multichannel. >>> >>> Sounds ok then. >>> >>>>> I'll get the patch applied in a few minutes, I was running out of >>>>> memory and my system was getting really slow... :) >>>>> >>>> >>>> I am not sure if I did it right but now I don't even get hdmi sound >>>> working anymore. >>>> It is not listed in aplay-l, and dmesg gives me this: >>>> [drm:radeon_dvi_detect] *ERROR* HDMI Type A-1: probed a monitor but >>>> no|invalid EDID >>>> >>>> I've attached the patch I used, since I could not used the previous >>>> one I had to hack it, maybe I broke something? >>>> (I have not set channels to 8 yet, just changed the parser) >>> >>> The patch looks ok. The above error message is weird, as it comes from >>> the display driver which should not be affected by the patch at all. >>> >>> I'll look at the code later (tomorrow maybe). Until then I'd advise you >>> to retry without the patch and with the patch again, just to make sure >>> this is not some unrelated issue... >>> Also, post the whole dmesg when it works (2 channel, without patch), and >>> when it doesn't (with patch). >>> >>> -- >>> Anssi Hannula >>> >> Following your message I restarted my computer and that error was >> gone, yet there is still nothing display in aplay -l / aplay -L about >> hdmi anymore. >> I'll go back to my non patched kernel and see what it does. >> > With the non-patched kernel I get back my hdmi in aplay -l, so it > looks like the patch messed up something. Indeed. > I really think that when I tried it before it did not do that, but it > was so long ago that I could be wrong... Well, the driver has changed since then, it could be more strict now :) > Anyway here are the 2 dmesgs (not sure if they'll help though). Indeed, there doesn't seem to be any difference. Maybe try with CONFIG_SND_DEBUG_VERBOSE? -- Anssi Hannula _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
