<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content="text/html; charset=iso-8859-1" http-equiv=Content-Type> <META name=GENERATOR content="MSHTML 8.00.6001.18939"> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT size=2 face=Arial>Is it possible that sense you have two of the exact same cards, maybe one of them isn't working as there is an I R Q conflict between both of them?  I'll admit my expertees on Pulse Audio are not very good at all, and probably I shouldn't be making this assumption being I really don't totally know what I'm doing, admittedly, but it is a thought.</FONT></DIV> <DIV><FONT size=2 face=Arial></FONT> </DIV> <DIV><FONT size=2 face=Arial>Chris.</FONT></DIV> <DIV> </DIV> <BLOCKQUOTE style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> <A title=ivar.mossin@gmail.com href="mailto:ivar.mossin@gmail.com">Ivar Mossin</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=pulseaudio-discuss@mail.0pointer.de href="mailto:pulseaudio-discuss@mail.0pointer.de">pulseaudio-discuss@mail.0pointer.de</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, August 21, 2010 3:51 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> [pulseaudio-discuss] Two identical USB sound-cards - second card fails to load because card-name found in hashmap.</DIV> <DIV><BR></DIV>Hello.<BR><BR>I'm having problems loading two identical sound-cards in my computer. I'm using Ubuntu 9.10 and PulseAudio 0.9.19 coming with this release.<BR><BR>I have tried looking at the logs, and when using loglevel 4 I find these lines:<BR><A href="mailto:pulseaudio-discuss@mail.0pointer.de"></A><BR>(first card - failing scenario):<BR>Aug  9 22:53:08 ivar-laptop pulseaudio[2573]: module.c: Loaded "module-alsa-card" (index: #24; argument: "device_id="1" name="usb-BeAutiful_Qing_Audioengine_AW1-00" card_name="alsa_card.usb-BeAutiful_Qing_Audioengine_AW1-00" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1"").<BR><BR>(second card - failing scenario):<BR>Aug  9 22:58:32 ivar-laptop pulseaudio[2573]: module.c: Failed to load  module "module-alsa-card" (argument: "device_id="2" name="usb-BeAutiful_Qing_Audioengine_AW1-00" card_name="alsa_card.usb-BeAutiful_Qing_Audioengine_AW1-00" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1""): initialization failed.<BR><BR><BR>I downloaded the source-code using 'apt-get source pulseaudio' and was looking around a bit. What I found was that the pa__init() function in modules/alsa/module-alsa-card.c called a function pa_card_new() located in pulsecore/card.c which returned a null-pointer. This function again called pa_namereg_register() in pulsecore/namereg.c which returned NULL because it could find the card-name in the hashmap and the fail argument was set to TRUE. As a simple test, I changed the fail argument to FALSE, and the second module loaded as well:<BR><BR>(first card - working scenario):<BR>Aug 21 18:10:03 ivar-laptop pulseaudio[3835]: module.c: Loaded "module-alsa-card" (index: #18; argument: "device_id="2" name="usb-BeAutiful_Qing_Audioengine_AW1-00" card_name="alsa_card.usb-BeAutiful_Qing_Audioengine_AW1-00" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1"").<BR><BR>(second card - working scenario):<BR>Aug 21 18:12:37 ivar-laptop pulseaudio[3835]: module.c: Loaded "module-alsa-card" (index: #19; argument: "device_id="3" name="usb-BeAutiful_Qing_Audioengine_AW1-00" card_name="alsa_card.usb-BeAutiful_Qing_Audioengine_AW1-00" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1"").<BR><BR><BR>Having this flag set to TRUE basically disables the functionality further down in the pa_namereg_register() which tries to add a ".%u" to the card-name, where %u starts at 2 and gives up at 99. Trying to figure out where this flag was set, I found that it had been set by a function set_card_name() called further up in pa__init(). If the module being loaded has the argument "card_name" or "name", then data->namereg_fail is set to TRUE. Looking at the arguments given in the logfile, it actually provides both of these arguments, also at load-time:<BR><BR>(second card - failing scenario):<BR>Aug  9 22:58:32 ivar-laptop pulseaudio[2573]: module-udev-detect.c: Loading module-alsa-card with arguments 'device_id="2" name="usb-BeAutiful_Qing_Audioengine_AW1-00" card_name="alsa_card.usb-BeAutiful_Qing_Audioengine_AW1-00" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1"'<BR><BR><BR>So my questions are:<BR>Is there a way to load both these cards without modifying the source?<BR>Can I configure something to make this work?<BR>What is the reasoning behind setting this flag at all?<BR>Which side-effect will I experience by simply ignoring this flag, and trying to add a ".%u" to the card-name anyway?<BR><BR>Thanks for any help provided.<BR><BR><BR>Kind Regards,<BR>Ivar Mossin<BR> <P> <HR> <P></P>_______________________________________________<BR>pulseaudio-discuss mailing list<BR>pulseaudio-discuss@mail.0pointer.de<BR>https://tango.0pointer.de/mailman/listinfo/pulseaudio-discuss<BR></BLOCKQUOTE></BODY></HTML>