2010/10/14 Valentine Sinitsyn <valentine.sinitsyn@xxxxxxxxx> > There are laptop which has 2.1 speakers which subwoofer is connected to >> master mono pin of the STAC codec , The ".1" subwoofer is most likely the >> result of a Low pass filter attached to the mono pin >> > Maybe - I'm not pretending I've seen all possible configurations. Since the > idea I'm discussing is to just add some new models for several laptops with > subwoffers, ultimately it doesn't matter which pin has the subwoofer > connected, it just have to be correct pin for a given laptop family (0x17 > for mine, whatever corresponds to Master Mono for someone else's etc). https://bugtrack.alsa-project.org/alsa-bug/view.php?id=5031 The Dell XPS M1710 has 2.1 speakers with volume controls on both stereo speakers and Subwoofer, Node 0x11 [Pin Complex] wcaps 0x400104: Mono Amp-Out Amp-Out caps: N/A Amp-Out vals: [0x00] Pincap 0x00000010: OUT Pin Default 0x90170311: [Fixed] Speaker at Int N/A Conn = Analog, Color = Unknown DefAssociation = 0x1, Sequence = 0x1 Misc = NO_PRESENCE Pin-ctls: 0x40: OUT Connection: 1 0x13 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel