I experienced similar troubles just a while back with my Realtek ALC662 chip. I'm not claiming to understand why, but it turned out I needed to add the following to my /etc/modprobe.d/alsa-base.conf:
options snd-hda-intel model=3stack-6ch-dig After reboot, a control pops up in alsamixer, enabling me to switch between 2 and 6 channels. Good luck! /Eric On 2010-08-23 22:50, Андрей wrote: > Hi, everybody :) > > //This is my 1st talking in mailing lists, so please sorry me if I'll be do > something wrong. > > Please, help me with problem in support by ALSA my soundcard. I mean - I can > not get full support of his six channel output. On Slackware, Kubuntu, > openSUSE my card working only in 2-channel mode. > What will be if I manually compile ALSA - I don't know, because I did not > performed this action. > > Sound card is integrated in ASUS M2N motherboard. If I correct chip name is > Analog Devices AD1988. > > What is "sudo lspci -vv" said about sound-chip: > > 00:05.0 Audio device: nVidia Corporation MCP61 High Definition Audio (rev a2) > Subsystem: ASUSTeK Computer Inc. Device 8234 > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR- FastB2B- DisINTx- > Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast>TAbort- > <TAbort-<MAbort->SERR-<PERR- INTx- > Latency: 0 (500ns min, 1250ns max) > Interrupt: pin B routed to IRQ 20 > Region 0: Memory at dd7f8000 (32-bit, non-prefetchable) [size=16K] > Capabilities: [44] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA > PME(D0-,D1-,D2-,D3hot+,D3cold+) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ > Queue=0/0 Enable- > Address: 0000000000000000 Data: 0000 > Masking: 00000000 Pending: 00000000 > Capabilities: [6c] HyperTransport: MSI Mapping Enable- Fixed+ > Kernel driver in use: HDA Intel > Kernel modules: snd-hda-intel > > Respectfully, Andrew Poltavets. > > ------------------------------------------------------------------------------ > Sell apps to millions through the Intel(R) Atom(Tm) Developer Program > Be part of this innovative community and reach millions of netbook users > worldwide. Take advantage of special opportunities to increase revenue and > speed time-to-market. Join now, and jumpstart your future. > http://p.sf.net/sfu/intel-atom-d2d > _______________________________________________ > Alsa-user mailing list > Alsa-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/alsa-user > ------------------------------------------------------------------------------ Sell apps to millions through the Intel(R) Atom(Tm) Developer Program Be part of this innovative community and reach millions of netbook users worldwide. Take advantage of special opportunities to increase revenue and speed time-to-market. Join now, and jumpstart your future. http://p.sf.net/sfu/intel-atom-d2d _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user