Hello,

I'm experiencing crap sound preformance from my ALC 850/880 chipset. I'm first wondering if their is a way to set the model other than the /etc/modprobe.d/alsa-base.conf file? Can I try different models without rebooting? So far I've tried the model 6stack, since that sounds like what I have on my motherboard. Furthermore, does anybody have any ideas on what else I can do so that my computer can sound at least as good as my $20 coby mp3 player?

I've tried both driver version 1.0.21 and more recently 1.0.23, with no improvment in sound.

cat /proc/asound/version Advanced Linux Sound Architecture Driver Version 1.0.23. Compiled on Nov 26 2010 for kernel 2.6.32-5-amd64 (SMP).

cat /proc/asound/version Advanced Linux Sound Architecture Driver Version 1.0.21.

The output from lspci :

00:10.1 Audio device [0403]: nVidia Corporation MCP51 High Definition Audio [10de:026c] (rev a2) =A0 =A0 =A0 =A0Subsystem: Giga-byte Technology Device [1458:a102] =A0 =A0 =A0 =A0Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop= - ParErr- Stepping- SERR- FastB2B- DisINTx- =A0 =A0 =A0 =A0Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=3Dfast >T= Abort- <TAbort- <MAbort- >SERR- <PERR- INTx- =A0 =A0 =A0 =A0Latency: 0 (500ns min, 1250ns max) =A0 =A0 =A0 =A0Interrupt: pin B routed to IRQ 22 =A0 =A0 =A0 =A0Region 0: Memory at f5100000 (32-bit, non-prefetchable) [s= ize=3D16K] =A0 =A0 =A0 =A0Capabilities: [44] Power Management version 2 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Flags: PMEClk- DSI- D1- D2- AuxCurrent=3D0= mA PME(D0-,D1-,D2-,D3hot+,D3cold+) =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Status: D0 NoSoftRst- PME-Enable- DSel=3D0= DScale=3D0 PME- =A0 =A0 =A0 =A0Capabilities: [50] MSI: Enable- Count=3D1/1 Maskable+ 64bi= t+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Address: 0000000000000000 =A0Data: 0000 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Masking: 00000000 =A0Pending: 00000000 =A0 =A0 =A0 =A0Capabilities: [6c] HyperTransport: MSI Mapping Enable+ Fix= ed+ =A0 =A0 =A0 =A0Kernel driver in use: HDA Intel