I updated from Linux Mint 14 to 15 recently, and since then my audio driver seems to be gone or nonfunctional. I don't have a ton of experience with drivers under Linux (grew up a Windows guy), but the couple of drivers I attempted to install haven't worked. lspci gives me
00:10.1 Audio device : NVIDIA Corporation MCP51 High Definition Audio [10de:026c] (rev a2) Subsystem: Hewlett-Packard Company Presario V3242AU [103c:30b5] 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 10 Region 0: Memory at c0000000 (32-bit, non-prefetchable) [size=16K] Capabilities:  Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities:  MSI: Enable- Count=1/1 Maskable+ 64bit+ Address: 0000000000000000 Data: 0000 Masking: 00000000 Pending: 00000000 Capabilities: [6c] HyperTransport: MSI Mapping Enable- Fixed+
Then if I run:
the output gives me:
aplay: device_list:252: no soundcards found...
I can't recall the exact model of sound card I have, but I believe it's an nForce 4-series. Searching several forums gave me no help.