"Andrew T. Rich" wrote: > dmesg|grep bttv: > bttv: driver version 0.7.72 loaded > bttv: using 2 buffers with 2080k (4160k total) for capture > bttv: Bt8xx card found (0). > bttv0: Bt878 (rev 2) at 00:09.0, irq: 10, latency: 32, memory: 0xde000000 > bttv0: subsystem: 1002:0001 => ATI TV Wonder => card=63 > bttv0: model: BT878(ATI TV-Wonder) [autodetected] > bttv0: i2c: checking for MSP34xx @ 0x80... found > bttv0: i2c attach [MSP3430G-A4] So msp3400.c is your audio driver. 1) Try rmmod msp3400 insmod msp3400 debug=1 This will show what MSP34xx thinks about your audio signals. 2) Try insmod msp3400 debug=1 simple=0 See if un-"simple" helps.