Well... just installed bttv-0.7.48 (BTW on WWW page there is still 0.7.46) and I still can't get stereo sound. I grep Windows drivers from CD, and found: ^@~C^@P^@^@s^@^@^H^A ^@^K^A ^@^O^D^@^@^P^?^@^@Found a TDA9874 ^@Found an MPS3410 ^@No Nicam chip found so maybe I should use TDA9874? I found tda9873 in tvaudio, but can't turn it on - even if I modprobe tvaudio tda9873=1 then modprobe bttv dmesg still show me, that tda9840 is detected! the most strange thing, is that mono/stereo switch works with code: if (btv->audio_chip==TDA9840) { if (v.mode & VIDEO_SOUND_STEREO) set_tda9840(btv,0x2a); if (v.mode & VIDEO_SOUND_MONO) set_tda9840(btv,0x10); } and: void set_tda9840(struct bttv *btv,int value) { bttv_I2CWrite(btv, I2C_TDA9840, TDA9840_SW, value, 1); /* sound mode switching */ } added to bttv-0.7.35 in bttv-0.7.48 I see messages like: tda9840: chip_write: reg0=0x10 tda9840: chip_write: reg0=0x2a but there is no effect in speakers... should I just sit and cry? -- I love the night So many shadows Unholy light Secrets of the heart Leave 'em in the dark "Lord of the Last Day" Forever - Ronnie James Dio