BugLink: https://bugs.launchpad.net/bugs/410933
This Sony VAIO model also needs External Amplifier unmuted for audible
playback, so make sure we set the inv_eapd quirk.
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
 
                .name = "Sony VAIO VGN-T350P", /*AD1981B*/
                .type = AC97_TUNE_INV_EAPD
        },
+       {
+               .subvendor = 0x104d,
+               .subdevice = 0x81c5,
+               .name = "Sony VAIO VGN-B1VP", /*AD1981B*/
+               .type = AC97_TUNE_INV_EAPD
+       },
        {
                .subvendor = 0x1043,
                .subdevice = 0x80f3,