hello, I have opened this ticket on ubuntu-alsa launchpad _https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1319291 Raymond (superquad-vortrex2) ask me to contact you. ----quote Try specify model=6stack-dig https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/Documentat... 00:1b.0 0403: 8086:2668 (rev 04) Subsystem: 147b:1045 send email to alsa-devel mailing list to add pci quirk since Bios does not setup pin default Default 0x00000000: [Jack] Line Out at Ext N/A Sysfs Files !!----------- /sys/class/sound/hwC0D0/init_pin_configs: 0x14 0x00000000 0x15 0x00000000 0x16 0x00000000 0x17 0x00000000 0x18 0x00000000 0x19 0x00000000 0x1a 0x00000000 0x1b 0x00000000 0x1c 0x00000000 0x1d 0x00000000 0x1e 0x00000000 0x1f 0x00000000 ----- whit Ubuntu 12.04 I don't have this problem bye