do you get sound from your CK804 analog output when using speaker-test ? pulseaudio select your spdif iec958 as active profile instead of analog
name: <alsa_card.pci-0000_00_04.0> driver: <module-alsa-card.c> owner module: 4 properties: alsa.card = "1" alsa.card_name = "NVidia CK804" alsa.long_card_name = "NVidia CK804 with ALC850 at irq 22" alsa.driver_name = "snd_intel8x0" device.bus_path = "pci-0000:00:04.0" sysfs.path = "/devices/pci0000:00/0000:00:04.0/sound/card1" device.bus = "pci" device.vendor.id = "10de" device.vendor.name = "NVIDIA Corporation" device.product.name = "CK804 AC'97 Audio Controller" device.form_factor = "internal" device.string = "1" device.description = "Built-in Audio" module-udev-detect.discovered = "1" device.icon_name = "audio-card-pci" profiles: output:analog-stereo: Analog Stereo Output (priority 6000) output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6060) output:analog-surround-40: Analog Surround 4.0 Output (priority 700) output:analog-surround-40+input:analog-stereo: Analog Surround 4.0 Output + Analog Stereo Input (priority 760) output:analog-surround-41: Analog Surround 4.1 Output (priority 800) output:analog-surround-41+input:analog-stereo: Analog Surround 4.1 Output + Analog Stereo Input (priority 860) output:analog-surround-50: Analog Surround 5.0 Output (priority 700) output:analog-surround-50+input:analog-stereo: Analog Surround 5.0 Output + Analog Stereo Input (priority 760) output:analog-surround-51: Analog Surround 5.1 Output (priority 800) output:analog-surround-51+input:analog-stereo: Analog Surround 5.1 Output + Analog Stereo Input (priority 860) output:analog-surround-71: Analog Surround 7.1 Output (priority 700) output:analog-surround-71+input:analog-stereo: Analog Surround 7.1 Output + Analog Stereo Input (priority 760) output:iec958-stereo: Digital Stereo (IEC958) Output (priority 5500) output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output + Analog Stereo Input (priority 5560) input:analog-stereo: Analog Stereo Input (priority 60) off: Off (priority 0) active profile: <output:iec958-stereo+input:analog-stereo> -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1299857 Title: [CA0106 - CA0106, playback] Background noise or low volume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1299857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs