Sound though HDMI/Displayport not working - nVidia audio

[oshunluvr]

An update if anyone is following this thread...

OK, so I found a workaround for the nouveau driver and its locking up issue. Adding "nouveau.noaccel=1" to the boot line stops the lock ups. It also kills desktop effects but at least I can use KDEneon again. It's noticeably jerky when re-positioning windows, etc., but useable.

I may try to go back to the nvidia driver, but an older version to see if audio becomes available. I'm hoping updates will come down that solve it. There's not a lot of locateable info out there on this (the HDMI audio) issue.

Interestingly, I was using Manjaro with the nouveau driver because it had sound, but system notifications didn't work. I don't have time right now to run down separate issues in two distros so I'll leave it be for now.

With both distros there's an odd lag whenever audio starts. I pinned it to a lag because I could go to the device testing in System Settings > Multimedia and when I clicked "Front Left" all I hear is "Left" but if I press it again I hear the full "Front Left" response. I only hear this through the HDMI audio, not the built-in audio.

[vinnywright]

sorry to hear your trouble my friend ,,,,,,,all I can offer is I'm having no problem with HDMI audio with Nvidia drivers or nouveau ,,,,,in this system it's nouveau (neon-LTS)

vinny@vinny-Bonobo-Extreme:~$ inxi -G
Graphics:  Card: NVIDIA GK104M [GeForce GTX 860M]
        Display Server: X.Org 1.18.4 drivers: nouveau (unloaded: fbdev,vesa) Resolution: 1920x1080@60.01hz
        GLX Renderer: Gallium 0.4 on NVE4 GLX Version: 3.0 Mesa 12.0.6

vinny@vinny-Bonobo-Extreme:~$ inxi -A
Audio:     Card-1 Intel 8 Series/C220 Series High Definition Audio Controller driver: snd_hda_intel
        Card-2 NVIDIA GK104 HDMI Audio Controller driver: snd_hda_intel
        Sound: Advanced Linux Sound Architecture v: k4.8.0-54-generic

vinny@vinny-Bonobo-Extreme:~$ pactl list sources
Source #0
      State: SUSPENDED
      Name: alsa_output.pci-0000_01_00.1.hdmi-stereo.monitor
      Description: Monitor of GK104 HDMI Audio Controller Digital Stereo (HDMI)
      Driver: module-alsa-card.c
      Sample Specification: s16le 2ch 48000Hz
      Channel Map: front-left,front-right
      Owner Module: 6
      Mute: no
      Volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 65536 / 100% / 0.00 dB
              balance 0.00
      Base Volume: 65536 / 100% / 0.00 dB
      Monitor of Sink: alsa_output.pci-0000_01_00.1.hdmi-stereo
      Latency: 0 usec, configured 0 usec
      Flags: DECIBEL_VOLUME LATENCY 
      Properties:
              device.description = "Monitor of GK104 HDMI Audio Controller Digital Stereo (HDMI)"
              device.class = "monitor"
              alsa.card = "1"
              alsa.card_name = "HDA NVidia"
              alsa.long_card_name = "HDA NVidia at 0xec080000 irq 17"
              alsa.driver_name = "snd_hda_intel"
              device.bus_path = "pci-0000:01:00.1"
              sysfs.path = "/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1"
              device.bus = "pci"
              device.vendor.id = "10de"
              device.vendor.name = "NVIDIA Corporation"
              device.product.id = "0e0a"
              device.product.name = "GK104 HDMI Audio Controller"
              device.string = "1"
              module-udev-detect.discovered = "1"
              device.icon_name = "audio-card-pci"
      Formats:
              pcm

Source #1
      State: SUSPENDED
      Name: alsa_output.pci-0000_00_1b.0.analog-stereo.monitor
      Description: Monitor of Built-in Audio Analog Stereo
      Driver: module-alsa-card.c
      Sample Specification: s16le 2ch 44100Hz
      Channel Map: front-left,front-right
      Owner Module: 7
      Mute: no
      Volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 65536 / 100% / 0.00 dB
              balance 0.00
      Base Volume: 65536 / 100% / 0.00 dB
      Monitor of Sink: alsa_output.pci-0000_00_1b.0.analog-stereo
      Latency: 0 usec, configured 0 usec
      Flags: DECIBEL_VOLUME LATENCY 
      Properties:
              device.description = "Monitor of Built-in Audio Analog Stereo"
              device.class = "monitor"
              alsa.card = "0"
              alsa.card_name = "HDA Intel PCH"
              alsa.long_card_name = "HDA Intel PCH at 0xec310000 irq 33"
              alsa.driver_name = "snd_hda_intel"
              device.bus_path = "pci-0000:00:1b.0"
              sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
              device.bus = "pci"
              device.vendor.id = "8086"
              device.vendor.name = "Intel Corporation"
              device.product.id = "8c20"
              device.product.name = "8 Series/C220 Series Chipset High Definition Audio Controller"
              device.form_factor = "internal"
              device.string = "0"
              module-udev-detect.discovered = "1"
              device.icon_name = "audio-card-pci"
      Formats:
              pcm

Source #2
      State: SUSPENDED
      Name: alsa_input.pci-0000_00_1b.0.analog-stereo
      Description: Built-in Audio Analog Stereo
      Driver: module-alsa-card.c
      Sample Specification: s16le 2ch 44100Hz
      Channel Map: front-left,front-right
      Owner Module: 7
      Mute: no
      Volume: front-left: 32845 /  50% / -18.00 dB,   front-right: 32845 /  50% / -18.00 dB
              balance 0.00
      Base Volume: 20724 /  32% / -30.00 dB
      Monitor of Sink: n/a
      Latency: 0 usec, configured 0 usec
      Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
      Properties:
              alsa.resolution_bits = "16"
              device.api = "alsa"
              device.class = "sound"
              alsa.class = "generic"
              alsa.subclass = "generic-mix"
              alsa.name = "ALC892 Analog"
              alsa.id = "ALC892 Analog"
              alsa.subdevice = "0"
              alsa.subdevice_name = "subdevice #0"
              alsa.device = "0"
              alsa.card = "0"
              alsa.card_name = "HDA Intel PCH"
              alsa.long_card_name = "HDA Intel PCH at 0xec310000 irq 33"
              alsa.driver_name = "snd_hda_intel"
              device.bus_path = "pci-0000:00:1b.0"
              sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
              device.bus = "pci"
              device.vendor.id = "8086"
              device.vendor.name = "Intel Corporation"
              device.product.id = "8c20"
              device.product.name = "8 Series/C220 Series Chipset High Definition Audio Controller"
              device.form_factor = "internal"
              device.string = "front:0"
              device.buffering.buffer_size = "65536"
              device.buffering.fragment_size = "32768"
              device.access_mode = "mmap+timer"
              device.profile.name = "analog-stereo"
              device.profile.description = "Analog Stereo"
              device.description = "Built-in Audio Analog Stereo"
              alsa.mixer_name = "Realtek ALC892"
              alsa.components = "HDA:10ec0892,15580379,00100302"
              module-udev-detect.discovered = "1"
              device.icon_name = "audio-card-pci"
      Ports:
              analog-input-internal-mic: Internal Microphone (priority: 8900)
              analog-input-mic: Microphone (priority: 8700, not available)
              analog-input-linein: Line In (priority: 8100, not available)
      Active Port: analog-input-internal-mic
      Formats:
              pcm

VINNY

[oshunluvr]

Thanks Vinny, I actually think it's a kernel confliction with the driver. I did a new KDEneon install and audio works with nouveau and no crashing. I'm using 4.10 but the newest KDEneon ISO uses 4.8.

[oshunluvr]

Ok, so I got tired of the nouveau driver always heating up my CPU so I rolled up my sleeves. I installed 5 kernels and went back to the nvidia driver but I started at 340 series. The first try: Kernel 4.10.0-27-generic and nvidia-340.102 and the audio worked!

So I guess I'll just stick to the older driver until something else makes me change.