No sound from hdmi

[knoba]

I see output on the audio mixer (pavucontrol), with hdmi, but hear no sound.

Raspberry pi 4 (buster) with same hdmi cable, same monitor settings, the sound is great.

2 settings in bios [Internal speakers ~ en/dis*] & [Azalia ~ en*/dis], tried all combinations, no go. (* = current setting)

Tried with DVI & line out audio, output on the audio mixer, no sound.

Tried without much sucess:

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$ alsamixer -c PCH
$ sudo dmesg | grep HDMI
$ lspci | grep -i audio
$ cat /proc/asound/cards
$ aplay -l
$ pulseaudio -k && sudo alsa force-reload
$ speaker-test -c 2 -l 1 -D hw:0,0
$ pavucontrol
$ sudo dmesg | grep Azalia

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knoba@Z820 ~ $ inxi -Fxxxrz
System:
  Kernel: 5.4.0-88-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 
  Desktop: Xfce 4.16.0 tk: Gtk 3.24.20 info: xfce4-panel wm: xfwm4 
  dm: LightDM 1.30.0 Distro: Linux Mint 20.2 Uma base: Ubuntu 20.04 focal 
Machine:
  Type: Desktop System: Hewlett-Packard product: HP Z820 Workstation v: N/A 
  serial: <filter> Chassis: type: 6 serial: <filter> 
  Mobo: Hewlett-Packard model: 158B v: 1.01 serial: <filter> 
  UEFI: Hewlett-Packard v: J63 v03.96 date: 10/28/2019 
CPU:
  Topology: 2x 10-Core model: Intel Xeon E5-2670 v2 bits: 64 
  type: MT MCP SMP arch: Ivy Bridge rev: 4 L2 cache: 50.0 MiB 
  flags: avx lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 199583 
  Speed: 1198 MHz min/max: 1200/3300 MHz Core speeds (MHz): 1: 1208 2: 1203 
  3: 1339 4: 1495 5: 1497 6: 1495 7: 1402 8: 1403 9: 1402 10: 1398 11: 1397 
  12: 1397 13: 1197 14: 1207 15: 1269 16: 1198 17: 1198 18: 1251 19: 1197 
  20: 1197 21: 1197 22: 1197 23: 1197 24: 1238 25: 1436 26: 1623 27: 1405 
  28: 1619 29: 1520 30: 1468 31: 1468 32: 1397 33: 1397 34: 1397 35: 1416 
  36: 1365 37: 1333 38: 1198 39: 1197 40: 1198 
Graphics:
  Device-1: NVIDIA G94 [GeForce 9600 GSO 512] driver: nvidia v: 340.108 
  bus ID: 05:00.0 chip ID: 10de:0625 
  Display: x11 server: X.Org 1.20.11 driver: nvidia 
  unloaded: fbdev,modesetting,nouveau,vesa resolution: 1920x1080~60Hz 
  OpenGL: renderer: GeForce 9600 GSO 512/PCIe/SSE2 v: 3.3.0 NVIDIA 340.108 
  direct render: Yes 
Audio:
  Device-1: Intel C600/X79 series High Definition Audio 
  vendor: Hewlett-Packard driver: snd_hda_intel v: kernel bus ID: 00:1b.0 
  chip ID: 8086:1d20 
  Sound Server: ALSA v: k5.4.0-88-generic 
Network:
  Device-1: Intel 82579LM Gigabit Network vendor: Hewlett-Packard 
  driver: e1000e v: 3.2.6-k port: e040 bus ID: 00:19.0 chip ID: 8086:1502 
  IF: eno1 state: down mac: <filter> 
  Device-2: Intel 82574L Gigabit Network vendor: Hewlett-Packard 
  driver: e1000e v: 3.2.6-k port: d000 bus ID: 01:00.0 chip ID: 8086:10d3 
  IF: enp1s0 state: up speed: 100 Mbps duplex: full mac: <filter> 
Drives:
  Local Storage: total: 260.84 GiB used: 68.71 GiB (26.3%) 
  ID-1: /dev/sda vendor: Hitachi model: HDS721616PLA380 size: 149.05 GiB 
  speed: 1.5 Gb/s serial: <filter> rev: AB6A scheme: MBR 
  ID-2: /dev/sdb vendor: Kingston model: SA400S37120G size: 111.79 GiB 
  speed: 1.5 Gb/s serial: <filter> rev: 0002 scheme: MBR 
Partition:
  ID-1: / size: 99.73 GiB used: 8.43 GiB (8.5%) fs: ext3 dev: /dev/sdb5 
  ID-2: /home size: 145.71 GiB used: 60.27 GiB (41.4%) fs: ext3 
  dev: /dev/sda1 
  ID-3: swap-1 size: 9.76 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sdb6 
Sensors:
  System Temperatures: cpu: 27.0 C mobo: N/A gpu: nvidia temp: 40 C 
  Fan Speeds (RPM): N/A 
Repos:
  No active apt repos in: /etc/apt/sources.list 
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
  1: deb http://www.mirrorservice.org/sites/packages.linuxmint.com/packages uma main upstream import backport
  2: deb http://mirror.as29550.net/archive.ubuntu.com focal main restricted universe multiverse
  3: deb http://mirror.as29550.net/archive.ubuntu.com focal-updates main restricted universe multiverse
  4: deb http://mirror.as29550.net/archive.ubuntu.com focal-backports main restricted universe multiverse
  5: deb http://security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
  6: deb http://archive.canonical.com/ubuntu/ focal partner
Info:
  Processes: 488 Uptime: 6m Memory: 62.83 GiB used: 1.22 GiB (1.9%) 
  Init: systemd v: 245 runlevel: 5 Compilers: gcc: 9.3.0 alt: 9 Shell: bash 
  v: 5.0.17 running in: xfce4-terminal inxi: 3.0.38

Driver issue?

[MrEen]

Hi knoba, and welcome to the forum.

Let's get a look at your sound setup with this command:

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curl https://gitlab.freedesktop.org/pulseaudio/pulseaudio/raw/master/src/utils/pa-info?inline=false | bash | nc termbin.com 9999

The last line of output will have a URL pointing to the info. Pasting that URL is all I need.

[knoba]

Thank you for your welcome & help, MrEen!

Code: Select all

https://termbin.com/wuek3

That's a lot of interesting output...

[MrEen]

Okay, you've got zip showing for HDMI options. Look in your BIOS for video related stuff and see if maybe there's an audio setting within there.

[knoba]

Already been through the bios, nada, left that it is. Kept the hdmi cable & pcie GeForce.

Installed a pci sound blaster (line out), recognised, but again, no sound from monitor speakers but can see the sound levels fluctuating in pavucontrol.

Knocked the graphics driver back to Nouveau, from Nvidias', and bingo, sound at last! I can live with that.

Thanks for your time, MrEen!

[MrEen]

You're welcome.

A future update to the Nvidia driver should cure whatever the issue was, so you may want to check that periodically. Could be days, weeks or months away though.