LM20.3 + NUC11PAHi7 = no sound over HDMI ?

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jerry_nz
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LM20.3 + NUC11PAHi7 = no sound over HDMI ?

Post by jerry_nz »

Hi there!

Long time lurker, first time poster... treat me nice!

I have a freshly installed Linux Mint 20.3 on my freshly bought Intel Nuc "NUC11PAHi7" and I'm moooostly set up. Last thing that has me boggled is getting sound to function over HDMI through my AV receiver.

My older nuc (Linux Mint 20.03 (?)) does this without drama so I can verify its something to do with the new set up and not the receiver.

I've tried a fair few suggestions from other posts already, but I have a feeling I might be missing the obvious this time.

I'm going to continue to debug over the next day or 12 but any tips are hugely appreciated, and please let me know if i can provide more info.

Thanks,
Jerry

----

Operating System: Linux Mint 20.3 Cinnamon
Cinnamon Version: 5.2.7
Linux Kernal: 5.11.0-46-generic
Processor: 11th Gen Intel Core i7-1165G7 @ 2.8GHz x 4
Graphics Card: Intel Corporation Device 9a49

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inxi -Fxxxrz

System:    Kernel: 5.11.0-46-generic x86_64 bits: 64 compiler: N/A Desktop: Cinnamon 5.2.7 wm: muffin 5.2.0 
           dm: LightDM 1.30.0 Distro: Linux Mint 20.3 Una base: Ubuntu 20.04 focal 
Machine:   Type: Mini-pc System: Intel Client Systems product: NUC11PAHi7 v: M15513-303 serial: <filter> 
           Chassis: Intel Corporation type: 35 v: 2.0 serial: <filter> 
           Mobo: Intel model: NUC11PABi7 v: K90104-302 serial: <filter> UEFI: Intel 
           v: PATGL357.0035.2020.1113.1353 date: 11/13/2020 
CPU:       Topology: Quad Core model: 11th Gen Intel Core i7-1165G7 bits: 64 type: MT MCP arch: Tiger Lake rev: 1 
           L2 cache: 12.0 MiB 
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 44851 
           Speed: 1273 MHz min/max: 400/4700 MHz Core speeds (MHz): 1: 1273 2: 1942 3: 1300 4: 1266 5: 2061 
           6: 1305 7: 1253 8: 1301 
Graphics:  Device-1: Intel driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:9a49 
           Display: x11 server: X.Org 1.20.13 driver: modesetting unloaded: fbdev,vesa resolution: 1920x1080~60Hz 
           OpenGL: renderer: Mesa Intel Xe Graphics (TGL GT2) v: 4.6 Mesa 21.0.3 direct render: Yes 
Audio:     Device-1: Intel driver: snd_hda_intel v: kernel bus ID: 00:1f.3 chip ID: 8086:a0c8 
           Sound Server: ALSA v: k5.11.0-46-generic 
Network:   Device-1: Intel driver: iwlwifi v: kernel port: 3000 bus ID: 00:14.3 chip ID: 8086:a0f0 
           IF: wlo1 state: down mac: <filter> 
           Device-2: Intel driver: igc v: kernel port: efa0 bus ID: 59:00.0 chip ID: 8086:15f3 
           IF: enp89s0 state: up speed: 1000 Mbps duplex: full mac: <filter> 
Drives:    Local Storage: total: 465.76 GiB used: 182.24 GiB (39.1%) 
           ID-1: /dev/nvme0n1 vendor: Seagate model: FireCuda 530 ZP500GM30013 size: 465.76 GiB speed: 63.2 Gb/s 
           lanes: 4 serial: <filter> rev: SU6SM001 scheme: GPT 
Partition: ID-1: / size: 456.96 GiB used: 182.23 GiB (39.9%) fs: ext4 dev: /dev/nvme0n1p2 
Sensors:   System Temperatures: cpu: 39.0 C mobo: 39.0 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/google-chrome.list 
           1: deb [arch=amd64] https://dl.google.com/linux/chrome/deb/ stable main
           Active apt repos in: /etc/apt/sources.list.d/mono-official-stable.list 
           1: deb https://download.mono-project.com/repo/ubuntu stable-focal main
           Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
           1: deb http://ucmirror.canterbury.ac.nz/linux/mint/packages una main upstream import backport
           2: deb http://mirror.fsmg.org.nz/ubuntu focal main restricted universe multiverse
           3: deb http://mirror.fsmg.org.nz/ubuntu focal-updates main restricted universe multiverse
           4: deb http://mirror.fsmg.org.nz/ubuntu 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
           No active apt repos in: /etc/apt/sources.list.d/plexmediaserver.list 
           Active apt repos in: /etc/apt/sources.list.d/sonarr.list 
           1: deb https://apt.sonarr.tv/ubuntu focal main
           Active apt repos in: /etc/apt/sources.list.d/spotify.list 
           1: deb http://repository.spotify.com stable non-free
           Active apt repos in: /etc/apt/sources.list.d/transmissionbt-ppa-focal.list 
           1: deb http://ppa.launchpad.net/transmissionbt/ppa/ubuntu focal main
Info:      Processes: 300 Uptime: 20m Memory: 30.99 GiB used: 2.17 GiB (7.0%) Init: systemd v: 245 runlevel: 5 
           Compilers: gcc: 9.3.0 alt: 9 Shell: bash v: 5.0.17 running in: gnome-terminal inxi: 3.0.38
-

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

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  2093  100  2093    0     0   2171      0 --:--:-- --:--:-- --:--:--  2168

https://termbin.com/lne0
-

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pacmd list-cards

1 card(s) available.
    index: 0
	name: <alsa_card.pci-0000_00_1f.3>
	driver: <module-alsa-card.c>
	owner module: 7
	properties:
		alsa.card = "0"
		alsa.card_name = "HDA Intel PCH"
		alsa.long_card_name = "HDA Intel PCH at 0x603d1a0000 irq 191"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:1f.3"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
		device.bus = "pci"
		device.vendor.id = "8086"
		device.vendor.name = "Intel Corporation"
		device.product.id = "a0c8"
		device.form_factor = "internal"
		device.string = "0"
		device.description = "Built-in Audio"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	profiles:
		input:analog-stereo: Analog Stereo Input (priority 32833, available: unknown)
		output:analog-stereo: Analog Stereo Output (priority 6500, available: no)
		output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6565, available: unknown)
		output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 38668, available: unknown)
		output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Analog Stereo Input (priority 38733, available: unknown)
		output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 33568, available: unknown)
		output:hdmi-surround+input:analog-stereo: Digital Surround 5.1 (HDMI) Output + Analog Stereo Input (priority 33633, available: unknown)
		output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 33568, available: unknown)
		output:hdmi-surround71+input:analog-stereo: Digital Surround 7.1 (HDMI) Output + Analog Stereo Input (priority 33633, available: unknown)
		output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5700, available: no)
		output:hdmi-stereo-extra1+input:analog-stereo: Digital Stereo (HDMI 2) Output + Analog Stereo Input (priority 5765, available: unknown)
		output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 600, available: no)
		output:hdmi-surround-extra1+input:analog-stereo: Digital Surround 5.1 (HDMI 2) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 600, available: no)
		output:hdmi-surround71-extra1+input:analog-stereo: Digital Surround 7.1 (HDMI 2) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5700, available: no)
		output:hdmi-stereo-extra2+input:analog-stereo: Digital Stereo (HDMI 3) Output + Analog Stereo Input (priority 5765, available: unknown)
		output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 600, available: no)
		output:hdmi-surround-extra2+input:analog-stereo: Digital Surround 5.1 (HDMI 3) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 600, available: no)
		output:hdmi-surround71-extra2+input:analog-stereo: Digital Surround 7.1 (HDMI 3) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (priority 5700, available: no)
		output:hdmi-stereo-extra3+input:analog-stereo: Digital Stereo (HDMI 4) Output + Analog Stereo Input (priority 5765, available: unknown)
		output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (priority 600, available: no)
		output:hdmi-surround-extra3+input:analog-stereo: Digital Surround 5.1 (HDMI 4) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (priority 600, available: no)
		output:hdmi-surround71-extra3+input:analog-stereo: Digital Surround 7.1 (HDMI 4) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (priority 5700, available: no)
		output:hdmi-stereo-extra4+input:analog-stereo: Digital Stereo (HDMI 5) Output + Analog Stereo Input (priority 5765, available: unknown)
		output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) Output (priority 600, available: no)
		output:hdmi-surround-extra4+input:analog-stereo: Digital Surround 5.1 (HDMI 5) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) Output (priority 600, available: no)
		output:hdmi-surround71-extra4+input:analog-stereo: Digital Surround 7.1 (HDMI 5) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-stereo-extra5: Digital Stereo (HDMI 6) Output (priority 5700, available: no)
		output:hdmi-stereo-extra5+input:analog-stereo: Digital Stereo (HDMI 6) Output + Analog Stereo Input (priority 5765, available: unknown)
		output:hdmi-surround-extra5: Digital Surround 5.1 (HDMI 6) Output (priority 600, available: no)
		output:hdmi-surround-extra5+input:analog-stereo: Digital Surround 5.1 (HDMI 6) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-surround71-extra5: Digital Surround 7.1 (HDMI 6) Output (priority 600, available: no)
		output:hdmi-surround71-extra5+input:analog-stereo: Digital Surround 7.1 (HDMI 6) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-stereo-extra6: Digital Stereo (HDMI 7) Output (priority 5700, available: no)
		output:hdmi-stereo-extra6+input:analog-stereo: Digital Stereo (HDMI 7) Output + Analog Stereo Input (priority 5765, available: unknown)
		output:hdmi-surround-extra6: Digital Surround 5.1 (HDMI 7) Output (priority 600, available: no)
		output:hdmi-surround-extra6+input:analog-stereo: Digital Surround 5.1 (HDMI 7) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-surround71-extra6: Digital Surround 7.1 (HDMI 7) Output (priority 600, available: no)
		output:hdmi-surround71-extra6+input:analog-stereo: Digital Surround 7.1 (HDMI 7) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-stereo-extra7: Digital Stereo (HDMI 8) Output (priority 5700, available: no)
		output:hdmi-stereo-extra7+input:analog-stereo: Digital Stereo (HDMI 8) Output + Analog Stereo Input (priority 5765, available: unknown)
		output:hdmi-surround-extra7: Digital Surround 5.1 (HDMI 8) Output (priority 600, available: no)
		output:hdmi-surround-extra7+input:analog-stereo: Digital Surround 5.1 (HDMI 8) Output + Analog Stereo Input (priority 665, available: unknown)
		output:hdmi-surround71-extra7: Digital Surround 7.1 (HDMI 8) Output (priority 600, available: no)
		output:hdmi-surround71-extra7+input:analog-stereo: Digital Surround 7.1 (HDMI 8) Output + Analog Stereo Input (priority 665, available: unknown)
		off: Off (priority 0, available: unknown)
	active profile: <output:hdmi-surround>
	sinks:
		alsa_output.pci-0000_00_1f.3.hdmi-surround/#2: Built-in Audio Digital Surround 5.1 (HDMI)
	sources:
		alsa_output.pci-0000_00_1f.3.hdmi-surround.monitor/#3: Monitor of Built-in Audio Digital Surround 5.1 (HDMI)
	ports:
		analog-input: Analog Input (priority 10000, latency offset 0 usec, available: unknown)
			properties:
				
		analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-headphones"
		hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "video-display"
				device.product.name = "AV Receiver"
		hdmi-output-1: HDMI / DisplayPort 2 (priority 5800, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
		hdmi-output-2: HDMI / DisplayPort 3 (priority 5700, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
		hdmi-output-3: HDMI / DisplayPort 4 (priority 5600, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
		hdmi-output-4: HDMI / DisplayPort 5 (priority 5500, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
		hdmi-output-5: HDMI / DisplayPort 6 (priority 5400, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
		hdmi-output-6: HDMI / DisplayPort 7 (priority 5300, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
		hdmi-output-7: HDMI / DisplayPort 8 (priority 5200, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"
-

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pacmd list-sinks

1 sink(s) available.
  * index: 2
	name: <alsa_output.pci-0000_00_1f.3.hdmi-surround>
	driver: <module-alsa-card.c>
	flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
	state: RUNNING
	suspend cause: (none)
	priority: 9030
	volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 65536 / 100% / 0.00 dB,   rear-left: 65536 / 100% / 0.00 dB,   rear-right: 65536 / 100% / 0.00 dB,   front-center: 65536 / 100% / 0.00 dB,   lfe: 65536 / 100% / 0.00 dB
	        balance 0.00
	base volume: 65536 / 100% / 0.00 dB
	volume steps: 65537
	muted: no
	current latency: 37.08 ms
	max request: 20 KiB
	max rewind: 20 KiB
	monitor source: 3
	sample spec: s16le 6ch 44100Hz
	channel map: front-left,front-right,rear-left,rear-right,front-center,lfe
	             Surround 5.1
	used by: 1
	linked by: 3
	configured latency: 40.00 ms; range is 0.50 .. 2000.00 ms
	card: 0 <alsa_card.pci-0000_00_1f.3>
	module: 7
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "HDMI 0"
		alsa.id = "HDMI 0"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "3"
		alsa.card = "0"
		alsa.card_name = "HDA Intel PCH"
		alsa.long_card_name = "HDA Intel PCH at 0x603d1a0000 irq 191"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:1f.3"
		sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
		device.bus = "pci"
		device.vendor.id = "8086"
		device.vendor.name = "Intel Corporation"
		device.product.id = "a0c8"
		device.form_factor = "internal"
		device.string = "hdmi:0"
		device.buffering.buffer_size = "1058400"
		device.buffering.fragment_size = "529200"
		device.access_mode = "mmap+timer"
		device.profile.name = "hdmi-surround"
		device.profile.description = "Digital Surround 5.1 (HDMI)"
		device.description = "Built-in Audio Digital Surround 5.1 (HDMI)"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	ports:
		hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "video-display"
				device.product.name = "AV Receiver"
	active port: <hdmi-output-0>
-

and lastly, an image showing that sound seems to be "working" (the bottom most green bar is pumping up and down with the music i'm playing) but obviously... nothing being passed through HDMI:
Image
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
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rossdv8
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Re: LM20.3 + NUC11PAHi7 = no sound over HDMI ?

Post by rossdv8 »

What shows up when you click the 'Output Devices' Tab?

The Top item there should be the one for HDMI.
Check that it is in fact showing something like 'HDMI / Display Port (plugged in) and that the Volume slider is up around the 100% mark. Also that the little Speaker symbol (next to the Padlock) is not Muted.

Then also check the Configuration Tab to see that the Top item there says something like:
Built-in audio
Profile: Digital Stereo (HDMI Output)

If it does not, look for a HDMI option in the drop down list that DOES NOT show as '(unavailable)'.
Current main OS: MInt 21.3 with KDE Plasma 5.27 (using Compiz as WM) - Kernel: 6.5.0-15 on Lenovo m900 Tiny, i5-6400T (intel HD 530 graphics) 16GB RAM.
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jerry_nz
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Re: LM20.3 + NUC11PAHi7 = no sound over HDMI ?

Post by jerry_nz »

Oh nice thanks, I will have a look tonight and report back.

Thanks for the quick reply!
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Re: LM20.3 + NUC11PAHi7 = no sound over HDMI ?

Post by jerry_nz »

ok, snuck on to the machine and nabbed the info. Apologies for the screengrabs but its easier than my interpretive dancing!

I haven't had a chance to debug further unfortunately. Hopefully get a chance in the coming days.

Please keep the suggestions coming.




rossdv8 wrote: ⤴Sat Jan 22, 2022 7:11 am What shows up when you click the 'Output Devices' Tab?

The Top item there should be the one for HDMI.
Check that it is in fact showing something like 'HDMI / Display Port (plugged in) and that the Volume slider is up around the 100% mark. Also that the little Speaker symbol (next to the Padlock) is not Muted.
Image
I think that all looks ok to me. And the drop down has no other options except 'HDMI/DisplayPort (plugged in)

rossdv8 wrote: ⤴Sat Jan 22, 2022 7:11 am Then also check the Configuration Tab to see that the Top item there says something like:
Built-in audio
Profile: Digital Stereo (HDMI Output)
Image
this also kinda looks ok to me as well :/

and the options in here look like this:
Image
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Re: LM20.3 + NUC11PAHi7 = no sound over HDMI ?

Post by jerry_nz »

did a little further testing...

i plugged the hdmi directly into the tv (by-passing the av-receiver) and after a reboot successfully got sound coming out there.

my thoughts now are:
-- phew, i dont have a busted NUC computer
-- does linux mint have problems sending audio signals to receivers generally?
-- are my settings on the receiver some how not ok with this newer linux box (but somehow ok with my older one)

the thick plottens, and i will do some more testing tomorrow or the next day

thanks
jerry
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Re: LM20.3 + NUC11PAHi7 = no sound over HDMI ?

Post by rossdv8 »

It's probably obvious and you probably tried it already, but there are a lot of options with HDMI Output in that list that do NOt have (unavailable) next to them.
I imagine you tried each of those with the HDMI cable plugged into the AV receiver - just to see if one of them makes noise?

Were they all playing the 'Sound of Silence"?
Current main OS: MInt 21.3 with KDE Plasma 5.27 (using Compiz as WM) - Kernel: 6.5.0-15 on Lenovo m900 Tiny, i5-6400T (intel HD 530 graphics) 16GB RAM.
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Re: LM20.3 + NUC11PAHi7 = no sound over HDMI ?

Post by jerry_nz »

hahaaa - will double check my Simon & Garfunkel soundtracks to be sure!

and I am pretty confident i tried all those options, but will defo give it another go through. I rarely trust myself with this stuff!
Currently I'm assuming that since the system thinks its playing, it may be an external issue rather than the machine itself.

With that in mind I've been reading up on Onkyo receiver issues to do with HDMI and it does seem there are some. So when I'm back I'll be trying some of them also.

If i stumble upon the answer I will certainly be replying!

cheers ears
jerry
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Re: LM20.3 + NUC11PAHi7 = no sound over HDMI ?

Post by jerry_nz »

aaaand nope, still stuck :(

I tested every output there was in 'pavucontrol' without anything changing. I also tried powering off the receiver completely (ie switched off at the wall for 30+ seconds) without success

I also tried a later linux kernal, but still no luck (from 5.11.0-46-generic to 5.13.0-28-generic)

I'm thinking I've nearly exhausted all my trouble shooting for this issue and got myself an expensive soundless brick :(

Left field question: I did my original set up and install of this machine when it was connected to a pc monitor that has no sound... would that have affected things some how? Not grabbed the correct drivers/installs?

And next odd question: if i wanted to downgrade Linux Mint to the version that is working on my other Nuc, is that asking for trouble and/or recommended?

Grasping at straws,
Jerry
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Re: LM20.3 + NUC11PAHi7 = no sound over HDMI ?

Post by jerry_nz »

somehow i missed this page:
viewtopic.php?f=48&t=363010

will start going through that now
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Re: LM20.3 + NUC11PAHi7 = no sound over HDMI ?

Post by jerry_nz »

hmmm negatives all round :(

and daaaamn I'm thankful for timeshift! started getting full lockups and/or reboots after a minute or so of a reboot. Or this:
Image
followed by other nasty similar glitches

managed to timeshift back to yesterday :mrgreen:

I feel like I've exhausted all of the machines possibilities (but still super happy to run tests or provide info!) and will move on to a full factory reset of the av-receiver.

#gulp

and for the record i tried tonight:
-- kernal to 5.13 (I think that was what started my glitching)
-- bios update
-- followed these suggestions: http://mreen.epizy.com/SoundFixTips.html?i=2
-- and these suggestions: http://mreen.epizy.com/SoundFixTips2.html?i=1
-- and then a timeshift back to yesterday
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Re: LM20.3 + NUC11PAHi7 = no sound over HDMI ?

Post by jerry_nz »

howdy, my google-fu is letting me down...

i have a work friend helping me with some suggestions:
-- if i wanted to test 44khz pcm audio, how would i go about setting that in Linux?
-- should i be investigating HDCP handshakes at all?

Any help appreciated
Thanks!
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mmessa
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Re: LM20.3 + NUC11PAHi7 = no sound over HDMI ?

Post by mmessa »

I just wanted to reply and say I am in the exact same boat: NUC11PAHi7 LM 20.3, connected to a Denon AVR via HDMI with video but no sound. As with your setup, if I connect directly to my TV via HDMI sound works fine. So, the receiver is a key piece to the puzzle. That said, you and I have different receivers. I also was previously using this receiver with another machine running an older version of Linux Mint. But that was Nvidia hardware and this is Intel.

I'll add one twist to the mystery. If I connect the NUC to the TV and get sound working, then without rebooting, connect the NUC via HDMI to my receiver, video and sound will continue to work until the next reboot. The opposite is also true. If I start with my NUC connected to the receiver and have no sound, if I hot-swap the HDMI directly to the TV I do not have sound until I either restart ALSA or reboot. This seems to tell me the issue is Linux-side and related to the audio system initialization process. I like your idea of it being related to HDCP.

How old is your receiver? Mine is circa 2009. For what its worth, my use case is to use the NUC as a headless audio server with remote control via nomachine or maybe operate as a Pulse Audio sink. So, figuring this out is very important to me to say the least. I guess my point with saying that is I am motivated to help. If you have suggestions for diagnostics I could run.

So far I have updated to the latest kernel available on the update manager:
Linux nuc 5.13.0-28-generic #31~20.04.1-Ubuntu SMP Wed Jan 19 14:08:10 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

And also flashed Intels latest BIOS: BIOS Update [PATGL357] 2/1/2022.

I'm new to this forum, but not Linux. I love Mint. Thanks in advance for everyone's help on this matter.
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jerry_nz
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Re: LM20.3 + NUC11PAHi7 = no sound over HDMI ?

Post by jerry_nz »

iiiinteresting!

i actually stopped debugging as i realised a new tv was on the horizon for our family, so we'll just use the inbuilt apps for playing media. The problematic nuc will be relegated to the office and used to serve the data. It's definitely not a proper fix though...

I am watching with interest though, so please update here if you manage to fix the issue (also I'm noting the other very similar sounding bugs cropping up in the forum too)

cheers
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jerry_nz
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Re: LM20.3 + NUC11PAHi7 = no sound over HDMI ?

Post by jerry_nz »

oops and sorry, to answer your question:
mmessa wrote: ⤴Sun Feb 13, 2022 12:18 pm How old is your receiver? Mine is circa 2009.
Mine is a Onkyo TX-NR696 purchased December 2020
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