Intel N5100 HDMI output has no sounds with any driver ! Found a fix ! Devs fix it.

[thxslo]

Hi,
this week I got a new miniPC with Intel N5100 inside. When I connected it to a 10 years old LG LCD via HDMI, the television had no sound! Windows did not create a new "HDMi sound device" in the Sound control panel / playback tab. With this TV nobody haven't had any sound issues to date. Sound always worked with an Nvidia graphics card ,a TV box from a cable provider, different laptops etc.
I'm lucky enough to have a hdmi-rca adapter through which sound worked, allowing me to find a solution.

Tests:
Latest windows 10 default drivers = no sound over HDMI
Latest windows 10 with drivers up to date(via Intel assistant manager & app for searching drivers) = no sound over HDMI
Latest windows 11 default drivers = no sound over HDMI
Latest windows 11 with drivers up to date(via Intel assistant manager & app for searching drivers) = no sound over HDMI

Monitor Asset Manager(MAM) EDID / CTA output :
- for full report check "MAM" files in attachment.
1. LG TV plugged-in -> SOUND NOT WORKING
EDID revision............ 1.3
CE audio data (formats supported)
-LPCM 2-channel, 20-bit at 32/44/48 kHz
CE speaker allocation data
-Channel configuration.... 2.0
-Front left/right......... Yes

2. HDMI TO RCA ADAPTER plugged-in -> SOUND WORKING
-EDID revision............ 1.3
CE audio data (formats supported)
-LPCM 2-channel, 16-bit at 48 kHz
CE speaker allocation data
-Channel configuration.... 2.0
-Front left/right......... Yes

Downloaded Service manual(PDF) for TV and compared CTA blocks (hex raw data) to what MAM program shows. There was no difference.
This way I knew  TV does not have a faulty EDID and something fails in Windows/drivers when TV represent itself with 20-bit CTA  extension audio block.

HOW I FIXED AUDIO :
1. Install CRU app : https://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU
2. In the "Extension blocks" section double click on first slot. For me it's CTA-861. New window will open.
3. In Data blocks section double click on "Audio formats" slot. New window will open.
4. Double click on LPCM line. New window will open
5. In Audio format window uncheck 20-bit & check 16-bit ! Press OK on all windows. CRU app will close
6. In the CRU zip file, run "restart64.exe". This will restart graphics driver. For me windows immediately detected new "HDMI Sound Device" and asked me if I want to set it as default playback device.

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Extra info:
After reloading graphics driver, CTA blocks had 2 changes:
1. Change in Header -Number of native DTDs: before it was set to 2 , now its 0
2. Change in audio data block that I did with CRU app.

I hope developers will see this post so people can get a proper fix.

[Jean_Intel]

Hello thxslo,

Thanks for posting on the Intel Communities. We are more than glad to help you with the issue with your graphics adapter.

We would like to further investigate this matter, and your reports are very important for this. Unfortunately, we are unable to open them as we are unable to open .rar files. Could you try resending the files individually or using a .zip file?

Also, we are glad to know that you found a solution to the issue.  Hopefully, it will help other community members. However, we would like to know if you would like to further troubleshoot your issue with us. Let us know if you would like to continue the support regarding this matter.

Best regards,

Jean O. 

Intel Customer Support Technician

[thxslo]

Hi Jean ,

i am happy to help. The only problem is that the computer is not at the location where I live, but several hours away. Every now and then I can connect via team viewer to PC. If the job would require to be physically at site , then I would really have to know everything. PS: If I could turn time into money, I would say that this problem already cost me more than PC 😃

- now attaching Zip ( MAM means Files exported with Monitor Asset Manager app from https://www.entechtaiwan.com/util/moninfo.shtm )

------------

Extra note: 

In the past this TV was used with Asus laptop with Celeron N2840 and had no issues with sound.

I believe that current drivers  are still the one ...

Intel HD graphics : v10.18.10.5161  from 6.8.2020

Intel display audio: v6.16.0.3154 from 9.9.2014

High Definition audio controller: v10.0.1904.1

High Definition audio device: v10.0.1904.264 from 9.5.2020

[thxslo]

I have no idea why my first reply is not visible. Is it possible that reply gets automatically deleted if .zip contains .bin file ? replying now now without bin files.

------------------------

Hi Jean ,

i am happy to help. The only problem is that the computer is not at the location where I live, but several hours away. Every now and then I can connect via team viewer to PC. If the job would require to be physically at site , then I would really have to know everything. PS: If I could turn time into money, I would say that this problem already cost me more than PC 😃

- now attaching Zip.
- MAM means files were exported with Monitor Asset Manager application from

Extra note: 

In the past this TV was used with Asus laptop with Celeron N2840 and had no issues with sound.

I believe that current drivers  are still the one ...

Intel HD graphics : v10.18.10.5161  from 6.8.2020

Intel display audio: v6.16.0.3154 from 9.9.2014

High Definition audio controller: v10.0.1904.1

High Definition audio device: v10.0.1904.264 from 9.5.2020

[Jean_Intel]

Hello thxslo,

We understand that the computer is not at your location and you are away. However, if you can move to the site, you can try the following:

• Test if the issue is present using another monitor.
• Try using another HDMI cable or another video port.
• It seems that you are using an HDMI to RCA adapter. Ensure that the connection is a straight cable, such as HDMI to HDMI; it is not recommended to use adapters.

Also, you can try performing a clean installation of the Graphics driver, installing the driver to the latest version available on the Intel® Graphics Driver 31.0.101.3790/31.0.101.2114. Based on the report you shared, your graphics driver is 30.0.101.1960. It is important to mention that installing this Intel generic graphics driver will overwrite any customized driver from your Computer Manufacturer (OEM). OEM drivers are handpicked, customized, and validated to resolve platform-specific issues, enable features and enhancements, and improve system stability. Intel generic graphics drivers are intended for testing, and we recommend using drivers from the system manufacturer (OEM).

Best regards,

Jean O. 

Intel Customer Support Technician

[Jean_Intel]

Hello thxslo,

We hope you are doing fine.

Were you able to check the previous post?

Let us know if you still need assistance.

Best regards, 

Jean O.  

Intel Customer Support Technician

[Temporary]

Hi, my account was bann-ed. Don't know what i did wrong in this my only thread.

I don't think I was clear enough at the beginning.

The issue is with non-smart LG TV. On another newer smart TV, sound worked normally.

Intel N5100 by default cannot output sound to LG TV with any driver : oem windows with drivers or even intel latest 31.0.101.2121 from March 2023 that i got via Intel assistant manager.

The only way to get sound with N5100 PC to LG TV is to use CRU app, uncheck 20bit and check 16 bit as I said in my first post.

Adapter was used only for troubleshooting. Now direct hdmi to hdmi connection is used.

It's kind of funny that so far every device has worked without a problem with this old TV. Even the Asus laptop with Celeron N2840 worked normally today with the drivers I mentioned in the previous post.

After the pointless ban, I don't even know why I'm still wasting time with this issue. I hope this thread will help other people with similar issue.
PS: This dude could have similar issue (LG, non smart, similar old resolution) https://community.intel.com/t5/Graphics/Intel-HD-630-no-HDMI-sound/td-p/1478890

[Alejandro_Hoyos]

Hi Jean!

Thxslo hasn't been able to reply to you since for some reason he has been banned for some reason. He is still checking updates while I figure out what is going here on why he got banned from the site and how we can get him reinstated. 

Please do not delete this post, we are still working on it.

Thanks

Alex H

Intel Tech Evangelist and Community Manager 

[Jean_Intel]

Hello @Temporary,

We understand the situation. We apologize for the delayed response. Unfortunately, we were not able to see your reply on your secondary account until just now.

We will investigate this situation and get back to you as soon as possible.

Best regards,

Jean O. 

Intel Customer Support Technician

[Jean_Intel]

Hello @Temporary,

We appreciate your patience.

Based on the fact that your system is working with newer TVs, we suggest that you get in touch with your TV manufacturer to address this issue.

Best regards,

Jean O.

Intel Customer Support Technician

[Jean_Intel]

Hello @Temporary,

We hope you are doing fine.

We have not heard back from you. So we will close this thread. If you need any additional information, submit a new question, as this thread will no longer be monitored.

Best regards.

Jean O. 

Intel Customer Support Technician.