LMDE 2 - Lenovo T430 - mDisplayport to HDMI no audio

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ronaldtimmermann
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LMDE 2 - Lenovo T430 - mDisplayport to HDMI no audio

Post by ronaldtimmermann » Wed Mar 15, 2017 11:58 am

Hi there,
I'm running LMDE 2 on a Lenovo T430 laptop on current kernel: Debian 3.16.39-1+deb8u2

I'm trying to connect my laptop to an external screen via HDMI. As the T430 only comes equipped with a mini displayport, I've had to use a mini-displayport-HMDI-cable/adapter. The adapter supports sound as does the mini Displayport on the T430. I have picture/video, but alas no sound. When right-clicking the sound-preferences tab I see no choices to choose other hardware than "Built-in Audio" choosing 'Digital Stereo (HDMI) output ..*' does nothing to provide sound.

Actually, now that I've toggled the 'Settings for the selected device' on 'Hardware' eventhough I toogle it back to 'Analog Stereo Output' the device figures as 'Disabled' and I get nothing but static through headphones.. 'Output' tab has 'Dummy Output Stereo' the choose..


What do I do next to solve this/these issue/s?

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AndyMH
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Re: LMDE 2 - Lenovo T430 - mDisplayport to HDMI no audio

Post by AndyMH » Thu Feb 01, 2018 4:58 pm

Not a solution, just to confirm I've got the same problem. T430 running 18.3 cinnamon. Just bought a new ultrawide LG monitor (mint is great at 2560x1080). Monitor only has HDMI input. T430 sat in a mini dock so connected with a displayport (full size not mini) to HDMI cable from the dock to the monitor. Mint can see it (see piccy), but when HDMI/displayport selected no sound comes out. Searching the web yielded nothing of value (and all windows related).

Not overly concerned as the sound out of my bluetooth speakers is probably better than whatever is built into the monitor, but a niggle. Anybody with the same problem and found a fix?
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AndyMH
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Re: LMDE 2 - Lenovo T430 - mDisplayport to HDMI no audio

Post by AndyMH » Tue Feb 13, 2018 5:28 pm

Update to my previous, now plugged in Dell laptop running win7 with a mini-displayport to hdmi cable connecting the monitor. Same problem, win can display on the external monitor, can see the speakers in the monitor, can connect to them, thinks it's playing sound to them, but no sound comes out.

So, it's not a mint problem, not even a T430 problem, maybe the problem is the displayport to HDMI? I'll try next with HDMI to HDMI, alas only on the Dell and win7 - no hdmi output on a T430.

Frazatto
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Re: LMDE 2 - Lenovo T430 - mDisplayport to HDMI no audio

Post by Frazatto » Sun Feb 18, 2018 2:36 pm

I had the same problem with my MacBook Air, fixed it by installing the correct graphics driver, in my case Nvidia.

But HDMI pin standards are a nightmare, maybe the "problem" is on the cable.........had to try 3 different adapters to make my VGA second monitor to work.

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