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No sound from 3.5 mm jack on Series 3 Mini Dock

T430-T490, T530-T590 Series
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Garlic Bread
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No sound from 3.5 mm jack on Series 3 Mini Dock

#1 Post by Garlic Bread » Mon Feb 21, 2022 12:06 pm

I am trying to connect a pair of analog headphones to the 3.5 mm port of a Mini Dock Series 3, but no matter what I do they do not show up on the docked PC. The headphones work fine, they are picked up as they should when I plug them directly into the PCs in the dock, but there is no audio through the dock no matter what I do.

Is there a solution to this problem, or will I need to get a DAC?

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Re: No sound from 3.5 mm jack on Series 3 Mini Dock

#2 Post by dr_st » Mon Feb 21, 2022 12:50 pm

I recall such issues in the past. Make sure you have the correct drivers installed for your audio device and your operating system.

Is this happening on one particular laptop/dock, or did you try different laptops/docks?
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad

Garlic Bread
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Re: No sound from 3.5 mm jack on Series 3 Mini Dock

#3 Post by Garlic Bread » Mon Feb 21, 2022 2:41 pm

I have tried a number of combinations between three docks and five PCs running both Windows 7 and 10, and all PCs are fully up to date according to the Lenovo System Update. The issue however remains the same. I even tried a pair of old desktop speakers to check if the dock and the specific headphones in question was incompatible, but the speakers did not show up either.

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Re: No sound from 3.5 mm jack on Series 3 Mini Dock

#4 Post by RealBlackStuff » Tue Feb 22, 2022 12:25 am

According to Lenovo's 4337 overview:
ThinkPad L412, L512: ThinkPad Mini Dock Series 3 dock audio ports are inactive, ThinkPad audio ports are active.
ThinkPad L421 does not support ThinkPad Mini Dock Series 3.
ThinkPad Mini Dock Series 3: Does not support earlier ThinkPad models. Earlier ThinkPad models include: R60, R61, R400, R500, T60, T61, T400, T500, W500, Z60, Z61.
The ThinkPad Mini Dock Series 3 (433710U) is not compatible with the following notebook stands ( www.lenovo.com/support/stands ):
Lenovo Essential Notebook Stand
Lovely day for a Guinness! (The Real Black Stuff)
IBM: T23 (XP/SP3) - Lenovo: X240, X250, T440p, M900 Tiny (all with W7/SP1)

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Re: No sound from 3.5 mm jack on Series 3 Mini Dock

#5 Post by dr_st » Tue Feb 22, 2022 1:50 am

Three docks, five laptops, two operating systems and none of them work? That is quite bizarre.

Assuming the laptops are not all of the unsupported L series types (good catch, RBS!), are you absolutely sure you are plugging into the correct jack (green, not red)?
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad

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