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2 Posts

05-06-2020

United States of America

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Yoga C940 - Thunderbolt 3 Dock

2020-05-30, 11:07 AM

I have wanted to try the Lenovo product a several years now and finally made the purchase; i am starting to wonder about that decision. I work in IT. I run a couple of monitors using a Thunderbolt 3 dock. I am constantly running into issues with this unit working with this and one other dock I tried.

 

  1. when coming out of sleep mode, dock displays do not come up. I have to unplug the usb-c dock connector, wait then reconnect. only this or a reboot bring the monitors back.
  2. sound gets all mixed up between the dock usb speaker, internal speakers, external blue-tooth speaker or otherwise. I had a Zoom meeting the other day whereby the only way to hear and speak was to connect my headphones to allow my speakers to work.
  3. every now and again, the entire monitoring will go dark, then recover.

 

these issues are annoying as all hell. I have updated drivers, researched until my eyes bleed and now I am posting this. Any help and direction is greatly appreciated.

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41 Posts

02-21-2020

Switzerland

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Re:Yoga C940 - Thunderbolt 3 Dock

2020-05-30, 11:13 AM
Which Dock are you using? According to Lenovo, only very few dockong stations seem to be really and fully compatible with the C940'ies. Compare earlier threads, where docks are very thoroughly discussed.
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2 Posts

05-06-2020

United States of America

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Re:Yoga C940 - Thunderbolt 3 Dock

2020-05-31, 13:06 PM

thanks for responding ... I am using Lenovo USA ThinkPad Thunderbolt 3 Dock Gen 2 135W (40AN0135US). This was researched as compatible with my unit using this and other forums as reference. 

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