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01-07-2020

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X1 7th gen with Thinkpad Thunderbolt 3 Dock Gen. 2 - not enough power.

2020-01-07, 9:15 AM

I have a X1 7th (20QD) and a 40AN0135CH Thinkpad Thunderbolt 3 Dock Gen. 2. From time to time when I plug it into the docking station a message pops up saying that the dock does not provide enough power to charge, but it's the provided 135W charger hooked on to it. I can then shut down the laptop, press the reset button on the lower side of the device for 10s, denn boot up again and it works fine. What's a fix for that annoying behavior? I bought into the expensive lenovo ecosystem so I dont have to deal with annoying stuff like that, but here we are...
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05-02-2019

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Re: X1 7th gen with Thinkpad Thunderbolt 3 Dock Gen. 2 - not enough power.

2020-01-07, 12:56 PM

Hi !

 

Welcome to Lenovo Community Forums.

 

Try to download the specific driver for ThinkPad X1 Carbon 7th Gen, and download the Firmware for Windows 10 (64-bit) directly from our support website. Take note the Thunderbolt firmware in this dock can only be updated through a connected notebook and ensure the dock cable is connected to the proper Thunderbolt Type-C port when updating dock firmware.

 

Regards,



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1 Posts

01-07-2020

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Re: X1 7th gen with Thinkpad Thunderbolt 3 Dock Gen. 2 - not enough power.

2020-01-17, 7:08 AM

Hi

 

I need to pick up here again. I've updated the Firmware of the Dock as per your instruction, and it worked fine for some time. However, I still get weird behavior in combination with the Dock. Two days ago, when I plugged the X1 into the dock, it just didnt want to connect, I got it to connect by un- and replugging a couple of times. At some point though, it displayed that no battery was connected, the windows icon displayed 255% of battery left. When I went home, I shut down the laptop and left it in my bag. The next day, I used my laptop on battery, and the lenovo vantage symbol displayed a battery fill status of about 80%, the windows icon displayed an x saying no battery detected. I didnt use the laptop extensively, I put it into energy saver mode at about 70%. Some hours later in the evening I wanted to use it again, it only had 5% of battery left. I do that a lot, and generally it loses not that much in such a short time... I'm extremely annoyed, especially because my old T440p absolutely worked flawlessly.

 

any advice?

 

stefan

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01-07-2020

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Re: X1 7th gen with Thinkpad Thunderbolt 3 Dock Gen. 2 - not enough power.

2020-01-17, 21:51 PM

Right now the issues persist also when not in conjunction with a dock. Closing the lid puts the device into energy save mode. When I want to reuse the laptop again an hour later, the battery is not detected and the vantage battery symbol sais that the battery voltage is wrong.

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