cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Mooz80
Fanfold Paper
Posts: 6
Registered: ‎01-07-2019
Location: CA
Views: 842
Message 21 of 29

Re: ThinkPad X1 Carbon 6th and ThinkPad USB-C Dock issues

Hi, 

I don't see anything newer than 1.34 on the update website. 

 

Did you change any other settings? 

 

Thanks

Lenovo Employee terrywang
Lenovo Employee
Posts: 37
Registered: ‎06-12-2018
Location: CN
Views: 837
Message 22 of 29

Re: ThinkPad X1 Carbon 6th and ThinkPad USB-C Dock issues

Mooz80
Fanfold Paper
Posts: 6
Registered: ‎01-07-2019
Location: CA
Views: 813
Message 23 of 29

Re: ThinkPad X1 Carbon 6th and ThinkPad USB-C Dock issues

Hi,

 

I made all the updates you provided, reboot the laptop and power cycle the dock and it's seems worst thant it was... I cannot get a stable connection for more than 1 minute now... 

Mooz80
Fanfold Paper
Posts: 6
Registered: ‎01-07-2019
Location: CA
Views: 786
Message 24 of 29

Re: ThinkPad X1 Carbon 6th and ThinkPad USB-C Dock issues

Hello,

 
Can't promised it's 100 percent related, but I noticed the following: 
 
Laptop was 90% charged when I got into the office
I plugged the dock and had the disconnection problem multiple times withing the first 2 minutes (happened like 5 times)
Then, for the next hour, the connection was pretty stable (dropped only once)
As soon as the laptop reached 100%, the connection dropped again. 
 
So, it really seems that there is an issue linked with the power supplied by the docking station.
aaron-p
Paper Tape
Posts: 8
Registered: ‎06-04-2018
Location: AU
Views: 762
Message 25 of 29

Re: ThinkPad X1 Carbon 6th and ThinkPad USB-C Dock issues

This still sounds like a driver issue.

When this was an issue for me I'd encounter it more when the laptop was charged to 100% and changing the maximum charge limit to 95% fixed it for a bit before the BIOS and driver updates.

If the updates aren't working then it might be a hardware issue, contact Lenovo support directly
bdwyertech-
Paper Tape
Posts: 1
Registered: ‎01-27-2019
Location: US
Views: 650
Message 26 of 29

Re: ThinkPad X1 Carbon 6th and ThinkPad USB-C Dock issues

Seeing the same issue on my P52s and a Pro dock... Unusable -- will try adjusting power settings to not charge past 95% and see if that helps.

 

FWIW, the issue has gotten worse with more recent firmwares on the P52s, I'm thinking post-December updates

Yaryar1
What's DOS?
Posts: 1
Registered: ‎03-28-2019
Location: US
Views: 342
Message 27 of 29

Re: ThinkPad X1 Carbon 6th and ThinkPad USB-C Dock issues

Try this. Get a usb to Usb C adaptor. Connect to a usb 2 port. This will force the dock to enumerate to USB 2.  The problem should go away.

 

the issue with this is you’ll need to power the pc with a power supply. Obviously this isn’t idea, but it is a workaround. 

Lenovo, can you please fix this issue. It seems to happen to 50% of our users.

 

Perezalvarezhi
What's DOS?
Posts: 1
Registered: ‎04-22-2019
Location: US
Views: 217
Message 28 of 29

Re: ThinkPad X1 Carbon 6th and ThinkPad USB-C Dock issues

Hello everyone I just got an X1 Extreme and it might be that i have to post a new issue since it is a different model (still is almost the same computer as the Carbon).

 

I started using the elgato USB C Thunderbolt dock with the same issues you guys list in here:

  • continuos disconnects from USB ports but not from video (this one has displayport)
  • Also the ethernet port on the dock disconnects
  • The charging stops
  • It disconnects with the USB disconnect sound and connects back after a second and makes the noise of connection.
    • i dont have keyboard, USB and ethernet for about 10 seconds each time
    • While writing this post it happened 3 times.

 

I have already followed this post's recomendations of updating driveres (for the extreme not the carbon) and after update it even seems like the problem is worse.

 

 

Anyone found a fix for this?

 

EDIT: The Only fix I have found is if I disable the Lenovo Vantage battery Throttling, but when it gets to 100% and stops charging it fails again.

 

WillemT2
Paper Tape
Posts: 2
Registered: ‎04-01-2019
Location: SE
Views: 179
Message 29 of 29

Re: ThinkPad X1 Carbon 6th and ThinkPad USB-C Dock issues

Exactly the same issue here, also with an X1 Extreme. I have now set the stop charging level to 95% to see if it changes anything. But reading how reaching 100% potentially causes it explains the power disconnect/connect messages I see in the Event Viewer every time the power cut happens.

 

Edit: Sadly the issue persists, even with the 95% max charge.

Check out current deals!


Shop current deals

Top Kudoed Authors