01-07-2019 05:20 PM
Please try to upgrade the latest version with the following links:
USB-C dock driver-https://pcsupport.lenovo.com/us/zh/downloads/ds501902
01-08-2019 05:06 AM
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...
01-09-2019 06:30 AM
01-09-2019 02:23 PM
01-28-2019 09:29 AM
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
03-28-2019 09:51 PM - edited 03-28-2019 09:53 PM
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.
04-22-2019 08:17 AM - edited 04-22-2019 09:08 AM
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:
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.
04-23-2019 02:00 AM - edited 04-23-2019 04:51 AM
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.