05-10-2017 07:43 PM
Received the Thunderbolt 3 dock today, though the display works fine, the dock/laptop won't recognize any external USB devices such as mouse. keyboard, webcam, etc. I tried installing the latest drivers to no avail, from:
Anyone else havign this issue?
06-07-2017 02:40 AM
May not be a solution, but a tip nevertheless:
Had the same problem upon booting X1 Carbon. After first time login, a prompt from an Intel program called "Thunderbolt Software" popped up and asked to be run as administrator. Pressing "OK" at this prompt launched the Intel software where I could accept the Thunderbolt docking as an attached device. After this, I could attach mouse, keyboard and other peripherals.
Search for "Thunderbolt" after first boot in Windows 10. If nothing comes up, try to download "Thunderbolt Software" from Intel.
06-26-2017 09:14 AM
Hey thanks - this solved my issue with it. Not OP, but had a similar issue.
Also made some changes to the BIOS side according to this lenovo support page: https://support.lenovo.com/ca/en/solutions/ht503639 "How to configure the Thunderbolt 3 Security Level in BIOS Setup for Microsoft Windows operating system - ThinkPad". I just set the security level to 'no security' for now until I could get it working.
10-31-2017 07:57 AM
Having same issue: X1 Carbon Thunderbolt 3 Dock Not Recognizing USB Devices (mouse, keyboard etc..) after going to sleep, upon waking up - not able to get Mouse & Keyboard to wake up unless we reboot.
Using Win7-64bit on X1C5, Thunderbolt 3.
Tried BIOS Settings / for Thunderbolt 3 = set the security level to 'no security'. - Not successful.
10-31-2017 12:40 PM - edited 10-31-2017 01:19 PM
Thanks to Lenovo Rep - Andy A. who took time to visit us in (Cleveland, OH) today from Lenovo (Columbus, OH) - Much appriciated!
There are several things to look at, that can possibly fix the issue:
(Verify BIOS, Thunderbolt firmware and software are updated on X1C5 and older models):
X1C4/Dock1+ - Keyboard and mouse seemed to not wake up after sleep.
X1C5 / Thunderbolt 3 Dock – ALWAYS USE a 135w power supply and also when a Laptop is attached to a NEW or different Dock for the first time you will see a pop-up stating "NEW THUNDERBOLT devices have been attached" - click OK, Yes, Select "ALWAYS CONNECT".
Also see Lenovo's T-shooting Guide:
01-16-2018 06:00 PM
The BIOS config you mentioned for a Carbon X1 5th Gen DOES NOT ALLOW 512MB of Dedicated Video Memory.
To enable this amount of memory, the TB3 security needs to be on for "USB and DisplayPort"
With this enabled, the TB 3 DOCK USB ports and Ethernet DO NOT WORK.
LENOVO: Please Respond. Does the TB3 Dock WORK AS PROMISED with a Carbon X1 5th Gen, running 512MB of dedicated video memory? EVERY SINGLE PORT must work. Otherwise it's a useless "dock".
01-17-2018 05:23 AM
03-05-2018 02:12 PM