Lenovo ThinkBook 13x Gen 4 Intel Core Ultra 7 155U USB Hub Not Working Fix

The Lenovo ThinkBook 13x Gen 4 is a compact business laptop with a limited port selection, making USB hubs and docking accessories essential for many users. When a connected USB hub stops working — devices connected to the hub are not detected, or the hub itself is not recognized — it can disconnect keyboards, mice, storage drives, and other peripherals simultaneously.

This guide covers the most effective fixes for USB hub not working on the Lenovo ThinkBook 13x Gen 4 with the Intel Core Ultra 7 155U processor.

Why the USB Hub Is Not Working

• USB hub requires more power than the USB-C port provides
• USB selective suspend cutting power to the hub
• Chipset or USB controller driver not updated
• Hub using USB 2.0 protocol not compatible with the USB4 port
• Hub firmware issue affecting device enumeration

Step-by-Step Fixes

Fix 1: Use a Powered USB Hub

Bus-powered hubs (those without their own power adapter) rely entirely on the laptop port for power. When connecting multiple devices, the total power demand may exceed what the ThinkBook 13x Gen 4 USB-C port provides. Use a self-powered hub with its own AC power adapter to eliminate this as a cause.

Fix 2: Disable USB Selective Suspend

Windows may power off USB hubs during periods of inactivity:

1. Open Control Panel > Power Options and click Change plan settings.
2. Click Change advanced power settings.
3. Expand USB settings > USB selective suspend setting.
4. Set both On battery and Plugged in to Disabled.
5. Click OK and unplug and replug the hub.

Fix 3: Update the Intel USB Controller Driver

The Intel chipset USB controller driver manages USB port behavior on Core Ultra platforms:

1. Open Device Manager and expand Universal Serial Bus controllers.
2. Right-click each Intel USB controller entry and select Update driver.
3. Also download the Intel Chipset Device Software from the Lenovo Support page for the ThinkBook 13x Gen 4 and install it.
4. Restart and test the hub.

“Replacing the bus-powered hub with one that has its own power brick fixed all the intermittent disconnections. The ThinkBook 13x port simply could not supply enough current for four devices at once.”
— Shahrizan, digital nomad

Fix 4: Plug the Hub into the USB4 Port Directly

The ThinkBook 13x Gen 4 has both a USB4 (USB-C) port and a regular USB-C port. Only the USB4 port provides full bandwidth and power for complex hub operation. Confirm you are plugging the hub into the port marked with a USB4 or Thunderbolt symbol.

Fix 5: Update the Hub Firmware

Some USB hubs have updatable firmware that fixes device enumeration issues. Check the hub manufacturer website for a firmware update tool. Follow their instructions to update the hub firmware and test detection afterward.

Frequently Asked Questions