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Some Lenovo monitors may not work properly when attached via USB-C port - ThinkPad T480s

Some Lenovo monitors may not work properly when attached via USB-C port - ThinkPad T480s

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Some Lenovo monitors may not work properly when attached via USB-C port - ThinkPad T480s

Symptom

When attaching a Lenovo monitor via USB-C port to ThinkPad T480s, the monitor may not display content properly.

Applicable Brands

ThinkPad

Applicable Systems

ThinkPad T480s

System Is Configured With

  • Lenovo Legion Y27h-30
  • Lenovo Legion Y44w-10
  • ThinkVision T24m-10, T25m-10 and L27m-28
  • ThinkVision P44w-10

Operating Systems

Windows 10

Workaround

Update the BIOS / ECFW to the latest version.

If the issue still occurs after applying the latest BIOS/ECFW:

  1. Disable the UCSI device from Device Manager.
  2. Search and find Device Manager, expand USB connector section.
    Device Manager
  3. Right-click the device and select Disable device.
    Disable_UCSI
Document ID:HT514593
Original Publish Date:12/22/2022
Last Modified Date:10/03/2024
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