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Chapter 3. Using the dock

This chapter provides instructions on how to use the connectors on the dock: 

•  “Using the headset and microphone combo connector” on page 9

•  “Using the Ethernet connector” on page 9

•  “Using the video output connectors” on page 10

The dock expands the connection capability of your computer. You can connect devices to the appropriate 
connectors on the dock after your computer is turned on. Normally it takes several seconds for the computer 
to recognize new devices.

The dock simplifies the connection between your computer and multiple devices. For example, you can 
connect the USB devices and external monitors to the dock rather than the computer. When you want to 
take your computer away, you can disconnect the computer from the dock rather than remove the USB 
devices and external monitors. When you come back, simply connect your computer to the dock to resume 
all previous connections and start working at once.

Using the headset and microphone combo connector

The headset and microphone combo connector on the dock is automatically enabled when you have 
successfully connected the dock to your computer and installed the device driver. However, if you cannot 
hear anything from the headset connected to the headset and microphone combo connector on the dock, 
you can manually enable the headset and microphone combo connector on the dock.

To manually enable the headset and microphone combo connector on the dock, do the following: 

1.  Right-click the speaker icon in the Windows notification area. A pop-up menu opens.

2.  Click 

Playback devices 

to select a USB audio line-out device, and then click the 

Recording 

tab to 

select a USB audio line-in device.

3.  Click 

OK

.

Note:

To apply the new settings, restart the applications that are using the audio devices.

Using the Ethernet connector

To use the Ethernet connector on the dock, connect the dock to a standard 10 Mbps, 100 Mbps, or 1000 
Mbps network.

There are two indicators on the top of the Ethernet connector.

Indicator activity

Working status of the dock

The right indicator stays on in green.

Connected to the Ethernet 

The left indicator keeps flashing in amber.

Transferring data

The Ethernet connection on the dock supports the following functions on some Lenovo computers. For the 
supported computer list, go to 

www.lenovo.com/accessoriesguide

and download 

Network function support 

– Option Compatibility Matrix

•  Preboot eXecution Environment

© Copyright Lenovo 2017, 2019

9

Summary of Contents for ThinkPad Thunderbolt 3

Page 1: ...ThinkPad Thunderbolt 3 Dock User Guide ...

Page 2: ... information in the documentation that comes with the product Fourth Edition March 2019 Copyright Lenovo 2017 2019 LIMITED AND RESTRICTED RIGHTS NOTICE If data or software is delivered pursuant to a General Services Administration GSA contract use reproduction or disclosure is subject to restrictions set forth in Contract No GS 35F 05925 ...

Page 3: ...ur computer 7 Uninstalling the device driver from Windows operating systems 8 Chapter 3 Using the dock 9 Using the headset and microphone combo connector 9 Using the Ethernet connector 9 Using the video output connectors 10 Extend mode 10 Mirror mode 11 Single display mode 11 Rotating the external monitor display 12 Setting the resolution of the external monitor 12 Chapter 4 Troubleshooting 13 App...

Page 4: ...ii ThinkPad Thunderbolt 3 Dock User Guide ...

Page 5: ...guring the dock on your computer Then you are ready to use the multiple devices each time you connect your computer to the dock The dock can also supply power to your computer when it is connected to the computer Your option package includes the following ThinkPad Thunderbolt 3 Dock Power adapter Power cord Thunderbolt 3 cable Warranty poster Contact your place of purchase if any item is missing o...

Page 6: ...er connector 16 Indicator in ThinkPad logo Notes Do not use the DP connector 12 and HDMI connector 13 at the same time For the wireless keyboard and mouse it is recommended that you connect the keyboard mouse USB receiver to the USB 3 0 connector 9 located above the VGA connector on the dock 1 Power button with indicator Power button When the dock is disconnected from the computer press the power ...

Page 7: ...ature Lenovo makes no comments judgments or warranties about the function quality or performance of the locking device and security feature 3 7 9 USB 3 0 connector Connect USB 3 0 compatible devices such as a USB storage device or a USB printer 4 Thunderbolt 3 connector Connect Thunderbolt 3 or USB C compatible devices to the dock such as a Thunderbolt 3 or USB C compatible external monitor or sto...

Page 8: ...tible device Supported external monitors two DP monitors an HDMI monitor a VGA monitor and a USB C monitor Supported operating system Windows 10 Network connection Gigabit Ethernet speed Supported functions on some Lenovo computers Preboot eXecution Environment PXE Media Access Control MAC address Pass Through Wake on LAN Notes For more information about these functions see Using the Ethernet conn...

Page 9: ...840 x 2160 pixels 30 Hz Thunderbolt 3 3840 x 2160 pixels 60 Hz DP2 HDMI and VGA DP2 HDMI 3840 x 2160 pixels 30 Hz VGA 1920 x 1200 pixels 60 Hz Thunderbolt 3 and VGA Thunderbolt 3 3840 x 2160 pixels 60 Hz VGA 1920 x 1200 pixels 60 Hz Three external monitors simultaneous DP1 DP2 HDMI and Thunderbolt 3 DP1 3840 x 2160 pixels 30 Hz DP2 HDMI 3840 x 2160 pixels 30 Hz and Thunderbolt 3 3840 x 2160 pixels...

Page 10: ...6 ThinkPad Thunderbolt 3 Dock User Guide ...

Page 11: ...on the screen to install the device driver Connecting the dock to your computer Note To enable the dock when connected to the computer for the first time do either of the following Confirm the change when prompted if you have the administrator privilege Enter the ThinkPad Setup program BIOS and go to the Config menu Select Thunderbolt TM 3 Security level No Security The dock will be enabled automa...

Page 12: ...t corner of the screen and then search Control Panel in the search box 2 Click Control Panel and then change the view of Control Panel to Category 3 Click Uninstall a program ThinkPad Thunderbolt 3 Dock USB Audio and then right click to select Uninstall 4 Click ThinkPad Thunderbolt 3 Dock Ethernet driver and then right click to select Uninstall 5 Follow the instructions on the screen to uninstall ...

Page 13: ...computer and installed the device driver However if you cannot hear anything from the headset connected to the headset and microphone combo connector on the dock you can manually enable the headset and microphone combo connector on the dock To manually enable the headset and microphone combo connector on the dock do the following 1 Right click the speaker icon in the Windows notification area A po...

Page 14: ...that comes with your computer Using the video output connectors The video output connectors on the dock include two DP connectors an HDMI connector a Thunderbolt connector and a VGA connector To use the video output connectors connect an external monitor to the connector on the dock using a corresponding cable The dock works in the following three video output modes Extend mode on page 10 Mirror m...

Page 15: ...e desktop move the pointer to the bottom left corner of the screen and then search Control Panel in the search box 2 Depending on your Control Panel mode do one of the following Click Display Change display settings Click Appearance and Personalization Display Change display settings 3 In the Multiple displays drop down list box select Duplicate these displays 4 Follow the instructions on the scre...

Page 16: ...nitor display remains the same as your computer monitor display Portrait The external monitor display rotates 90 degrees to the left Landscape flipped The external monitor display becomes upside down Portrait flipped The external monitor display rotates 90 degrees to the right 4 Follow the instructions on the screen to complete the setting Note You also can continually click Portrait or Portrait f...

Page 17: ...our mobile phone to the Always On USB 3 0 connector Disconnect the dock from the computer the charging speed might become faster 4 My mobile phones or other USB devices cannot be charged after I connect it to the Always On USB 3 0 connector It is recommended that you can disconnect the dock from the computer and then you can charge the mobile phones or other USB devices 5 The mouse and keyboard ca...

Page 18: ... external monitor and maximize the playback window the playback stops To solve the problem update your Adobe Flash Player program to the latest version 5 The external monitor display is blank or the images on the external monitor flutter Connect no more than three external monitors at a time Audio I cannot hear anything through my computer speakers or I cannot use the audio connectors on the compu...

Page 19: ...ensure that visually impaired users can read the documentation through a screen reader Each image in the documentation also includes adequate alternative text to explain the image so that visually impaired users can understand the image when they use a screen reader To open and view PDF files your computer must have the Adobe Reader program installed The Adobe Reader program also is available for ...

Page 20: ...16 ThinkPad Thunderbolt 3 Dock User Guide ...

Page 21: ...of Intel Corporation or its subsidiaries in the U S and or other countries The terms HDMI and HDMI High Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries DisplayPort is a trademark of the Video Electronics Standards Association All other trademarks are the property of their respective owners 2019 Lenovo Copyright ...

Page 22: ...18 ThinkPad Thunderbolt 3 Dock User Guide ...

Page 23: ......

Page 24: ...Part Number SP40M56890 Printed in China 1P P N SP40M56890 1PSP40M56890 ...

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