Operation Manual
Table Of Contents
- Important safety information
- Read this first
- Important information about using your computer
- Conditions that require immediate action
- Service and upgrades
- Power cords and power adapters
- Extension cords and related devices
- Plugs and outlets
- Power supply statement
- External devices
- General battery notice
- Notice for built-in rechargeable battery
- Notice for non-rechargeable coin-cell battery
- Heat and product ventilation
- Electrical current safety information
- Liquid crystal display (LCD) notice
- Using headphones or earphones
- Choking hazard notice
- Plastic bag notice
- Glass parts notice
- Chapter 1. Product overview
- Chapter 2. Using your computer
- Registering your computer
- Frequently asked questions
- Operating modes
- Using the multi-touch screen
- Using the special keys
- Using the ThinkPad pointing device
- Power management
- Cabled Ethernet connections
- Wireless connections
- Using audio features
- Using the cameras
- Using a media card
- Using an external display
- Traveling with your computer
- Chapter 3. Enhancing your computer
- Chapter 4. Accessibility, ergonomic, and maintenance information
- Chapter 5. Security
- Chapter 6. Advanced configuration
- Chapter 7. Troubleshooting computer problems
- General tips for preventing problems
- Diagnosing problems with Lenovo Companion
- Troubleshooting
- Computer stops responding
- Spills on the keyboard
- Error messages
- Beep errors
- Memory module problems
- Ethernet problems
- Wireless-LAN problem
- Bluetooth problem
- ThinkPad pointing device problems
- Keyboard problems
- Computer screen problems
- External monitor problems
- Audio problems
- Fingerprint reader problems
- Battery problems
- ac power adapter problem
- Power problems
- Power button problem
- Boot problems
- Sleep and hibernation problems
- Solid-state drive problem
- ThinkPad Pen Pro problem
- Software problem
- USB problem
- Chapter 8. Recovery information
- Chapter 9. Replacing devices
- Chapter 10. Getting support
- Appendix A. Supplemental information about the Ubuntu operating system
- Appendix B. Regulatory information
- Certification-related information
- Wireless-related information
- TCO certification
- Export classification notice
- Electronic emission notices
- Federal Communications Commission Declaration of Conformity
- Industry Canada Class B emission compliance statement
- European Union conformity
- German Class B compliance statement
- Japan VCCI Class B compliance statement
- Japan compliance statement for products which connect to the power mains with rated current less than or equal to 20 A per phase
- Japan notice for ac power cord
- Lenovo product service information for Taiwan
- Eurasian compliance mark
- Brazil audio notice
- Appendix C. WEEE and recycling statements
- Appendix D. Restriction of Hazardous Substances (RoHS) Directive
- Appendix E. ENERGY STAR model information
- Appendix F. Notices
- Appendix G. Trademarks
• Up to 4096 x 2160 pixels / 60 Hz, with an external display connected to the USB-C connector
For more information about the external display, see the manuals that come with it.
Connecting an external display
You can use either a wired display or a wireless display. The wired display can be connected to a video
connector such as the USB-C connector or HDMI connector by a cable. The external display connected to
the USB-C connector (the one that is close to the pen tether hole) and the external display connected to the
HDMI connector cannot be used simultaneously. The wireless display can be added through the Miracast
®
function.
•
Connecting a wired
display
Note: When you connect an external monitor, a video interface cable with a ferrite core is required.
1. Connect the external display to an appropriate video connector on your computer, such as the USB-
C connector or the HDMI
connector.
2.
Connect the external display to an electrical outlet.
3. Turn on the external display.
If your computer cannot detect the external display, right-click on the desktop, and then click Screen
resolution/Display settings ➙ Detect
.
• Connecting a wireless display
Note: To use a wireless display, ensure that both your computer and the external display support
the
Miracast feature.
Do one of the
following:
–
Open the Start menu, and then click Settings ➙ Devices ➙ Connected devices ➙ Add a device
.
– Click the action center icon
in the Windows notification area. Click Connect. Select the wireless
display and follow the instructions on the screen.
For more information, see the Windows help information system.
Choosing a display mode
You can display your desktop and apps on the computer display, the external display, or both. To choose
how to display the video output, press the display-mode switching key
and then select a display mode
you prefer.
There are four display modes:
• PC screen only
: Displays the video output only on your computer
screen.
Note: Depending on the situation, you might see Disconnect
, PC screen only, Computer only,
or
Disconnect projector
.
• Duplicate
: Displays the same video output on both your computer screen and an external display.
• Extend
: Extends the video output from your computer display to an external display. You can drag
and
move items between the two displays.
• Second screen only
: Shows the video output only on an external display.
Note: Depending on the situation, you might see Projector only or Second screen only.
If you show programs using DirectDraw or Direct3D
®
in full-screen mode, only the main display shows the
video output.
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L380, L380 Yoga, S2 3rd Gen, and S2 Yoga 3rd Gen User Guide