Dock problem | Lenovo 20CD0033US manual

A dock problem

Problem: The computer does not start when you try to turn it on, and does not respond when you try to resume operation.

Solution: Make sure that:

•The ThinkPad OneLink Dock is connected to power.

•The computer is correctly connected to the ThinkPad OneLink Dock.

96User Guide

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Lenovo 20CD0033US manual Dock problem

Contents

User Guide Safety, Warranty, and Setup Guide Regulatory Notice First Edition November Copyright Lenovo Contents Preventing problems Prevent your computer from getting wet Read this firstProtect yourself from the heat that your computer generates Protect the cables from being damaged Handle your computer gently Important safety informationProtect your computer and data when moving it Carry your computer carefully Conditions that require immediate action Safety guidelinesService and upgrades Power cords and power adapters Plugs and outlets Power supply statementExtension cords and related devices Vii External devices General battery noticeBuilt-in rechargeable battery notice Lithium coin cell battery notice Heat and product ventilation Liquid crystal display LCD notice Electrical current safety informationUsing headphones or earphones Additional safety information Xii User Guide Front view Locating computer controls, connectors, and indicatorsProduct overview Microphones System status indicator illuminated ThinkPad logoCamera Ambient light sensor Tablet Digitizer Pen on some models Power buttonRight-side view Mini Hdmi connector Volume control buttonsUSB 3.0 connector Screen rotation lock button Left-side view Ac power connector Lenovo OneLink connectorAlways On USB 3.0 connector Bottom view Audio connectorEmergency reset hole Fan louvers Status indicatorsRear view Locating important product information Machine type and model label FCC ID and IC Certification information Genuine Microsoft label Features Specifications Active Protection System Operating environmentLenovo programs Lenovo Solution Center Client Security SolutionLenovo Settings Password Manager User Guide Using your computer Registering your computer Frequently asked questions Is getting connected in different locations a challenge? Using the tablet buttons Using the Tablet Digitizer Pen Using the multi-touch screen Drag TapPress and hold Swipe or slide Tasks Touch gestures touch models only Mouse actions Tasks Touch gestures touch models only Mouse actions Rotating the computer display Display angle for each operating modeOperating modes Stand mode Stand mode Tablet mode Tent mode User Guide Tablet mode Tent mode Tips on using your computer in tablet mode Turning the computer into tent mode from tablet mode Turning the computer into stand mode from tent mode Special keys Function keys Using the keyboard Windows key Behavior of the keyboard Customizing the keyboard Using the ThinkPad trackpad Using the ThinkPad pointing deviceUsing the TrackPoint pointing stick Customizing the ThinkPad pointing device Power managementChecking the battery status Click Hardware and Sound Mouse ThinkPad Connecting the ac power adapter Using the ac power adapterCharging the battery Tips on using the ac power adapter Power-saving modes Maximizing the battery lifeManaging the battery power Using the wireless LAN connection Connecting to the networkWireless connections Wireless off Tips for using the wireless LAN feature Using the Bluetooth connectionUsing the NFC connection Select Send To Bluetooth Devices Presentations and multimedia Changing display settingsUsing an external monitor Changing the color settings Using a projectorUsing dual display Considerations for connecting an external monitor Considerations for using the Extend desktop function Using audio featuresUsing the Duplicate or Extend desktop function Enabling the Duplicate or Extend desktop function Configuring for sound recording Using the cameraUsing a flash media card Configuring camera settings Removing a flash media card Installing a flash media cardClick Hardware and Sound Ergonomic information Accessibility and comfortYou and your computer Accessibility information Comfort Assistive technologies Traveling with your computerTravel tips Screen-reader technologies Travel accessories Power-on password Using passwordsTyping passwords Security Supervisor password Setting, changing, or removing a power-on password Setting, changing, or removing a supervisor password Master hard disk password Hard disk passwordsUser hard disk password Setting a hard disk password Tips on using the hard disk passwords Hard disk security Setting the security chip Setting the security chipUsing Windows BitLocker Drive Encryption Tips on using the security chip Using firewalls Protecting data against viruses Refreshing your computer Recovery overviewResetting your computer to the factory default settings Creating recovery media Using the advanced startup optionsCreating and using recovery media Using recovery media User Guide ThinkPad OneLink Dock Enhancing your computerFinding ThinkPad options Front view Rear view User Guide Advanced configuration Installing the Windows 8.1 operating system Country or region Code Installing device driversUsing the ThinkPad Setup program Disabled Config menuEnabled Main menu Keyboard/Mouse PowerAuto Display Security menu Beep and AlarmDate and Time menu Menu item Submenu item Selection Comments Password Enabled At unattended boot, a password Smbios Reporting Smbios Disabled, the Security Chip optionBios ROM Strings Reporting Uefi Bios Update Option Port Access Virtualization Startup menu Secure BootDefaults is Enabled Menu item Submenu item Selection Comments Anti-Theft Is Disabled Menu item Selection Comments BootUEFI/Legacy Boot Both if OS Optimized Defaults Following UEFI/Legacy Boot Priority Boot Order Lock Disabled Updating the Uefi BiosUsing system management Restart menu Asset ID Eeprom Preboot eXecution EnvironmentDesktop Management Interface Preventing problems General tips for preventing problems Getting the latest drivers from the Web site Getting the latest drivers using System UpdateMaking sure device drivers are current Be gentle with your computer Be careful about where and how you workTaking care of your computer Carry your computer properly Cleaning your computer keyboard Cleaning the cover of your computerTaking care in setting passwords Cleaning your computer display Preventing problems User Guide Troubleshooting Troubleshooting computer problemsDiagnosing problems Computer stops responding If you spill something on your computer Error messagesSpills on the keyboard Troubleshooting computer problems Errors without messages Networking problems Beep errorsMemory module problems Ethernet problems Solution Wireless LAN problemBluetooth problems TrackPoint pointing device problems Problems with the keyboard and other pointing devicesProblems with the display and multimedia devices Keyboard problems Computer screen problems External monitor problems Audio problems Double-clickSound, video and game controllers Click Hardware and Sound An ac power adapter problem Battery and power problemsBattery problems Power problems Sleep and hibernation problems Power button problemBoot problems Problems with drives and other storage devices Hard disk drive problems Solid-state drive problem Software problemProblems with ports and connectors USB problem Dock problem Before you contact Lenovo Getting help and serviceGetting support Calling Lenovo Using diagnostic programsLenovo Support Web site Purchasing additional services Telephone numbers User Guide Appendix A. Regulatory information Wireless related informationWireless interoperability 101 Usage environment and your health Location of the UltraConnect wireless antennasLocating wireless regulatory notices Export classification notice Industry Canada Class B emission compliance statement German Class B compliance statement Appendix A. Regulatory information User Guide Japan recycling statements Appendix B. Weee and recycling statementsImportant Weee information 107 Disposing of Lenovo computer components Battery recycling information for the European UnionRecycling information for Brazil Appendix B. Weee and recycling statements User Guide 111 European Union RoHSChina RoHS Turkish RoHS Ukraine RoHS India RoHS Click Hardware and Sound Device Manager Power plan Energy Saver settings when plugged into ac powerAppendix D. Energy Star model information 113 Click OK Appendix E. Notices 115 Trademarks