Home » Lenovo Manuals » Laptops » Lenovo ThinkPad Yoga 14 » Manual Viewer

Lenovo ThinkPad Yoga 14 (English) User Guide - ThinkPad Yoga 14 - Page 106

Problems with the display and multimedia devices, Computer screen problems

View all Lenovo ThinkPad Yoga 14 manuals

Add to My Manuals
Save this manual to your list of manuals

Page 106 highlights

3. Turn on the computer and try using the keyboard again. If the keyboard problem is resolved, carefully reconnect the external numeric keypad and the external keyboard. Ensure that you have seated the connectors correctly. If the problem persists, ensure that the correct device driver is installed by doing the following: 1. Open Control Panel. Change the view of Control Panel from Category to Large icons or Small icons. 2. Click Keyboard. 3. Select the Hardware tab. In the Device Properties pane, ensure that you see this message: Device Status: This device is working properly. If keys on the keyboard still do not work, have the computer serviced. • Problem: All or some keys on the external numeric keypad do not work. Solution: Ensure that the external numeric keypad is correctly connected to the computer. Problems with the display and multimedia devices This topic includes the most common problems with displays and multimedia devices, including the computer display, the external monitor, and audio devices. Computer screen problems • Problem: The screen is blank. Solution: Do the following: - Press the display mode-switching key to bring up the image. - If you are using the ac power adapter, or using the battery and the battery gauge shows that the battery is not depleted, press the brightness-up key to make the screen brighter. - If your computer is in sleep mode, press Fn to resume from the sleep mode. - If the problem persists, follow the solution for the following problem. • Problem: The screen is unreadable or distorted. Solution: Ensure that: - The display device driver is installed correctly. - The screen resolution and color quality are correctly set. - The monitor type is correct. To check these settings, do the following: 1. Right-click anywhere on the desktop, and click Screen resolution. 2. Click Advanced Settings. 3. Click the Adapter tab to ensure that the correct device driver name is shown in the Adapter Information window. Then click the Properties button. If you are prompted for an administrator password or confirmation, type the password or provide confirmation. Check the Device status box and make sure that the device is working correctly. If the device is not working correctly, click the Troubleshoot button and follow the instructions on the screen. Note: The device driver name depends on the video chip that has been installed on your computer. 4. Click the Monitor tab to ensure that the correct monitor type is shown in the Monitor Type window. Then click the Properties button. If you are prompted for an administrator password or confirmation, type the password or provide confirmation. Check the Device status box and make sure that the 90 User Guide

Section	Page
Read this first	7
Important safety information	8
Conditions that require immediate action	9
Safety guidelines	9
Chapter 1. Product overview	17
Locating computer controls, connectors, and indicators	17
Front view	17
Right-side view	18
Left-side view	20
Bottom view	21
Rear view	22
Status indicators	22
Locating important product information	23
Machine type and model label	23
FCC ID and IC Certification information	24
Certificate of Authenticity label	25
Genuine Microsoft label	25
Features	26
Specifications	27
Operating environment	28
Lenovo programs	28
Accessing Lenovo programs on the Windows 7 operating system	28
Accessing Lenovo programs on the Windows 8.1 operating system	29
An introduction to Lenovo programs	30
Chapter 2. Using your computer	33
Registering your computer	33
Frequently asked questions	33
Using the tablet buttons	36
Using the multi-touch screen	36
Operating modes	39
Enabling the operating modes	39
Rotating the computer display	40
Notebook mode	41
Stand mode	41
Tablet mode	42
Tent mode	44
Using the keyboard	45
Special keys	47
ThinkPad pointing device	49
Using the ThinkPad pointing device	50
Using the trackpad touch gestures	52
Customizing the ThinkPad pointing device	53
Replacing the cap of pointing stick	53
Power management	54
Checking the battery status	54
Using the ac power	55
Charging the battery	55
Maximizing the battery life	56
Managing the battery power	56
Power-saving modes	56
Connecting to the network	57
Ethernet connections	57
Wireless connections	57
Using an external display	60
Connecting an external display	60
Choosing a display mode	61
Changing display settings	61
Using audio features	61
Using the camera	62
Using a flash media card	62
Chapter 3. Enhancing your computer	65
Finding ThinkPad options	65
ThinkPad OneLink Dock	65
ThinkPad OneLink Pro Dock	66
Chapter 4. Security	69
Using passwords	69
Typing passwords	69
Power-on password	69
Supervisor password	70
Hard disk passwords	71
Hard disk security	73
Setting the security chip	74
Notice on deleting data from your storage drive	75
Using firewalls	76
Protecting data against viruses	76
Chapter 5. Advanced configuration	77
Installing a new operating system	77
Installing the Windows 7 operating system	77
Installing the Windows 8.1 operating system	78
Installing device drivers	79
Using the ThinkPad Setup program	79
Main menu	80
Config menu	80
Date and Time menu	83
Security menu	83
Startup menu	88
Restart menu	90
Updating the UEFI BIOS	90
Using system management	90
Chapter 6. Preventing problems	93
General tips for preventing problems	93
Making sure device drivers are current	94
Taking care of your computer	95
Cleaning the cover of your computer	96
Chapter 7. Troubleshooting computer problems	99
Diagnosing problems	99
Troubleshooting	99
Computer stops responding	99
Spills on the keyboard	100
Error messages	100
Errors without messages	102
Beep errors	103
Memory module problems	103
Networking problems	103
Problems with the keyboard and other pointing devices	105
Problems with the display and multimedia devices	106
Battery and power problems	110
Problems with drives and other storage devices	113
A software problem	113
Problems with ports and connectors	114
Chapter 8. Recovery overview	115
Recovery overview for the Windows 7 operating system	115
Creating and using a recovery media	115
Performing backup and recovery operations	116
Using the Rescue and Recovery workspace	117
Creating and using a rescue medium	118
Reinstalling preinstalled applications and device drivers	119
Solving recovery problems	120
Recovery overview for the Windows 8.1 operating system	120
Refreshing your computer	120
Resetting your computer to the factory default settings	121
Using the advanced startup options	121
Recovering your operating system if Windows 8.1 fails to start	121
Creating and using recovery media	121
Chapter 9. Replacing devices	123
Static electricity prevention	123
Disabling the built-in battery	123
Replacing the keyboard	124
Replacing the base cover assembly	128
Replacing the memory module	130
Replacing the storage drive	131
Replacing the wireless LAN card	134
Replacing the button I/O card	136
Replacing the audio/USB/OneLink/ac power card	137
Replacing the speaker assembly	141
Replacing the coin-cell battery	143
Chapter 10. Getting support	147
Before you contact Lenovo	147
Getting help and service	147
Using diagnostic programs	148
Lenovo Support Web site	148
Calling Lenovo	148
Purchasing additional services	149
Chapter 11. You and your computer	151
Accessibility and comfort	151
Ergonomic information	151
Comfort	152
Accessibility information	152
Traveling with your computer	156
Travel tips	156
Travel accessories	157
Appendix A. Regulatory information	159
Wireless related information	159
Location of the UltraConnect wireless antennas	160
Locating wireless regulatory notices	161
Export classification notice	161
Electronic emission notices	161
Federal Communications Commission Declaration of Conformity	161
Industry Canada Class B emission compliance statement	161
European Union - Compliance to the Electromagnetic Compatibility Directive	162
German Class B compliance statement	162
Korea Class B compliance statement	163
Japan VCCI Class B compliance statement	163
Japan compliance statement for products which connect to the power mains with rated current less than or equal to 20 A per phase	163
Lenovo product service information for Taiwan	163
Eurasian compliance mark	163
Brazil regulatory notice	163
Mexico regulatory notice	163
Appendix B. WEEE and recycling statements	165
Important WEEE information	165
Japan recycling statements	165
Recycling information for Brazil	166
Battery recycling information for the European Union	166
Battery recycling information for Taiwan	167
Battery recycling information for the United States and Canada	167
Recycling information for China	167
Appendix C. Restriction of Hazardous Substances Directive (RoHS)	169
European Union RoHS	169
China RoHS	170
Turkish RoHS	171
Ukraine RoHS	171
India RoHS	171
Appendix D. ENERGY STAR model information	173
Appendix E. Notices	175

Match case Limit results 1 per page

3. Turn on the computer and try using the keyboard again.

If the keyboard problem is resolved, carefully reconnect the external numeric keypad and the external

keyboard. Ensure that you have seated the connectors correctly.

If the problem persists, ensure that the correct device driver is installed by doing the following:

1. Open

ControlPanel

. Change the view of Control Panel from Category to Large icons or Small icons.

2. Click

Keyboard

3. Select the

Hardware

tab. In the

DeviceProperties

pane, ensure that you see this message:

Device

Status: This device is working properly.

If keys on the keyboard still do not work, have the computer serviced.

•

Problem

: All or some keys on the external numeric keypad do not work.

Solution

: Ensure that the external numeric keypad is correctly connected to the computer.

Problems with the display and multimedia devices

This topic includes the most common problems with displays and multimedia devices, including the

computer display, the external monitor, and audio devices.

Computer screen problems

•

Problem

: The screen is blank.

Solution

: Do the following:

– Press the display mode-switching key

to bring up the image.

– If you are using the ac power adapter, or using the battery and the battery gauge shows that the battery

is not depleted, press the brightness-up key

to make the screen brighter.

– If your computer is in sleep mode, press Fn to resume from the sleep mode.

– If the problem persists, follow the solution for the following problem.

•

Problem

: The screen is unreadable or distorted.

Solution

: Ensure that:

– The display device driver is installed correctly.

– The screen resolution and color quality are correctly set.

– The monitor type is correct.

To check these settings, do the following:

1. Right-click anywhere on the desktop, and click

Screen resolution

2. Click

Advanced Settings

3. Click the

Adapter

tab to ensure that the correct device driver name is shown in the Adapter

Information window. Then click the

Properties

button. If you are prompted for an administrator

password or conﬁrmation, type the password or provide conﬁrmation. Check the

Devicestatus

box

and make sure that the device is working correctly. If the device is not working correctly, click the

Troubleshoot

button and follow the instructions on the screen.

Note:

The device driver name depends on the video chip that has been installed on your computer.

4. Click the

Monitor

tab to ensure that the correct monitor type is shown in the Monitor Type window.

Then click the

Properties

button. If you are prompted for an administrator password or conﬁrmation,

type the password or provide conﬁrmation. Check the

Device status

box and make sure that the

User Guide