Video and Display Problems, If the display is blank | Dell JU373

If the touch pad operates correctly, the mouse may be defective.

C H E C K T H E S YS T E M S E T U P P R O G R A M S E T T I N G S — Verify that the system setup program lists the correct device for the pointing device option. (The computer automatically recognizes a USB mouse without making any setting adjustments.) For more information on using the system setup program, see "System Setup Program" on page 123.

TE S T T H E M O U S E C O N T R O L L E R — To test the mouse controller (which affects pointer movement) and the operation of the touch pad or mouse buttons, run the Mouse test in the Pointing Devices test group in the Dell Diagnostics (see "Dell Diagnostics" on page 103).

R E I N S T A L L T H E T O U C H P A D D R I V E R — See "Reinstalling Drivers and Utilities" on page 128.

Video and Display Problems

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

The display is blank

NOTE: For troubleshooting procedures, see the monitor’s documentation.

If the display is blank

NOTE: If you are using a program that requires a higher resolution than your computer supports, it is recommended that you attach an external monitor to your computer.

C H E C K T H E B A T T E R Y — If you are using a battery to power your computer, the battery charge may be depleted. Connect the computer to an electrical outlet using the AC adapter, and turn on the computer.

TE S T T H E E L E C T R I C A L O U T L E T — Ensure that the electrical outlet is working by testing it with another device, such as a lamp.

C H E C K T H E AC A D A P T E R — Check the AC adapter cable connections. If the AC adapter has a light, ensure that the light is on.

C O N N E C T T H E C O M P U T E R D I R E C T L Y T O A N E L E C T R I C A L O U T L E T — Bypass power protection devices, power strips, and the extension cable to verify that the computer turns on.

A D J U S T T H E P O W E R P R O P E R T I E S — Search for the keyword standby in Windows Help and Support (see "Windows Help and Support" on page 18).

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Troubleshooting

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Dell JU373 manual Video and Display Problems, If the display is blank, Display is blank, 120

Contents

User’s Guide August JU373 Contents Accessing Power Options Properties Customizing the Touch Pad Contents Using a Monitor as Your Primary Display Checking Your Wireless Network Card Mobile Broadband/Wireless Wide Area Network WwanInstalling a PC Card or ExpressCard Microsoft Windows Firewall 101 103 When to Use the Dell Diagnostics Viewing the System Setup Screens 124 127141 142 Automated Order-Status Service Macrovision Product Notice Contents Contents Finding Information What Are You Looking For? Find It Here May not ship with your computer At support.dell.com Service Tag and Microsoft Windows License Label What Are You Looking For? Dell Support Website support.dell.com Dell Support Utility Windows Help and Support Operating System Media Finding Information About Your Computer Front View Power button About Your Computer Y B O a R D S T a T U S L I G H T S Left Side View D I O C O N N E C T O R S Right Side View Back View Network connector RJ-45 Connects serial devices, such as a mouse or handheld device About Your Computer Bottom View About Your Computer Setting Up Your Computer Transferring Information to a New ComputerMicrosoft Windows XP To prepare a new computer for the file transfer Setting Up Your Computer Microsoft Windows Vista Turning Off Your Computer Setting Up Your Computer Using a Battery Battery Performance Checking the Battery Charge Dell QuickSet Battery Meter Microsoft Windows Power Meter Check the Battery ChargeCheck the Battery Health Charge Gauge Conserving Battery Power Low-Battery Warning Power Management Modes Standby and Sleep ModeHibernate Mode Configuring Power Management Settings Accessing Power Options PropertiesWindows XP Windows Vista Charging the Battery Replacing the Battery Storing a Battery Using the Keyboard Numeric Keypad Battery Key CombinationsSystem Functions CD or DVD Tray Power Management Speaker FunctionsMicrosoft Windows XP Logo Key Functions Microsoft Windows Vista Logo Key Functions TAB Touch Pad Customizing the Touch Pad Using the Display Adjusting BrightnessUsing a Projector Windows Vista Using Both a Monitor and Your Computer Display Using a Monitor as Your Primary Display Click the Settings tab→ Advanced→ Displays tab Windows Vista Using the Display Using Multimedia Playing CDs or DVDs DVD player includes the following basic buttons Adjusting the Volume Adjusting the Picture Connecting Your Computer to a TV or Audio Device Video TV-out connector Connector Output connector Video and Standard Audio Video and S/PDIF Digital Audio Composite video adapter Composite Video and Standard Audio Standard audio cable Composite Video and S/PDIF Digital Audio Composite video adapter Component Video and Standard Audio Component video adapter Component Video and S/PDIF Digital Audio Component video adapter Enabling S/PDIF Digital Audio Setting Up the Cyberlink CL Headphones Enabling S/PDIF in the Windows Audio Driver Enabling the Display Settings for a TV Click Advanced Setting Up and Using Networks Connecting a Network or Broadband Modem Cable Wireless Local Area Network Wlan What You Need to Establish a Wlan Connection Checking Your Wireless Network Card Start Button and Connect To OptionOrder Confirmation for Your Computer Setting Up and Using Networks Connecting to a Wlan Determining the Wireless Network Device Manager Click Start→ Settings→ Control Panel→ Network Connections Completing the Connection to the Wlan Mobile Broadband/Wireless Wide Area Network Wwan Enabling/Disabling the Wireless Network Card Checking Your Dell Mobile Broadband Card Connecting to a Mobile Broadband Network Microsoft Windows Firewall Setting Up and Using Networks Using Cards Card Types Installing a PC Card or ExpressCard Card BlanksExtended Cards Using Cards Removing a Card or Blank Passwords About PasswordsSecuring Your Computer Security Cable Lock Using a Primary or System Password Type of Password Features Using an Administrator Password Using a Hard Drive Password Trusted Platform Module TPM Enabling the TPM Feature Security Management Software Using the Security Management Software Computer Tracking SoftwareActivating the Security Management Software If Your Computer Is Lost or Stolen 100 Cleaning Your Computer Computer, Keyboard, and Display Floppy Drive CDs and DVDs102 Troubleshooting Dell Technical Update ServiceDell Diagnostics When to Use the Dell Diagnostics 104 Dell Diagnostics Main Menu 105Option Function 106 OptionTab Function Accessing the Dell Support Utility Dell Support UtilityClicking the Dell Support Icon 107 Solving Problems Drive ProblemsDouble-Clicking the Dell Support Icon 108 Optical drive problems Problems writing to an optical driveHard drive problems 109 Mail, Modem, and Internet Problems 110 Error Messages 111 Ieee 1394 Device Problems 112 Lockups and Software Problems Other software problems Program is designed for an earlier Windows operating systemSolid blue screen appears 114 Memory Problems Network Problems115 Power Problems 116 Printer Problems 117 Scanner Problems Sound and Speaker ProblemsNo sound from speakers 118 Touch Pad or Mouse Problems No sound from headphones119 Video and Display Problems If the display is blankDisplay is blank 120 If the display is difficult to read If only part of the display is readable121 122 System Setup Program Overview123 Windows Vista, click Start → Help and Support Viewing the System Setup Screens System Setup ScreensChanging the Boot Sequence Commonly Used Options Performing a One-Time Boot 125 Changing COM Ports Enabling the Infrared Sensor126 Reinstalling Software What Is a Driver?Drivers Identifying Drivers Reinstalling Drivers and Utilities Using Windows Device Driver RollbackMicrosoft Windows Vista 128 Using the Drivers and Utilities Media 129 Manually Reinstalling Drivers 130 Restoring Your Operating System 131 Using Microsoft Windows System Restore Starting System Restore132 Undoing the Last System Restore Enabling System Restore133 Using Dell PC Restore and Dell Factory Image Restore Windows XP Dell PC Restore134 135 Windows Vista Dell Factory Image Restore 136 Using the Operating System Media Reinstalling Windows XP or Windows VistaBefore you Begin 137 138 Dell QuickSet 139 140 Traveling With Your Computer Identifying Your ComputerPacking the Computer 141 Travel Tips Traveling by Air142 Getting Help Obtaining Assistance143 Technical Support and Customer Service DellConnect Online Services144 Problems With Your Order AutoTech ServiceAutomated Order-Status Service 145 Before You Call 146 147 Diagnostics Checklist 148 Contacting Dell 149 150 Specifications 151Processor System Information Ports and Connectors 152Memory 153 CommunicationsVideo Audio 154 Display Battery 155Keyboard Touch Pad 156 AC Adapter 157 PhysicalEnvironmental 158 Appendix FCC Notice U.S. OnlyFCC Class B 159 Macrovision Product Notice 160 Glossary 161 162 163 Product ID 164 165 166 167 168 169 Module bay See media bay 170 NIC See network adapter 171 172 173 174 Video resolution See resolution 175 176