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Dell TX453 manual Ambient light sensor

Models: TX453

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1ambient light sensor

The ambient light sensor is disabled when your computer is shipped to you. If you enable the sensor and then use any of the display brightness key combinations, the sensor is disabled and the display brightness is increased or decreased accordingly.

Dell™ QuickSet allows you to enable or disable the ambient light sensor feature. You can also adjust maximum and minimum brightness settings that are activated when you enable the ambient light sensor feature. For more information about QuickSet, right-click the QuickSet icon in the taskbar, and click Help.

NOTE: Rebooting the computer returns the ambient light sensor to the setting (either enabled or disabled) as it was before it was adjusted.

NOTE: The ambient light sensor adjusts the display backlighting on your portable computer only. It does not control the brightness on any external monitors or projectors.

Using the Display

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Dell TX453 manual Ambient light sensor

Contents

W . d e l l . c o m s u p p o r t . d e l l . c o m User’s GuideAbbreviations and Acronyms Contents Enabling the Display Settings for a TV Microsoft Windows Logo Key FunctionsCustomizing the Touch Pad and Track Stick What You Need to Establish a Wlan Connection Setting Up and Using NetworksDouble-Clicking the Dell Support Icon Contents Starting the Dell Diagnostics From Your Hard DriveProgram stops responding or crashes repeatedly Ensuring Sufficient Power for Your Computer102 Using Microsoft Windows System Restore 103If only part of the display is readable 100Technical Support and Customer Service 139 Removing and Installing Media Bay Devices 111Wireless Local Area Network Wlan Cards 120 Internal Card With Bluetooth Wireless Technology 125146 Returning Items for Warranty Repair or Credit 141142 145Finding Information Documentation updatesFinding Information Can be found at support.dell.comQuick Reference Guide Dell Support Website support.dell.com QuickSet on To view Dell QuickSet Help, right-click the QuicksetIcon in the Microsoft Windows taskbar For more information on Dell QuickSet, see DellAbout Your Computer About Your ComputerTouch pad Volume control buttons Mute button Ambient light sensorLight is flashing Solid orange The battery charge is critically lowY 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 Flashing yellow ErrorBack View Video TV-out connectorConnects serial devices, such as a mouse or handheld device About Your Computer Bottom View Docking-device connectorAbout Your Computer To prepare the new computer for the file transfer Transferring Information to a New ComputerClick Finished and restart the new computer Windows Vista Page Battery Performance Using a BatteryCharge Gauge Checking the Battery ChargeDell QuickSet Battery Meter Microsoft Windows Power MeterStandby Mode Conserving Battery PowerPower Management Modes Low-Battery WarningHibernate Mode Configuring Power Management Settings Charging the BatteryReplacing the Battery Storing a Battery Key Combinations Using the Keyboard and Touch PadUsing the Keyboard and Touch Pad Numeric KeypadDisplay Functions BatteryPower Management Power Options Properties window see ConfiguringTouch Pad Customizing the Touch Pad and Track Stick Changing the Track Stick CapUsing the Keyboard and Touch Pad Using the Keyboard and Touch Pad Using Multimedia Using MultimediaPlaying CDs or DVDs Adjusting the Picture Adjusting the VolumeEnabling the Display Settings for a TV Connecting Your Computer to a TVClick the tab for your video card Using the Display Adjusting BrightnessUsing the Display Click the Windows Vista Start button →Control Panel Microsoft Windows XPMicrosoft Windows XP Click the Start button and click Control Panel Using the Ambient Light SensorAmbient light sensor Using the Display Setting Up and Using Networks Setting Up and Using NetworksConnecting a Network or Broadband Modem Cable Setting Up a Network in Microsoft Windows XPWhat You Need to Establish a Wlan Connection Setting Up a Network in Microsoft Windows VistaWireless Local Area Network Wlan Checking Your Wireless Network CardSetting Up and Using Networks Connecting to a Wlan Setting Up and Using Networks Checking Your Mobile Broadband Card Mobile Broadband or Wireless Wide Area Network WwanEnabling/Disabling the Dell Mobile Broadband Network Card Connecting to a Mobile Broadband NetworkDell Wi-Fi Catcher Network Locator Internet Connection FirewallFor information about Dell QuickSet, see Dell QuickSet on Setting Up and Using Networks Setting Up and Using Networks Card Blanks Using CardsInstalling a PC Card or ExpressCard Card TypesExpressCard PC CardRemoving a Card or Blank Using Cards About Smart Cards Securing Your ComputerSecurity Cable Lock Smart CardsInstalling a Smart Card PasswordsUsing an Administrator Password Using a Primary/System PasswordUsing a Hard Drive Password Trusted Platform Module TPM Enabling the TPM FeatureSecurity Management Software Computer Tracking SoftwareIf Your Computer Is Lost or Stolen Securing Your Computer Securing Your Computer When to Use the Dell Diagnostics TroubleshootingDell Technical Update Service Dell DiagnosticsDell Diagnostics Main Menu Troubleshooting Accessing the Dell Support Utility Dell Support UtilityClicking the Dell Support Icon Drive Problems Double-Clicking the Dell Support IconClick the Windows Vista Start button →Computer Right-click Local Disk C CD and DVD drive problemsHard drive problems Problems writing to a CD/DVD-RW driveMail, Modem, and Internet Problems Keyword spyware Error MessagesTroubleshooting Click Start→Control Panel→Add or Remove Programs Keyboard Problems Ieee 1394 Device ProblemsLockups and Software Problems External keyboard problemsUnexpected characters Program stops responding or crashes repeatedly Other software problemsComputer does not start up Computer stops respondingRun the Dell Diagnostics see Dell Diagnostics on Memory ProblemsNetwork Problems If necessary, uninstall and then reinstall the programPower Problems PC Card or ExpressCard ProblemsEnsuring Sufficient Power for Your Computer Docking Power ConsiderationsExtension cable to verify that the computer turns on Scanner Problems Printer ProblemsNo sound from integrated speakers Sound and Speaker ProblemsTouch Pad or Mouse Problems No sound from headphonesIf the display is blank Video and Display ProblemsIf only part of the display is readable If the display is difficult to readOverview System Setup ProgramViewing the System Setup Screens System Setup ProgramSystem Setup Screens Commonly Used SettingsChanging the Boot Sequence Changing COM Ports Performing a One-Time BootSystem Setup Program Attach a name tag or business card to the computer Traveling With Your ComputerIdentifying Your Computer Packing the ComputerTraveling by Air Travel TipsDrivers Reinstalling SoftwareWhat Is a Driver? Reinstalling SoftwareReinstalling Drivers and Utilities 101 102 Restoring Your Operating System103 Using Microsoft Windows System RestoreEnsure that Turn off System Restore is unchecked Using the Operating System MediaComponents and controllers Touch Pad Enhances the pointing device features Other105 Chipset106 Turning Off Your Computer Adding and Replacing PartsBefore You Begin Recommended ToolsHard Drive Follow the procedures in Before You Begin on 108Screws 109Foam packaging Media BayReturning a Hard Drive to Dell Removing the Device Security ScrewRemoving and Installing Media Bay Devices 111Device security screw Device latch release Push the new device into the bay until it clicks Hinge CoverKeyboard 113Hinge cover Keyboard Keyboard screws Keyboard connector115 MemoryMemory module Captive screw 117Memory module SIM card Wireless CardsSubscriber Identity Module SIM Card 119Antenna cables Wireless Local Area Network Wlan CardsWlan card Metal securing bracket 121Mobile Broadband or Wireless Wide Area Network Wwan Cards FCM Flash Cache Module 123Wwan card Metal securing bracket FCM card Antennae cables Lift the card out of its connector 124Internal Card With Bluetooth Wireless Technology 125FCM card Metal tab Card Cable connector 127 Coin-Cell BatteryCard Card connector Cable connector Mylar Coin-cell battery128 Dell QuickSet 129Dell QuickSet 130 131 SpecificationsModem RJ-11 support Network adapter RJ-45 port Dock Ieee Pin serial connector Video TV-out132 To composite video adapter cableLCD interface 133134 Can be significantly reduced under Certain power-intensive conditions see135 Keycaps136 137 138 139 Technical Support and Customer ServiceGetting Help Obtaining AssistanceDellConnect Online Services 141 Problems With Your OrderAutoTech Service Automated Order-Status ServiceContacting Dell Before You Call143 144 Touch Pad Cleaning Your ComputerAppendix Computer, Keyboard, and DisplayMouse CDs and DVDs146 147 Macrovision Product NoticeFCC Notice U.S. Only FCC Class B148 149 Glossary150 151 Extended display mode a display setting that allows Glossary152 Memory a temporary data storage area inside your Glossary 153154 155 156 157 158 Video resolution See resolution