Using the Display, Adjusting Brightness | Dell PP22L, RT722 guide

Using the Display

Adjusting Brightness

When a Dell™ computer is running on battery power, you can conserve power by setting the display brightness to the lowest comfortable level.

•Press <Fn> and the up-arrow key to increase brightness on the integrated display only (not on an external monitor).

•Press <Fn> and the down-arrow key to decrease brightness on the integrated display only (not on an external monitor).

NOTE: Brightness key combinations only affect the display on your portable computer, not monitors or projectors that you attach to your portable computer or docking device. If your computer is connected to an external monitor and you try to change the brightness level, the Brightness Meter may appear, but the brightness level on the external device does not change.

Switching the Video Image From Your Computer Display To a Projector

When you start the computer with an external device attached (such as an external monitor or projector) and turned on, the image may appear on either the computer display or the external device.

Press <Fn><F8> to switch the video image between the display only, the external device only, or the display and the external device simultaneously.

Setting Display Resolution and Refresh Rate

NOTE: If you change the display resolution from the current settings, the image may appear blurry or text may be hard to read if you change the resolution to one not supported by your computer and display. Before you change any of the display settings, make a note of the current settings so you can change back to the previous settings if needed.

Using the Display

39

Image 39

Dell PP22L, RT722 owner manual Using the Display, Adjusting Brightness, Setting Display Resolution and Refresh Rate

Contents

W . d e l l . c o m s u p p o r t . d e l l . c o m September RT722 Contents Using the Keyboard and Touchpad Microsoft Windows Battery Meter Using the Memory Card Reader Securing Your Computer External Keyboard problems 141 Adding and Replacing Parts Dell QuickSet Features Traveling With Your Computer 173 Dell Technical Support Policy U.S. Only Glossary Drivers and Utilities Media Finding Information Setup Diagram Go to support.dell.com, select your Dell Support Utility Operating System Media Finding Information About Your Computer Determining Your Computer’s Configuration Front View M E R a I N D I C a T O R selections you made camera V I C E S T a T U S L I G H T S About Your Computer Y B O a R D S T a T U S L I G H T S Left Side View Flashing green Searching for networks Right Side View USB connectors Back View I D E O TV- O U T C O N N E C T O R Bottom View Left speaker About Your Computer Connecting to the Internet Setting Up Your Computer Setting Up Your Internet Connection Use one of the following methods for transferring data Setting Up a PrinterTransferring Information to a New Computer Windows Easy Transfer Printer Cable Connecting a USB Printer Surge Protectors Power Protection Devices Line Conditioners Uninterruptible Power Supplies Using the Display Adjusting BrightnessSetting Display Resolution and Refresh Rate Using the Display Numeric Keypad Using the Keyboard and Touchpad System Functions BatteryPower Management Key Combinations Dell QuickSet Key Combinations Adjusting Keyboard SettingsTouch Pad Microsoft Windows Logo Key Functions Silk screen depicting scrolling capabilities Customizing the Touch Pad Using the Keyboard and Touchpad Battery Performance Using a Battery Checking the Battery Charge Dell QuickSet Battery MeterBattery Meter Charge Gauge Microsoft Windows Battery Meter Conserving Battery Power Low-Battery WarningConfiguring Power Management Settings Charging the Battery Using the Sleep Power StateTo exit Sleep state, press the power button To remove the battery Replacing the Battery Storing a Battery Using a Battery Playing Media Using Multimedia DVD player includes the following basic buttons CD player includes the following basic buttons To play media using Dell Travel Remote Playing Media Using Dell Travel Remote Copying CD and DVD Media Using Blank CD and DVD Media How to Copy a CD or DVD DVD-Writable Drives Helpful Tips Click Open Volume Mixer Adjusting the VolumeAdjusting the Picture Using Dell MediaDirect Connecting Your Computer to a TV or Audio Device Video connector Using Multimedia Connector Video and Standard Audio Video and S/PDIF Digital Audio Pdif digital audio cable 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 cable Component video adapter Component Video and S/PDIF Digital Audio Standard audio cable Component video cable Enabling the Display Settings for a TV Enabling S/PDIF Digital AudioClick Advanced Click S/PDIF Interface ExpressCard Blanks Using ExpressCards Installing an ExpressCard Removing an ExpressCard or Blank Using ExpressCards Using the Memory Card Reader Installing a Memory CardMemory Card Blanks To install a memory card Removing a Memory Card or Blank Using the Memory Card Reader Connecting a Network or Broadband Modem Cable Setting Up and Using Networks What You Need to Establish a Wlan Connection Setting Up a NetworkWireless Local Area Network Before you can set up a WLAN, you need Checking Your Wireless Network Card Device ManagerClick Properties Order Confirmation for Your Computer Setting Up and Using Networks Connecting to a Wlan Click Connect to a network under Tasks To connect to the network To set up a Mobile Broadband network connection, you need Mobile Broadband or Wireless Wide Area Network Checking Your Dell Mobile Broadband Card Connecting to a Mobile Broadband Network Enabling/Disabling the Dell Mobile Broadband Card Click Start → All Programs→ Dell Wireless Dell Wi-Fi Catcher Network Locator Passwords Securing Your ComputerSecurity Cable Lock When using passwords, observe the following guidelines If Your Computer Is Lost or Stolen 100 101 TroubleshootingDell Technical Update Service Dell Diagnostics 102 103 104 105 Dell Support Center Dell Support106 107 Dell PC Tune-Up DellConnect To access Dell Network AssistantDell PC CheckUp Dell Network Assistant To begin a live session with a Dell associate Drive ProblemsOptical drive problems Hardware Problems in the Windows Vista Operating System on Drive makes an unfamiliar scraping or grinding sound Hard drive problemsProblems writing to a CD-RW or DVD+/-RW drive Or DVD creation software Drive tray cannot eject 111 Mail, Modem, and Internet ProblemsCannot open your e-mail attachments Click Hardware and Sound Click Phone and Modem Options 112 Error Messages 113 Do not use these characters in filenames 114 115 116 Under Programs, click Uninstall a Program 117 ExpressCard ProblemsDrive and try again Contact the ExpressCard manufacturer Ieee 1394 Device Problems Keyboard ProblemsExternal Keyboard problems 119 Unexpected characters Program stops responding or crashes repeatedly Lockups and Software ProblemsComputer does not start Computer stops responding 121 Dell MediaDirect problemsMenu to access Dell MediaDirect Help Solid blue screen appears 122 Other software problems 123 Memory ProblemsNetwork Problems Run the Dell Diagnostics see Dell Diagnostics on 124 Mobile Broadband Wireless Wide Area Network Wwan 125 Power Problems Printer Problems Click Start → Control Panel→ Hardware and Sound→ Printers126 Scanner Problems Sound and Speaker ProblemsNo sound from integrated speakers Click Start → Control Panel→ Hardware and Sound→ Mouse Touch Pad or Mouse ProblemsNo sound from headphones No sound from external speakers Video and Display Problems If the display is blank129 Glare, which can cause poor picture quality If the display is difficult to read 131 What Is a Driver?Drivers If only part of the display is readable Properties Reinstalling Drivers and UtilitiesIdentifying Drivers Click Properties→ Device Manager Using the Drivers and Utilities Media At the Welcome Dell System Owner screen, click Next133 Manually Reinstalling Drivers 135 Restoring Your Microsoft Windows Vista Operating System For more information Click Start → Help and Support Using Windows Vista System Restore Click Next→ Finish Click Undo my last restoration, and then click Next137 138 139 Using the Operating System Media 140 Turning Off Your Computer Adding and Replacing PartsBefore You Begin Recommended Tools 142 Before Working Inside Your Computer 143 Hard Drive 144 Removing the Hard Drive Replacing the Hard Drive Returning a Hard Drive to Dell145 Optical Drive Removing the Optical Drive146 147 Hinge CoverReplacing the Optical Drive Removing the Hinge Cover Replacing the Hinge Cover Keyboard 149 Removing the Keyboard Dimm a memory module is located under the keyboard MemoryReplacing the Keyboard Removing the Dimm a Memory Module 151 152 Replacing the Dimm a Memory Module 153 Removing the Dimm B Memory Module 154 Replacing the Dimm B Memory Module 155 156 Subscriber Identity Module Wireless Mini Cards Removing a Wlan Card157 158 159 Replacing a Wlan Card 160 Removing a Mobile Broadband or Wwan Card 161 162 163 Replacing a Wwan Card 164 Removing a Wpan Card 165 Internal Card With Bluetooth Wireless TechnologyReplacing a Wpan Card Removing the Card Coin-Cell Battery Replacing the Card166 Removing the Coin-Cell Battery Replacing the Coin-Cell Battery167 168 169 Dell QuickSet Features 170 171 Traveling With Your ComputerIdentifying Your Computer Packing the Computer 172 Wireless switch onTravel Tips Traveling by Air Getting Help Obtaining Assistance173 DellConnect Online Services Technical Support and Customer Service Product Information Problems With Your OrderAutoTech Service Automated Order-Status Service Returning Items for Warranty Repair or Credit 177 Before You Call 178 179 Contacting Dell 180 181 Specifications 182 USB 183 Wxga 184 185 186 187 188 189 Using the System Setup ProgramYou can use system setup as follows Appendix Diskette Drive Internal HDD 190 Viewing the System Setup ScreenSystem Setup Screen Commonly Used Options 191 USB Storage Device CD/DVD/CD-RW drive Modular bay HDD 192 Cleaning Your ComputerComputer, Keyboard, and Display Touch Pad Mouse Media193 194 Dell Technical Support Policy U.S. Only FCC Class B Definition of Dell-Installed Software and PeripheralsFCC Notice U.S. Only Definition of Third-Party Software and Peripherals 196 Macrovision Product Notice 197 Glossary 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 Index Adjusting brightness, 39 adjusting the size of icons 217 Index 219 Safely Remove Hardware, 117 wireless activity indicator 221 222