HP 6720t Mobile manual Initiating Standby fn+f3, Switching the screen image fn+f4

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In the Windows fn+esc display, the version of the system BIOS (basic input-output system) is displayed as the BIOS date. On some computer models, the BIOS date is displayed in decimal format. The BIOS date is sometimes called the system ROM version number.

Initiating Standby (fn+f3)

Press fn+f3 to initiate Standby.

When Standby is initiated, the power lights blink and the screen clears. Your computer is disconnected from the network.

CAUTION: To reduce the risk of information loss, save your work before initiating Standby.

The computer must be on before you can initiate Standby.

To exit Standby, press the power button or any key on the keyboard.

NOTE: In all Windows operating system windows, references to the Sleep button apply to the fn+f3 hotkey.

Switching the screen image (fn+f4)

Press fn+f4 to switch the screen image among display devices connected to the system. For example, if a monitor is connected to the computer, pressing fn+f4 alternates the screen image from computer display to monitor display to simultaneous display on both the computer and the monitor.

Most external monitors receive video information from the computer using the external VGA video standard. The fn+f4 hotkey can also alternate images among other devices receiving video information from the computer.

The following video transmission types, with examples of devices that use them, are supported by the fn+f4 hotkey:

●LCD (computer display)

●External VGA (most external monitors)

Viewing battery charge information (fn+f8)

Press fn+f8 to display charge information for all installed batteries. The display indicates which batteries are charging and reports the amount of charge remaining in each battery.

Decreasing screen brightness (fn+f9)

Press fn+f9 to decrease screen brightness. Hold down the hotkey to decrease the brightness level incrementally.

Increasing screen brightness (fn+f10)

Press fn+f10 to increase screen brightness. Hold down the hotkey to increase the brightness level incrementally.

12 Chapter 3 Pointing devices

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Contents HP Compaq 6720t Mobile Thin Client Page Safety warning notice Iv Safety warning notice Product notice Vi Product notice Table of contents Multimedia Appendix a Routine care Page Top components Identifying the hardwarePointing devices Lights Component DescriptionButtons and switches Adjust Power PropertiesKeys Fn keyRight-side components Front componentsLeft-side components Rear components Bottom componentsWireless antennae Identifying the labels Using the Enhanced Write Filter Enhanced Write FilterConnecting an external mouse Using pointing devicesSetting pointing device preferences Pointing devicesUsing hotkeys Using the keyboardDisplaying system information fn+esc Initiating Standby fn+f3 Switching the screen image fn+f4Viewing battery charge information fn+f8 Decreasing screen brightness fn+f9Using the embedded numeric keypad Using the keypadsEnabling and disabling the embedded numeric keypad Using an optional external numeric keypad Switching key functions on the embedded numeric keypadPower Power control and light locationsShutting down the computer PropertiesUsing power-saving states Setting power optionsInitiating and exiting Standby Using battery power Using the battery meterDisplaying the remaining battery charge Inserting or removing the batteryCharging a battery Identifying low battery levels Managing low battery levelsConserving battery power Resolving a low battery levelStoring a battery Using external AC powerDisposing of a used battery Connecting the AC adapter Using the audio features Using multimedia hardwareMultimedia Using the audio-out headphone jack Using the audio-in microphone jackAdjusting the volume Opening preinstalled multimedia software Using multimedia softwareUsing the video features Using the external monitor portPreventing playback disruptions Using multimedia softwareObserving the copyright warning Using wireless controls WirelessAbout integrated wireless devices Using WlanSetting up a Wlan Using wireless security features Connecting to a WlanIdentifying a Wlan device Connecting a modem cable Using a modemModem and LAN Connecting a country-specific modem cable adapter Solving travel connection problems Selecting a location settingViewing the current location selection Connecting to a local area network Set the modem to ignore dial tonesPage Security Protecting the computerSetting passwords in Windows Using passwordsUsing a power-on password Entering a power-on password Managing a power-on passwordRequiring a power-on password at restart Installing a security cable Using a USB device Connecting hardwareConnecting a USB device Removing a USB device Using the docking connectorUsing PC Cards Inserting and removing a PC CardPage Page Identifying installed drives Hardware upgradesHandling drives Using optical drives select models only Inserting an optical disc CD or DVD When the disc tray opens Removing an optical disc CD or DVDWhen the disc tray does not open Routine care Cleaning the displayCleaning the keyboard Traveling and shippingPage Index USBWlan

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