HP LJ475UT manual Computer does not detect the optical drive, Disc does not play

Page 90

The computer does not detect the optical drive

If your operating system does not detect an installed device, the device driver software may be missing or corrupted.

1.Remove any discs from the optical drive.

2.Click Computer and then click System Monitor.

3.On the Hardware tab, identify the Storage Controller in the Type column.

4.Click the triangle next to the devices until you locate your optical drive. If the drive is listed, it should be functioning correctly.

A disc does not play

●Save your work and close all open programs before playing a CD or a DVD.

●Log off the Internet before playing a CD or a DVD.

●Be sure that you insert the disc properly.

●Be sure that the disc is clean. If necessary, clean the disc with filtered water and a lint-free cloth. Wipe from the center of the disc to the outer edge.

●Check the disc for scratches. If you find scratches, treat the disc with an optical disc repair kit available at many electronics stores.

●Disable Suspend mode before playing the disc.

Do not initiate Hibernation or Suspend while playing a disc. Otherwise, you may see a warning message asking if you want to continue. If this message is displayed, click No. After you click No, the computer may behave in either of the following ways:

◦Playback may resume.

– or –

◦The playback window in the multimedia program may close. To return to playing the disc, click the Play button in your multimedia program to restart the disc. In rare cases, you may need to exit the program and then restart it.

A movie is not visible on an external display

1.If both the computer display and an external display are turned on, press fn+f4 one or more times to switch between the 2 displays.

2.Configure the monitor settings to make the external display primary:

a.Right-click on a blank area of the computer desktop, and select Screen resolution.

b.Specify a primary display and a secondary display.

NOTE: When using both displays, the DVD image will not appear on any display designated as the secondary display.

80 Appendix A Troubleshooting and support

Image 90

Contents HP Notebook User Guide Product notice Safety warning notice Iv Safety warning notice Table of contents VGA Drives Performing a system recovery Backing up your information Cleaning products Page Welcome Finding informationFinding information Resources For information aboutGetting to know your computer TopTouchPad Lights Control Center System Power Management ButtonsKeys Fn keyEsc key Front Right Left Left Display Bottom Networking Using an Internet service provider ISP Using a Wlan Identifying wireless and network status iconsCreating a wireless connection Turning wireless devices on and offConnecting to an existing Wlan Setting up a new WlanProtecting your Wlan Roaming to another networkUsing a modem select models only Using Bluetooth wireless devices select models onlyConnecting to a wired network Connecting a modem cableConnecting a country- or region-specific modem cable adapter Connecting to a local area network LAN select models only Using the keyboard Keyboard and pointing devicesIdentifying the hotkeys Using the keyboard Using keypads Using the embedded numeric keypadUsing the integrated numeric keypad Turning the embedded numeric keypad on and offUsing the TouchPad Using an optional external numeric keypadTurning the TouchPad off and on Using TouchPad gestures NavigatingSelecting Setting pointing device preferences ScrollingPinching/Zooming Using the media activity keys MultimediaUsing the audio features Adjusting the volume Using the Webcam select models only Checking your audio functionsUsing video devices VGAConnecting an Hdmi device select models only Configuring audio for Hdmi select models only Power management Shutting down the computerInitiating and exiting Suspend Setting power optionsUsing power-saving states Initiating and exiting HibernationUsing power management Using battery powerUsing the Power icon Viewing the current power management settingsDisplaying the remaining battery charge Inserting or removing the battery Charging a battery Maximizing battery life Managing low battery levelsIdentifying low battery levels Conserving battery power Storing a batteryResolving a low battery level Using external AC power Disposing of a used batteryReplacing the battery Testing an AC adapter Drives Handling drivesReplacing or upgrading the hard drive Removing the hard driveLift the hard drive 3 out of the hard drive bay Drives Installing a hard drive Page Inserting an optical disc Using optical drives select models onlyIdentifying the installed optical drive Removing an optical discWhen the disc tray opens normally Page Using Digital Media Slot cards select models only External cards and devicesInserting a digital card Removing a digital card Using ExpressCards select models only Configuring an ExpressCardInserting an ExpressCard Using a USB device Removing an ExpressCardConnecting a USB device Removing a USB deviceUsing optional external devices Using optional external drivesMemory modules Page Page Page Page Security Protecting the computerUsing passwords Setting passwords in the operating systemSetting passwords in Computer Setup Managing an administrator password Entering an administrator passwordManaging a power-on password Using firewall software Entering a power-on passwordInstalling an optional security cable Backup and Recovery Performing a system recovery Backing up your informationPerforming a system recovery Backing up your information Using Computer Setup Computer SetupStarting Computer Setup Navigating and selecting in Computer SetupUpdating the Bios Restoring factory settings in Computer SetupDetermining the Bios version Downloading a Bios updateComputer is unable to start up Troubleshooting and supportTroubleshooting Computer screen is blankComputer is unusually warm Software is functioning abnormallyComputer is on but not responding An external device is not workingWireless network connection is not working Optical disc tray does not open for removal of a CD or DVDComputer does not detect the optical drive Disc does not playMovie is not visible on an external display Contacting customer support Labels ComponentCleaning your computer Cleaning productsSpecifications Input powerOperating environment Electrostatic discharge Index USBJacks