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Lenovo Y460 manual Troubleshooting, Problems on changing graphics processing unit GPU

Models: Y460

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• Your screen saver or power management may be

Chapter 5. Troubleshooting

My screen goes blank while	• Your screen saver or power management may be
the computer is on.	enabled. Do one of the following to exit from the
	screen saver or to resume from sleep or hibernation
	mode:
	- Touch the touchpad.
	- Press any key on the keyboard.
	- Press the power button.
	- Press Fn+F2 to confirm whether the LCD screen
	has been turned off.

Problems on changing graphics processing unit (GPU)

When I right-click on the desktop, the Configure

Switchable Graphics option is not displayed on the pop up menu. Or when I slide and release the GPU switch on the front side of the computer, the Switcha- ble Graphics dialog box is not displayed.

The screen remains blank when I try to switch the GPU.

•Check the graphics device setting in BIOS setup utility. In BIOS setup utility, move the cursor to Configuration, make sure Switchable Graphics option is set active under Graphics Device.

•Check the operating system you are using. Switchable Graphics technology is currently available only on Windows Vista and Windows 7.

•Make sure your computer is not running an exclusive mode Direct3D or OpenGL application. If your computer is running either of the above applications, quit the application before you switch the GPU.

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Lenovo Y460 manual Troubleshooting, Problems on changing graphics processing unit GPU

Contents

User Guide Lenovo IdeaPad Y460First Edition Jan Copyright Lenovo Dear user Respective UsersExplanation of hard disk capacity II. A portion of the hard disk space is used for specific purposes Page Chapter 2. Learning the ContentsChapter 4. OneKey Rescue Chapter 6. Upgrading andAppendix F. Features and ContentsSpecifications Appendix C. Lenovo limitedImportant safety information Important safety information„ Read this first DangerUnpack Important safety informationInspect the covers of the computer and the AC adapter, especially parts with the following labels attached for any crack or damage DangerWorking place Important safety informationDo NOT use the computer in humid places such as a bathroom DangerOn using Important safety informationUse ONLY the power cord, power adapter and battery pack shipped with the computer and never use them with another product DangerDo NOT wrap the power cord around the power adapter or other objects Important safety informationService and upgrades Important safety informationviii Keep the covers closed whenever the computer is plugged inTop view Chapter 1. Getting to know your computerBuilt-in microphone Wireless module antennas Computer display Speakers Power buttonSystem status indicators Chapter 1. Getting to know your computerAmbient Light Sensor 10 Lenovo SlideNav bar Chapter 1. Getting to know your computerCap sensor buttonsChapter 1. Getting to know your computer Left-side viewVGA port HDMI port Fan louvers RJ-45 portConnects to eSATA or USB devices Connects to USB devicesYour computer comes with an optical drive, such as a CD DVD drive Note For details, see “Using AC adapter and battery” on page AC powerChapter 1. Getting to know your computer adapter jackwireless device switch specificswitch Slide and release this switch to change the GPUChapter 1. Getting to know your computer Bottom viewBattery latch- spring loaded Battery packBattery latch- manual Chapter 1. Getting to know your computer„ Connect to the power Chapter 2. Learning the basicsInstall the battery pack „ Read the manuals„ Turn on the computer „ Configure the operating system„ Putting your computer into sleep state or shutting it down Chapter 2. Learning the basicsChapter 2. Learning the basics „ Shutting down your computer„ Checking battery status Using AC adapter and battery„ Charging the battery Chapter 2. Learning the basicsChapter 2. Learning the basics „ Removing the battery packChapter 2. Learning the basics „ Handling the batteryChapter 2. Learning the basics Using the touchpadTouchpad Left click button Right click buttonChapter 2. Learning the basics „ GesturesPinch zoom Two-Finger ScrollingThree-Finger Flick Chapter 2. Learning the basicsPlace three fingers, slightly separated, down on the TouchPad surface „ Numeric keypad Using the keyboardChapter 2. Learning the basics Chapter 2. Learning the basics „ Function key combinationsFn + F6 Chapter 2. Learning the basicsFn + F7 Fn + F8Chapter 2. Learning the basics Special keys and buttonsa OneKey Rescue System button b Lenovo SlideNav bar Chapter 2. Learning the basicsNote For details, see the help file of Lenovo SlideNav Application Volume Up button Volume Down buttonChapter 2. Learning the basics c Cap Sensor buttonsHard disk drive indicator Bluetooth indicator System status indicatorsTouchpad indicator Wireless communication indicator„ Attaching a security lock not supplied Securing your computerChapter 2. Learning the basics „ Using passwords „ Using VeriFacescreen in BIOS setup utility Chapter 2. Learning the basics„ Using media cards not supplied Connecting external devicesChapter 2. Learning the basics Inserting a media card Chapter 2. Learning the basics1 Gently pull the dummy card out of the media card slot Removing a media card„ Connecting a Bluetooth device specific models only „ Connecting a universal serial bus USB deviceEnabling Bluetooth communications Chapter 2. Learning the basicsGPU is short for graphics processing unit Chapter 2. Learning the basicsTo change the GPU, do the following Wired connection Chapter 3. Using the InternetChapter 3. Using the Internet „ Software configuration„ Hardware connection CableChapter 3. Using the Internet Wireless connectionWi-Fi WiMAXChapter 3. Using the Internet „ Using Wi-Fi/WiMax specific models onlyEnabling wireless connection Software configurationChapter 3. Using the Internet „ Using Mobile Broadband specific models onlyInserting the SIM card Chapter 3. Using the InternetTo insert the SIM card Removing the SIM card Chapter 3. Using the InternetNotched Corner Chapter 3. Using the Internet OneKey Rescue System Chapter 4. OneKey Rescue System„ Introduction For more instructions, see the help file of Lenovo OneKey Recovery „ Using Lenovo OneKey Recovery Within Windows operating systemChapter 4. OneKey Rescue System Chapter 4. OneKey Rescue System „ Using Lenovo OneKey Rescue System Without Windows operating systemFrequently Asked Questions Chapter 5. TroubleshootingWhere are the recovery discs? Chapter 5. TroubleshootingWhere can I find warranty information? How can I install the device drivers?What can I do if the backup process fails? Chapter 5. TroubleshootingWhen do I need to restore the system to the factory status? Chapter 5. Troubleshooting TroubleshootingDisplay problems Problems on changing graphics processing unit GPU Chapter 5. TroubleshootingYour screen saver or power management may be A Password problem Chapter 5. TroubleshootingIf you are outputting the screen to an external Keyboard problems Chapter 5. TroubleshootingSleep or hibernation problems Fn+F8The computer does not return from sleep mode and does not work Chapter 5. TroubleshootingComputer screen problems Chapter 5. TroubleshootingSound problems when the volume is turnedBattery problems Chapter 5. TroubleshootingA hard disk drive problem A startup problemOneKey Rescue System problems Chapter 5. TroubleshootingOther problems You are not currently using a Windows operatingDo not connect or disconnect any external device Chapter 5. TroubleshootingReplacing the battery Chapter 6. Upgrading and replacing devices„ To replace the battery Chapter 6. Upgrading and replacing devices Chapter 6. Upgrading and replacing devices Replacing memory5 Remove the CPU/Memory compartment cover Chapter 6. Upgrading and replacing devices7 Insert the notched end of the DIMM into the socket Chapter 6. Upgrading and replacing devicesChapter 6. Upgrading and replacing devices Chapter 6. Upgrading and replacing devices Replacing the hard disk driveHandling a hard disk drive Chapter 6. Upgrading and replacing devices 3 Remove the battery packTo replace the hard disk drive, do the following 2 Close the computer display, and then turn the computer over5 Remove the frame fixing screw Chapter 6. Upgrading and replacing devices6 Pull the tab in the direction shown by arrow 7 Take out the hard disk drive secured in a metal frameChapter 6. Upgrading and replacing devices A Reinstall the frame fixing screw B Reinstall the compartment coverChapter 6. Upgrading and replacing devices Appendix A. Getting help and service Getting help on the Web Appendix A. Getting help and serviceCalling the customer support center The following items are not covered Appendix A. Getting help and serviceMachine Type and Model Appendix A. Getting help and serviceAppendix A. Getting help and service Lenovo warranty service telephone numbersGetting help around the world „ Be careful about where and how you work Appendix B. Use and care informationCaring for your computer Appendix B. Use and care information „ Notice of static-electricityAppendix B. Use and care information „ Be gentle with your computer„ For outdoor use „ Carry your computer properlyAppendix B. Use and care information Appendix B. Use and care information „ Handle storage media and drives properly„ Take care in setting passwords „ Data safety„ Other important tips Appendix B. Use and care informationDo not modify or tape the latches to keep the display open or closed Appendix B. Use and care information„ Ergonomic information Accessibility and comfortAppendix B. Use and care information „ Questions about vision? „ What if you are traveling?Appendix B. Use and care information „ General tips for maintenance MaintenanceAppendix B. Use and care information Appendix B. Use and care information Update device drivers and BIOS when neededAppendix B. Use and care information „ Cleaning the cover of your computerAppendix B. Use and care information „ Cleaning your computer keyboardAppendix B. Use and care information „ Cleaning your computer display„ What this warranty covers Appendix C. Lenovo limited warranty„ What your service provider will do to correct problems „ How to obtain warranty serviceAppendix C. Lenovo limited warranty Information.” Appendix C. Lenovo limited warrantyAppendix C. Lenovo limited warranty „ Replacement of a product or part„ Your additional responsibilities Appendix C. Lenovo limited warranty„ Use of personal information Appendix C. Lenovo limited warranty „ What this warranty does not cover„ Limitation of liability Appendix C. Lenovo limited warrantyAppendix C. Lenovo limited warranty „ Dispute resolution„ Other rights Appendix C. Lenovo limited warranty„ European Economic Area EEA „ Lenovo Turkey address Appendix C. Lenovo limited warrantyLENOVO TECHNOLOGY B.V. TURKIYE ISTANBUL SUBESI Posta Kodu Tel FaxAppendix C. Lenovo limited warranty Warranty informationAppendix C. Lenovo limited warranty „ Types of warranty service1 Customer Replaceable Unit “CRU” Service 2 On-site Service Appendix C. Lenovo limited warrantyUnder On-Site Service, your Service Provider will either repair or exchange the product at your location. You must provide a suitable working area to allow disassembly and reassembly of the Lenovo product. For some products, certain repairs may require your Service Provider to send the product to a designated service center 3 Courier or Depot Serviceproduct as it sees fit. For Mail-in Service, the product will be returned to you at Lenovos expense, unless your Service Provider specifies otherwise Appendix C. Lenovo limited warranty5 Product Exchange Service Appendix D. Customer replaceable units CRUs Your computer contains the following types of internal CRUs Appendix D. Customer replaceable units CRUsLenovo United States, Inc 1009 Think Place - Building One Appendix E. NoticesMorrisville, NC U.S.A Attention Lenovo Director of Licensing Appendix E. Notices Appendix E. Notices „ Export classification noticeAppendix E. Notices ENERGY STAR model informationAppendix E. Notices Table 1. ENERGY STAR power-management features, by operating systemWindows „ Wireless interoperability Wireless related informationAppendix E. Notices Appendix E. Notices „ Usage environment and your healthAppendix E. Notices „ Safety information related to Mobile BroadbandAppendix E. Notices 3 Use of mobile devices on board aircraft is explicitly prohibited by many airlines companies, especially during take-off and landing. The built-in Mobile Broadband module on your computer is a low-power radio transceiver. When it is turned on, it intermittently receives and transmits radio frequency RF energy which could cause interference with the operation of the airplane communication or navigation system. Refer to rules or regulations of your airline company for Mobile Broadband use. Never enable Mobile Broadband feature on your computer unless you are explicitly permitted to do so„ Federal Communications Commission FCC Statement Electronic emissions noticesAppendix E. Notices Appendix E. Notices „ Industry Canada Class B Emission Compliance Statement„ German Class B Compliance Statement „ Avis de conformité à la réglementation d’Industrie CanadaAppendix E. Notices Deutschland Appendix E. NoticesAppendix E. Notices „ European Union Compliance Statement Class B Compliance„ Japanese VCCI Class B Statement „ Lenovo Product Service InformationAppendix E. Notices „ Korea Class B „ Japan Compliance Statement for Power line HarmonicsAppendix E. Notices Türkiye EEE Yönetmeliğine Uygunluk Beyanı Turkish statement of complianceWEEE and recycling statements „ General recycling statementAppendix E. Notices EU WEEE statements„ Collecting and Recycling a Disused Lenovo Computer or Monitor Japan recycling statementsAppendix E. Notices „ Disposing of a Lenovo Computer Components „ Disposing a Disused Battery Pack from Lenovo Notebook ComputersAppendix E. Notices Notice for users in the U.S.A Notice on deleting data from your hard diskAppendix E. Notices Appendix E. Notices Format your hard disk, using the software for initializing itModel Name IdeaPad Y460 Appendix F. Features and SpecificationsForm Factor SystemI/O Ports Appendix F. Features and SpecificationsLenovo IdeaPad VeriFace OneKey Index Index Index Warranty informationInteroperability LENOVO If your product is not working correctlyDO NOT RETURN IT TO THE STORE Lenovo China P/N 147003036 Printed in China New World. New Thinking.TM