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Lenovo Y550P manual „ Sleep or hibernation problems, Troubleshooting

Models: Y550P

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Chapter 5. Troubleshooting

Sleep or hibernation problems

The computer enters sleep mode unexpectedly.

If the processor overheats, the computer automatically enters sleep mode to allow the computer to cool and to protect the processor and other internal components. Check the settings for sleep mode.

The computer enters sleep mode immediately after Power-on self-test (POST).

Make sure that:

The battery is charged.

The operating temperature is within the acceptable range. See “Specifications” on page 103.

If the battery is charged and the temperature is within range, have the computer serviced.

The critical low-battery error message appears, and the computer immediately turns off.

The battery power is getting low. Connect the AC adapter to the computer, or replace the battery with a fully charged one.

The computer does not return from sleep mode and the computer does not work.

If the computer does not return from sleep mode, it may have entered hibernation mode automatically because the battery is depleted. Check the sleep indicator.

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Lenovo Y550P manual „ Sleep or hibernation problems, Troubleshooting, The computer enters sleep mode unexpectedly

Contents

User Guide Lenovo IdeaPad Y550PFirst Edition July Copyright Lenovo ENERGY STAR model information Turn off hard disks After 20 minutes Hibernate After 1 hour Table 1. ENERGY STAR power-management features, by operating systemWindows Power plan Energy Star Turn off the display After 10 minutes Put the computer to sleep After 25 minutes Advanced power settingsExplanation of hard disk capacity II. A portion of the hard disk space is used for specific purposes Chapter 5. Troubleshooting ContentsUsing Your Computer Using External DevicesAppendix A. Lenovo Limited ContentsChapter 7. Safety, Use and Care Chapter 6. Getting Help andTop view Chapter 1. Getting to Know Your Computerc d e i Computer display Power button Wireless LAN antennasVolume buttons Chapter 1. Getting to Know Your ComputerChapter 1. Getting to Know Your Computer Left-side viewd e f g Make sure that none of the fan louvers are blocked, otherwise Chapter 1. Getting to Know Your ComputerSecurity keyhole Fan louversTV-in jack specific models only AC power adapter jackRight-side view Chapter 1. Getting to Know Your ComputerChapter 1. Getting to Know Your Computer Integrated wireless device switchSystem status indicators Front viewChapter 1. Getting to Know Your Computer Bottom viewSubwoofer Battery latch - spring loadedBattery latch - manual Chapter 1. Getting to Know Your ComputerUsing the touchpad Chapter 2. Using Your Computerb a cd Pinch Chapter 2. Using Your Computer„ Gestures „ Palm CheckChapter 2. Using Your Computer Using the keyboard„ Numeric keypad „ Function key combinations Chapter 2. Using Your ComputerFn + F1 Put your computer in sleep mode Chapter 2. Using Your Computerd e f g „ Touch inductive panel and volume buttonsChapter 2. Using Your Computer Special keys and buttonsLenovo SlideNav bar Chapter 2. Using Your ComputerVolume buttons ~ Touch inductive panel ~Your computer comes with an optical drive, such as a CD/DVD drive Using the optical driveUsing memory cards Chapter 2. Using Your ComputerOnly use the memory card types listed above for more information on usage, read the instructions shipped with the memory card Chapter 2. Using Your ComputerUsing the integrated camera Using lenovo remote control specific models onlyChapter 2. Using Your Computer „ Using RJ-45 port Using the internetChapter 2. Using Your Computer Chapter 2. Using Your Computer „ Using wireless LANSecuring your computer Chapter 2. Using Your Computer„ Attaching a security lock optional „ Using passwords „ Using VeriFaceChapter 2. Using Your Computer Chapter 2. Using Your Computer Installing device driversUsing battery and AC adapter „ Checking battery statusChapter 2. Using Your Computer „ Using the AC adapterDanger „ Charging the battery„ Handling the battery Chapter 2. Using Your ComputerDanger Chapter 2. Using Your Computerƒ Replace only with a battery of the type recommended by Lenovo DangerConnecting a Universal Serial Bus USB device Chapter 3. Using External DevicesChapter 3. Using External Devices Chapter 3. Using External Devices Connecting an eSATA/USB port deviceChapter 3. Using External Devices Connecting a PC card deviceOnly use the ExpressCard/34 module 1 Push the ExpressCard/34 module until you hear a click Chapter 3. Using External Devices„ Inserting an ExpressCard/34 module „ Removing an ExpressCard/34 module„ Connecting a VGA monitor Connecting an external displayChapter 3. Using External Devices Chapter 3. Using External Devices „ Connecting an HDMI monitorChapter 3. Using External Devices Connecting a headphone and audio deviceListening to music at high volume over extended periods of time may damage your hearing Chapter 3. Using External DevicesChapter 3. Using External Devices Connecting an external microphoneChapter 3. Using External Devices „ Enabling Bluetooth communicationsConnecting a Bluetooth device specific models only 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. TroubleshootingHow can I install the device drivers? Chapter 5. TroubleshootingWhere are the recovery discs? Where can I find warranty information?When do I need to restore the system to the factory status? Chapter 5. TroubleshootingWhen I turn on the computer, nothing appears on the screen Troubleshooting„ Display problems Chapter 5. TroubleshootingMy screen goes blank while the computer is on Chapter 5. Troubleshootingƒ Touch the touch pad ƒ Press any key on the keyboard I forgot my password „ A Password problem„ Keyboard problems Chapter 5. TroubleshootingChapter 5. Troubleshooting „ Sleep or hibernation problemsThe computer enters sleep mode unexpectedly Chapter 5. Troubleshooting „ Computer screen problemsThe screen is blank You get poor or no playback of video, DVD or game applications Chapter 5. TroubleshootingThe screen is unreadable or distorted Incorrect characters appear on the screenYour computer operates after the battery status indicator shows empty „ Sound problems„ Battery problems Chapter 5. TroubleshootingChapter 5. Troubleshooting „ A hard disk drive problem„ A startup problem „ OneKey Rescue System problemsYour computer does not respond „ Other problemsChapter 5. Troubleshooting Fail to restore system partition to factory defaultGetting help and service Chapter 6. Getting Help and ServiceGetting help on the Web Chapter 6. Getting Help and ServiceCalling the customer support center The following items are not covered Chapter 6. Getting Help and Serviceƒ Machine Type and Model Chapter 6. Getting Help and ServiceGetting help around the world Chapter 6. Getting Help and ServiceWarranty Service Telephone Numbers Lenovo warranty service telephone numbersImportant safety information Chapter 7. Safety, Use and Care Information„ Conditions that require immediate action Chapter 7. Safety, Use and Care InformationChapter 7. Safety, Use and Care Information „ Safety guidelinesChapter 7. Safety, Use and Care Information „ Service and upgradesDanger „ Power cords and power adaptersChapter 7. Safety, Use and Care Information DangerProtect power cords and power adapters from liquids. For instance, do not leave your power cord or power adapter near sinks, tubs, toilets, or on floors that are cleaned with liquid cleansers. Liquids can cause a short circuit, particularly if the power cord or power adapter has been stressed by misuse. Liquids also can cause gradual corrosion of power cord terminals and/or the connector terminals on a power adapter, which can eventually result in overheating Chapter 7. Safety, Use and Care InformationDanger Chapter 7. Safety, Use and Care Information„ Extension cords and related devices „ Plugs and outletsChapter 7. Safety, Use and Care Information „ Power supply statementDanger Chapter 7. Safety, Use and Care Information „ Lithium coin cell battery noticeDanger „ Heat and product ventilation Chapter 7. Safety, Use and Care InformationDanger ƒ Keep the cover closed whenever the computer is plugged in Chapter 7. Safety, Use and Care InformationChapter 7. Safety, Use and Care Information „ CD and DVD drive safetyDanger Chapter 7. Safety, Use and Care Information „ Electrical current safety informationDanger To connect 1. Turn everything OFF Chapter 7. Safety, Use and Care Information„ Laser compliance statement Chapter 7. Safety, Use and Care InformationWhen a CD or DVD drive is installed, note the following handling instructions Chapter 7. Safety, Use and Care InformationDanger „ Liquid crystal display LCD notice Chapter 7. Safety, Use and Care InformationDanger Chapter 7. Safety, Use and Care Information „ Be careful about where and how you workCaring your computer ƒ Place liquids away from your computer to avoid spills, and keep your computer away from water to avoid the danger of electrical shock Chapter 7. Safety, Use and Care InformationNot all such appliances cause a significant electrostatic charge Chapter 7. Safety, Use and Care Information„ For outdoor use Chapter 7. Safety, Use and Care Information„ Be gentle with your computer „ Carry your computer properlyChapter 7. Safety, Use and Care Information „ Data safety„ Handle storage media and drives properly Chapter 7. Safety, Use and Care Information „ Take care in setting passwords„ Other important tips Chapter 7. Safety, Use and Care Information „ Cleaning the cover of your computerChapter 7. Safety, Use and Care Information „ Cleaning your computer keyboard„ Cleaning your computer display Accessibility and comfortChapter 7. Safety, Use and Care Information „ Ergonomic information Chapter 7. Safety, Use and Care InformationGeneral Posture Below are some general recommendations for assuming a healthy working posture. It is best to periodically make minor modifications in your working posture to deter the onset of discomfort caused by long periods of working in the same position. Frequent, short breaks from your work will also help to prevent any minor discomfort associated with your working posture Chapter 7. Safety, Use and Care Information„ Questions about vision? MaintenanceChapter 7. Safety, Use and Care Information „ What if you are traveling?Chapter 7. Safety, Use and Care Information „ General tips for maintenanceƒ Update device drivers and BIOS when needed Chapter 7. Safety, Use and Care Informationƒ If required, you can find your country’s Customer Support Center at the following Web address http//consumersupport.lenovo.com Chapter 7. Safety, Use and Care Information„ What this warranty covers Appendix A. Lenovo Limited Warranty„ What your service provider will do to correct problems „ How to obtain warranty serviceAppendix A. Lenovo Limited Warranty Appendix A. Lenovo Limited Warranty „ Replacement of a product or partInformation.” „ Your additional responsibilities Appendix A. Lenovo Limited Warranty„ Use of personal information Appendix A. Lenovo Limited Warranty „ What this warranty does not cover„ Limitation of liability Appendix A. Lenovo Limited WarrantyAppendix A. Lenovo Limited Warranty „ Dispute resolution„ Lenovo Turkey address Appendix A. Lenovo Limited Warranty„ Other rights „ European Economic Area EEAAppendix A. Lenovo Limited Warranty Warranty informationAppendix A. Lenovo Limited Warranty „ Types of warranty service1 Customer Replaceable Unit “CRU” Service 3 Courier or Depot Service Appendix A. Lenovo Limited Warranty2 On-site Service Under 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 center5 Product Exchange Service Appendix A. Lenovo Limited WarrantyUnder Product Exchange Service, Lenovo will ship a replacement product to your location. You are responsible for its installation and verification of its operation. The replacement product becomes your property in exchange for the failed product, which becomes the property of Lenovo. You must pack the failed product in the shipping carton used to ship the replacement product and return it to Lenovo. Transportation charges, both ways, are paid by Lenovo. Failure to use the carton in which the replacement product was received may result in your responsibility for damage to the failed product during shipment. You may be charged for the replacement product if Lenovo does not receive the failed product within thirty 30 days of your receipt of the replacement product Appendix B. Customer Replaceable Units CRUs Size Appendix C. SpecificationsSpecifications Environment ƒ Temperatureƒ Input rating of the AC adapter 100-240 V ac, 50 to 60 Hz ƒ 90 W Appendix C. SpecificationsBattery ƒ Lithium-ion Li-Ion battery pack Power source AC adapterLenovo United States, Inc 1009 Think Place - Building One Appendix D. NoticesMorrisville, NC U.S.A Attention Lenovo Director of Licensing Appendix D. Notices „ Television output notice „ Export classification noticeAppendix D. Notices „ Wireless interoperability Wireless related informationAppendix D. Notices Appendix D. Notices „ Usage environment and your healthAppendix D. Notices ƒ Using the integrated wireless cards on board of airplanes, or in hospitalsAppendix D. Notices „ Products with television tuner options installed„ Note to CATV system installer TV tuner informationAppendix D. Notices „ Example of antenna groundingThe following notice applies to all countries and regions Appendix D. NoticesDanger „ Federal Communications Commission FCC Statement Electronic emissions noticesAppendix D. Notices „ Avis de conformité à la réglementation d’Industrie Canada „ Industry Canada Class B Emission Compliance StatementAppendix D. Notices Appendix D. Notices „ German Class B Compliance StatementInformationen in Hinsicht EMVG Paragraf 4 Abs. 1 Appendix D. NoticesAppendix D. Notices „ European Union Compliance Statement Class B Compliance„ Japanese VCCI Class B Statement „ Lenovo Product Service InformationAppendix D. Notices „ Korea Class B „ Japan Compliance Statement for Power line HarmonicsAppendix D. Notices „ General recycling statement Turkish statement of complianceTürkiye EEE Yönetmeliğine Uygunluk Beyanı WEEE and recycling statementsAppendix D. Notices EU WEEE Statements„ Collecting and Recycling a Disused Lenovo Computer or Monitor Japan Recycling StatementsAppendix D. Notices „ Disposing of a Lenovo Computer Components „ Disposing a Disused Battery Pack from Lenovo Notebook ComputersAppendix D. Notices Notice for Users in the U.S.A Notice on deleting data from your hard diskAppendix D. Notices Appendix D. Notices ƒ Using the preinstalled recovery program, bring the hard disk back to factory-ship stateTrademarks Appendix D. NoticesBluetooth IndexIndex Index Index Wireless LANUsage environment Page LENOVO If your product is not working correctlyDO NOT RETURN IT TO THE STORE Lenovo China P/N 147002625 Printed in China New World. New Thinking.TM