Lenovo ThinkPad i Series 1124 ThinkPad 240 User's Reference that shipped with - Page 107
Suspend or hibernation problems, Control Panel
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Troubleshooting charts Suspend or hibernation problems Problem The computer enters suspend mode automatically. Performance degrade when the computer gets hot during use. The computer enters suspend mode immediately after POST (the suspend indicator is on). The computer turns on and immediately turns off. The computer does not return from suspend mode, or the suspend lamp stays on and the computer does not work. The LCD is blank after resuming. Your computer does not enter suspend or hibernation mode. The computer does not enter hibernation mode with the Fn+F9 key combination. Action The computer enters suspend mode automatically when the processor temperature reaches a certain level. This is not a defect. The processor speed might decrease under the following conditions: Use in a hot environment. High-powered processing that requires high-power consumption. This is not a defect. Make sure that: The battery pack is charged. The operating temperature is within the acceptable range. Refer to the User's Reference. If these items are correct, have the computer serviced. The battery pack power is getting low. Connect the AC Adapter to the computer, or replace the battery pack with a fully charged one. The computer automatically enters suspend or hibernation mode when the battery power is exhausted. Do one of the following: 1. Connect the AC Adapter to the computer. 2. Replace the battery pack with a fully charged one; then press Fn. Check if an external monitor was connected before the computer entered suspend mode. Do not disconnect the external monitor while the computer is in suspend mode or hibernation mode. If no external monitor is attached when the computer resumes, the LCD remains blank and output is not displayed. This restriction does not depend on the resolution value. Check if the suspend or hibernation options are set. Make sure the hibernation file is created. (See the Online User's Guide.) Make sure the hibernation function is created. (See Online User's Guide.) To enter hibernation mode, stop the communication program, and then remove the PC Card or turn off power to the PC Card slot using the Control Panel. Chapter 4. Solving computer problems 95