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manual abstract
Troubleshooting > Display n151 N Display Why did my screen go blank? . Your computer screen may go blank if the computer loses power or enters a power saving mode (Sleep or Hibernate). If the computer is in LCD (Video) Sleep mode, press any key to bring the computer back into Normal mode. See Using the Power Saving Modes (page 92) for more information. . Make sure your computer is securely plugged into a power source and turned on and the power indicator light is lit. . If your computer is using battery power, make sure the battery pack is installed properly and is charged. See Using the Battery Pack (page 18) for more information. . If the display output is directed to the external display, press the Fn+F7 keys. See Combinations and Functions with the Fn Key (page 29) for more information. What should I do if I do not see proper images or videos? . Be sure to select Highest (32 bit) for the display colors before using video/image software or starting DVD playback. Selecting any other option may prevent such software from displaying images successfully. To change the display colors, follow these steps: 1 Right-click on the desktop and select Personalize. 2 Click Display Settings. 3 Select Highest (32 bit) under Colors. . Do not change the display resolution or colors while using video/image software or playing DVDs, as it may cause unsuccessful playback/display or unstable system operations. Additionally, it is recommended you disable your screen saver before starting DVD playback. If the screen saver is enabled, it may be activated during DVD playback and prevent it from running successfully. Some screen savers have been found to even change the display resolution and colors. Troubleshooting > Display n152 N What should I do if no image is displayed on my TV screen or external display connected to the HDMI output port? Make sure you are using an HDCP-compliant display. The copyright protected contents are not displayed on a non-HDCP compliant display. See Connecting a TV (page 72) or Connecting a Computer Display (page 69) for more information. Why doesn't my screen display a video? . If the display output is directed to the external display and the external display is disconnected, you cannot display a video on your computer screen. Stop video playback, change the display output to the computer screen, and then restart video playback. See Selecting Display Modes (page 75) for changing the display output. Alternatively, you can press the Fn+F7 keys to change the display output. See Combinations and Functions with the Fn Key (page 29) for more information. . The video memory of your computer may be insufficient for displaying high resolution videos. In this case, lower the resolution of the LCD screen. To change the screen resolution, follow these steps: 1 Right-click on the desktop and select Personalize. 2 Click Display Settings. 3 Move the slider under Resolution to the left to reduce or to the right to increase the screen resolution. . You can check the total amount of the graphics and video memory available. Right-click on the desktop, select Personalize, and click Display Settings, Advanced Settings, and the Adaptor tab. The displayed value may be different from the actual amount of memory on your computer. What should I do if my screen is dark? Press the Fn+F6 keys to brighten your computer screen. Troubleshooting > Display n153 N What should I do if the LCD brightness of my screen changes? . The LCD brightness setting, adjusted with the Fn+F5/F6 keys, is temporary and may be restored to the original setting when your computer returns to Normal mode from Sleep or Hibernate mode. To save your preference for the brightness, follow these steps: 1 Right-click the power status icon on the taskbar and select Power Options. 2 Click Change plan settings under the current power plan. 3 Click Change advanced power settings. 4 Select the Advanced settings tab. 5 Double-click Display. 6 Adjust the LCD brightness setting in the item for brightness adjustment. Troubleshooting > Display n154 N . Your computer screen may temporarily go blank: . When you connect or disconnect the AC adapter . Immediately after you start the computer with battery power To save your preference for the brightness, follow these steps: 1 Click Start and Control Panel. 2 Click Hardware and Sound. 3 Click Change when the computer sleeps under Power Options. 4 Click Change advanced power settings. 5 Scroll down the list and double-click ATI Graphics Power Settings. 6 Double-click the option for the ATI POWERPLAY™ settings. 7 Change the current option for On battery. 8 Click OK. Troubleshooting > Display n155 N What should I do if the external display remains blank? If you cannot change the display output with the Fn+F7 keys, you need to change the settings for the external display with the VAIO Control Center. To change the settings, launch the VAIO Control Center, select the control item for the external display, and then click to select th...
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