Why doesn't my screen display a video, What should i do if my screen is dark – Sony VGN-UX490N User Manual
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Troubleshooting
Why doesn't my screen display a video?
❑ If the external display is selected for the display output 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
for changing the display output. Alternatively, you can use VAIO
Touch Launcher to change the display output. See the help file on the software 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 the desktop and select Personalize.
2
Click Display Settings.
The Display Settings window appears.
3
Move the slider under Resolution to the left to reduce or to the right to increase the screen resolution.
✍
You can confirm the value of the total available graphics memory and video memory. Right-click on the desktop, select Personalize, and click Display
Settings, Advanced Settings, and the Adaptor tab. The value may be displayed differently from the actual memory on your computer.
What should I do if my screen is dark?
Use VAIO Touch Launcher to brighten your computer screen. See the help file on the software for more information.