Sony VGN-FJ1S/L User Manual page 133

Movie playback shows dropped frames when my computer is running on the battery
The battery is running out of power. Connect the computer to an AC power source.
The images captured by the built-in MOTION EYE camera flicker
This problem occurs when you use the camera under fluorescent lights due to the mismatch between lighting output
frequency and shutter speed.
To reduce flicker noise, change the pointing direction of the camera or the screen brightness. In some software applications,
you can set an appropriate value to Flickness, one of the camera properties, to eliminate flicker noise.
The video input from the built-in MOTION EYE camera is suspended for a few seconds
The video input may be suspended for a few seconds if
a shortcut key with the Fn key is used.
the CPU load increases.
This is normal and does not indicate a malfunction.
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Troubleshooting