Image and sound appear when entering the iFFS (Intel Fast Flash Standby) mode - ThinkPad
When the system wakes from S3 (standby/suspend) power state with S3->S0->S4 transition of 30 Day Standby, some video playback software plays the movie during the S0 (working) power state. This lasts for about 10 to 20 seconds.
The following ThinkPad system running Windows 7 configured with 30 Day Standby may be affected by this symptom:
The user should stop the video playback before entering the system into Sleep mode and then uncheck "Enable 30 Day Standby".