Might be worth trying to reset the video output of the PS3. Reset PlayStation 3 Video Output. 1) Turn off the power to your PS3 2) Turn it back on again 3) While turning it on hold down the power button until you see something on the screen. This will completely reset the video output of your PlayStation 3 to the factory default output, once done you can then go into the PlayStation 3's video settings and configure them to your liking.
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