I have an HP P6520Y desktop that I have hooked to my TV with a DVI output cable to DVI input, then DVI input adapter to an HDMI input connected to TV. My computer audio output is an Optical Audio cable directly to surround sound receiver. This works great, but lately the video output ONLY to the TV occasionally blacks out for a few seconds, then back on for a long period of time. During the blackouts, the audio still runs fine, it is a video blackout only. Any ideas???
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