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Apple Computing Products:
macOS - Desktop Hardware
Flashing screen
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<blockquote data-quote="Slydude" data-source="post: 1925921" data-attributes="member: 131855"><p>If I'm understanding your symptoms correctly I've seen this before. I couldn't tell for sure from your post but are you using any adapters/connecters in addition to the cables?</p><p></p><p>I experienced this at one point for several weeks before tracing it down to the adapter I was using to connect the cable to the Thunderbolt port on my iMac. The failure on the adapter was intermittent and really inconsistent.</p><p></p><p>Edit: I suspect that the VGA connection is less prone to this issue because of the type of signal involved. IIRC VGA is an analog signal which will sometimes work if only part of the signal gets through. All digital signals tend to be an all or nothing thing. Someone correct me if I am wrong.</p></blockquote><p></p>
[QUOTE="Slydude, post: 1925921, member: 131855"] If I'm understanding your symptoms correctly I've seen this before. I couldn't tell for sure from your post but are you using any adapters/connecters in addition to the cables? I experienced this at one point for several weeks before tracing it down to the adapter I was using to connect the cable to the Thunderbolt port on my iMac. The failure on the adapter was intermittent and really inconsistent. Edit: I suspect that the VGA connection is less prone to this issue because of the type of signal involved. IIRC VGA is an analog signal which will sometimes work if only part of the signal gets through. All digital signals tend to be an all or nothing thing. Someone correct me if I am wrong. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Flashing screen
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