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  • This is pretty much expected behaviour, Wouldn't the same thing occur if you manually switched the cables, as opposed to using a switch box?
    – Psycogeek
    Commented Aug 4, 2015 at 23:35
  • @Psycogeek Sorry, perhaps my explanation wasn't clear. The signal doesn't just cut out while it's switching; it cuts off again and again every couple of seconds as long as I'm switched to my desktop.
    – Hayden Schiff
    Commented Aug 5, 2015 at 4:15
  • Ok now that is very clear. continually, never stops blinking, stays messed up ever after :-) Got it.
    – Psycogeek
    Commented Aug 5, 2015 at 4:22
  • Digital is usually an all or nothing thing. either it works or it doesnt at all, something has to be right on the edge of fail to glitch like that. the HDMI out of a computer is fully uncompressed blaze of data. If the wires total were to long for the wire quality, or the box was electronic switching type and not built well, it could cause that. One shorter good quality cable to the switch box would change any cable lenght issues a lot. A cheap manually switching video switch box, could be more simple and raw direct.
    – Psycogeek
    Commented Aug 5, 2015 at 7:20
  • The other possibility that causes it to blip out of operation at regular or random intervals, is if the cable itself (and box) had an outside interferance occuring. (and it is close to failing) A cell phone wi-fi signal, or even a very very close to the cable wireless input device or bluetooth. That is where ferrite beads on the cable might add a bit of help in reducing outside interferance.
    – Psycogeek
    Commented Aug 5, 2015 at 7:22