Quote:
Originally Posted by greenkiwi
Just checking, could this be a hardware issue? (faulty or overheating, i'm in an air conditioned office and the device is completely out in the open) I just got the device so if it is a hardware issue I'd rather return it and get a new one, while still inside my return window.
I'm guessing MonoPrice will not have a problem extending the window (by seeing all of this information here) so it isn't that big a deal... They'd rather know it works or doesn't work rather than just guess.
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Interesting thought about hardware, it might actually be a power problem. You're using the highest pixel clock available on DVI so putting the whole device in the worst case scenario from a power consumption point of view.
[Software developer alert: the following might be completely inaccurate and reflects conversations had with competent hardware engineers in DisplayLink quite some time ago]
As the device becomes warmer the power regulators lose efficiency and the device uses even more power, losing further efficiency and using more power. This additional power request might slightly lower the voltage on the USB coming from your Mac and it's possible that this brings the voltage arriving to the DVI encoder to a borderline situation where the device is still powered but just the encoder is randomly powered down. This would explain why the logs show a happy device and software.
To verify if this is the case then I'd try to connect the device through a self powered (with an external power supply) hub with just the device connected. If the blinking disappears then we might well deduce that your Mac cannot reliably power that device at that resolution.
Since it looks to be a borderline problem, normal component tolerances might resolve it and a different device could actually work well in most cases, but it also might be worse so if it's a power problem and you use the device on a desk I'd just use a powered hub if I were you.
Please let us know your findings!