DisplayLink software resets with quad monitors

Carlo · 07-14-2012, 07:17 AM

I think it's a power problem. From the logs is seems that one adapter is sometimes falling off the bus, probably because it does not receive enough power, and then come back.
It looks like you have 4 adapters connected to a single hub. They are all nearly at maximum resolution so they're going to draw maximum current when something is moving on the screen. A standard 4 port hub power supply can't usually power more than 2/3 adapters in these conditions. A 7 port hub supply can usually power 3/4.
I'd move at least one adapter to a different hub or connect it directly to the computer, or buy a bigger power supply for the hub.

Carlo

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

07-14-2012, 07:17 AM	#2
Carlo Mac Team Join Date: Feb 2009 Posts: 606	I think it's a power problem. From the logs is seems that one adapter is sometimes falling off the bus, probably because it does not receive enough power, and then come back. It looks like you have 4 adapters connected to a single hub. They are all nearly at maximum resolution so they're going to draw maximum current when something is moving on the screen. A standard 4 port hub power supply can't usually power more than 2/3 adapters in these conditions. A 7 port hub supply can usually power 3/4. I'd move at least one adapter to a different hub or connect it directly to the computer, or buy a bigger power supply for the hub. Carlo