MacBook Pro and USB "too much power" problems

wiobyrne · 06-11-2015, 11:51 AM

Hi,

I have a MacBook Pro (13-inch, Mid 2010) with the 2.4 GHz Intel Core Duo. I purchased the BVU195 to run a third monitor.

Currently, I have an extra monitor plugged in through a VGA adapter to the display port. I downloaded the beta of the software and tried using the BVU195 to connect a third monitor using the VGA adapter.

As soon as I plug in the BVU195 to the Mac, I get the following warning:
USB Devices Disabled. Unplug the device using too much power to re-enable USB devices.

I tried uninstalling the software, and then installing the regular software...no luck.

When I plug in the USB and get the warning, the picture on the VGA connected monitor through the display port starts flickering as well.

What am I doing wrong? Thanks in advance.
-Ian

Ludacrisvp · 07-23-2015, 06:03 PM

probably the only thing you could do is to run this via a powered external USB hub.

MAC · 08-04-2015, 06:54 AM

Quote:

Originally Posted by Ludacrisvp

probably the only thing you could do is to run this via a powered external USB hub.

I agree. Never tried running two USB monitors un-powered but I am pretty sure you will need a powered USB hub.

Carlo · 08-06-2015, 06:21 AM

Yes this is all about power available. In this case the device exceeds the power available from the host. As mentioned by Ludacrispv and MAC you'll need a powered hub. Or a powered dock instead of the adapter.

Carlo

06-11-2015, 11:51 AM	#1
wiobyrne Junior Member Join Date: Jun 2015 Posts: 1	MacBook Pro and USB "too much power" problems Hi, I have a MacBook Pro (13-inch, Mid 2010) with the 2.4 GHz Intel Core Duo. I purchased the BVU195 to run a third monitor. Currently, I have an extra monitor plugged in through a VGA adapter to the display port. I downloaded the beta of the software and tried using the BVU195 to connect a third monitor using the VGA adapter. As soon as I plug in the BVU195 to the Mac, I get the following warning: USB Devices Disabled. Unplug the device using too much power to re-enable USB devices. I tried uninstalling the software, and then installing the regular software...no luck. When I plug in the USB and get the warning, the picture on the VGA connected monitor through the display port starts flickering as well. What am I doing wrong? Thanks in advance. -Ian

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07-23-2015, 06:03 PM	#2
Ludacrisvp Junior Member Join Date: Jul 2013 Posts: 6	probably the only thing you could do is to run this via a powered external USB hub.

08-06-2015, 06:21 AM	#4
Carlo Mac Team Join Date: Feb 2009 Posts: 606	Yes this is all about power available. In this case the device exceeds the power available from the host. As mentioned by Ludacrispv and MAC you'll need a powered hub. Or a powered dock instead of the adapter. Carlo