Blank screen in yosemite

Carlo · 01-04-2016, 03:37 PM

Hi Sean,

So for the hub issue:
The logs show the device being briefly recognised but no longer being reachable at some point. It could still be a problem with the hub or maybe you have some virtualisation software running that is set up to capture the device? I'd check the settings for VirtualBox for example.
Unfortunately I can't tell from the logs the silicon manufacturer for the hub. One experiment to try is using a USB 2 cable between hub and device. Another using the hub with no other devices connected to it.

For the corruption issue:
Could not find specific errors in the logs. A picture of the display (not a screenshot) showing the corruption would give a pretty good idea if it's SW or HW.

Cheers,
Carlo

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01-04-2016, 03:37 PM	#6
Carlo Mac Team Join Date: Feb 2009 Posts: 606	Hi Sean, So for the hub issue: The logs show the device being briefly recognised but no longer being reachable at some point. It could still be a problem with the hub or maybe you have some virtualisation software running that is set up to capture the device? I'd check the settings for VirtualBox for example. Unfortunately I can't tell from the logs the silicon manufacturer for the hub. One experiment to try is using a USB 2 cable between hub and device. Another using the hub with no other devices connected to it. For the corruption issue: Could not find specific errors in the logs. A picture of the display (not a screenshot) showing the corruption would give a pretty good idea if it's SW or HW. Cheers, Carlo