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chfilm

macrumors 68040
Original poster
Nov 15, 2012
3,308
1,988
Berlin
Hey,

I've got a nMP and 2x Dell UP2715K 5k Displays that are connected through a dual thunderbolt cable each.
So far I had zero problems with them, but since I updated last night, two weird issues have appeared: First, Multiple times after rebooting, one of the displays has only been run on one of the thunderbolt cables, resulting in a weird stretched image. Only solution was to power down, unplug, replug, power on - problem solved. It happened twice now.

The other issue: After the displays went into power saving mode, a few minutes after the screensaver kicked in, they just wouldnt come back up anymore.
The just stayed dark grey. As if OSX was displaying a fullscreen app on a third monitor or something. Super strange and extremely annoying! Never change a running system...
 
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