Thunderbolt Display blanking for a second
I have a Thunderbolt Display connected to The latest Mac Pro with D700 video cards. Since upgrading to Yosemite I've noticed two problems with the display. First, about every ten minutes or so, my screen will go completely black for about one second, then turn back on. The second problem is that sometimes that after putting the machine to sleep, or using a key combo to turn off the display, it will just turn right back on after a few minutes. Sometimes I come back to my machine hours later and the login screen is showing. I have the screen saver set, and the energy save settings set to turn these things off, but the screen turns on and stays like that. I've resorted to just turning the machine completely off, so I don't needlessly waste money. Anybody else seeing this kind of problem?
Mac Pro, OS X Yosemite (10.10)