

If they do seem well secured, unplug and plug them in again just to be sure. That may be all it needs to recognize the video feed and start displaying it correctly. In the following window, click the Detect button located under the display diagram. To force it to check again, right-click the desktop and select Display Settings from the resulting pop-up menu. There are a number of reasons why this happens and plenty of fixes you can try to sort it out. It is very annoying.Multiple monitors have all sorts of advantages - even over single, enormous ultrawides - from improving productivity to providing versatility in their placement on your desk. Now I restart my laptop every day few times. I should go into sleep mode few times a day.īefore Yosemite update I did not remember I even restarted my laptop in months only when some upgrades required. But I found out from some blog I go to sleep mode, wait for a second and wake it up. One more issue, I have my mac lagging after while. So my conclusion it is problem with both cables at the same time or mac.

Apple TV with the same monitor works just fine without any problems. But applications are not rearranging to laptop, so it seems connected, but not showing.ģ.

Thunderbolt to HDMI - it works normally, but in about every 2 minutes for few seconds image is gone and monitor is black. Monitor goes to sleep mode.īut I found out very interesting thing - even if I do not take monitor and just restart mac occasionally monitor goes to sleep mode and only reconnecting cable helps on second, third try.Ģ. It seems like connection somewhere in cable is bad, because sometimes when I turn monitor it disappear and all applications rearrange to laptop, so connection between monitor and laptop has lost. I'm about to become an alcoholic over this. Was really hoping it was something super simple. But I can't believe a new monitor and new computer can't seem to connect right. When I get home later Apple is supposed to call me to try to help me some more. Which I did and it didnt make a difference. I did and they had me switch the cables, run a 5 step thing to reset something. I called Dell and their support told me they are not trained on Apple computers and couldn't help me. I have the Apple set so that it doesn't ever go to sleep thinking that might fix it. Tried a whole new HDMI cable to see if I had a bad cable and it did the same thing. I just tried switching the HDMI ends and that didn't make a difference. Then the white light on the monitor flashes on and off slowly. But it just was a second ago because I was working on the computer. Then come up and say it's not getting a signal from the computer.

When I'm actively on the computer doing something, sometimes it just goes to a black screen and when i touch the monitor buttons on the front of the monitor or move my mouse it will come up and say going into power save mode with a little picture of an HDMI port with it.
