Hmm...So you're not getting the black screen/cut out for a second or two now? I've changed from 60Hz to 50Hz but still experiencing the same problem. Baffled that other users haven't experienced this.
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Finally 3440*1440(60Hz) external display is perfect working on my rMB through HDMI
- Thread starter neutron1988
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That's a relief. Would you be able to share your display settings at all if you don't mind? I'll try and mirror them on the Dell and see if I can get similar results.
I'm running at 2650x1080 @ 60 Hz.
The panel's native resolution is 3440x1440. The best I can get is 50 Hz at that resolution.
The panel's native resolution is 3440x1440. The best I can get is 50 Hz at that resolution.
It appears we have the same setup. Did you experience issues with your external display screen going black for a second or two and then coming back on? I got the Dell U3415W on Thursday and connected it to my 2015 rMB via the Apple USB-C to HDMI adapter and have experienced this issues lots of times. Very disappointed but if you have any suggestions for how I could resolve this, I'd greatly appreciate it
My setup works perfectly fine at 60Hz on the native resolution of 3440*1440. With no cutting in and out.
But I found that if the power supply is not enough, there will be some problem with the screen. For example if I cut the AC power, the 3415w will go down at the same time.
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I've got the 2016 15" MacBook Pro with the Dell U3415w monitor, using the Apple multiport adapter and the monitor's hdmi cable.
I'm also getting the monitor cutting out for a few seconds on the 60hz. I think using 50hz fixes it, but its too early to tell right now.
Is there a fix for the 60hz?