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2560x1440 on External Display via Macbook

M

Miltz

macrumors 6502a
Original poster
Sep 6, 2013
887
506
Has anyone been able to use the Apple USB-C HDMI adapter to connect to a external monitor with a resolution higher than 1920x1080. I have a 27" 2560x1440 monitor and I want to make sure the adapter will support that via HDMI cable on the 2015 Macbook. PLEASE DO NOT just tell me what apple's or intel's site says. I want to hear from people who ACTUALLY have tried it. Thank you. ;)
 
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good to the point question, I am also interested in the answer.


Miltz said:
Has anyone been able to use the Apple USB-C HDMI adapter to connect to a external monitor with a resolution higher than 1920x1080. I have a 27" 2560x1440 monitor and I want to make sure the adapter will support that via HDMI cable on the 2015 Macbook. PLEASE DO NOT just tell me what apple's or intel's site says. I want to hear from people who ACTUALLY have tried it. Thank you. ;)
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There is a recent thread where someone hooked it to a display that was greater than 1080p. They had pics. Check the last few pages.

The main thing is the display also has to support greater than 1080P via HDMI.
 
mattopotamus said:
There is a recent thread where someone hooked it to a display that was greater than 1080p. They had pics. Check the last few pages.

The main thing is the display also has to support greater than 1080P via HDMI.
Click to expand...

Yes, but would be good for someone to actually confirm they are able to drive 1440p display via HDMI.

Surely someone must have tried that?
 
ctyrider said:
Yes, but would be good for someone to actually confirm they are able to drive 1440p display via HDMI.

Surely someone must have tried that?
Click to expand...

it is a little ridiculous they are having such supply issues with the accessories. It is not like they didn't know they were going to need them.
 
mattopotamus said:
it is a little ridiculous they are having such supply issues with the accessories. It is not like they didn't know they were going to need them.
Click to expand...

I just received the AV Multiport Adapter in 4 business days by store pickup. I was quoted 5-7 weeks when I ordered last week. It seems they are being ultra conservative with the back order times.
 
2560x1600 Dell U3014 via HDMI works

I have a Dell U3014 30" monitor and I'm running at full resolution via the Apple adapter - so I can confirm that 2560x1600 is working. Given that, I assume that 2560x1440 would work as well.

I've noticed some issues with the display not coming back after waking the computer from sleep. I've had to manually toggle the inputs on the monitor to get it to "wake up". Doesn't happen all the time, but it's annoying the times it the screen doesn't "wake up" immediately.
 
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macinla said:
I have a Dell U3014 30" monitor and I'm running at full resolution via the Apple adapter - so I can confirm that 2560x1600 is working. Given that, I assume that 2560x1440 would work as well.

I've noticed some issues with the display not coming back after waking the computer from sleep. I've had to manually toggle the inputs on the monitor to get it to "wake up". Doesn't happen all the time, but it's annoying the times it the screen doesn't "wake up" immediately.
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That's great news. Wake issues aside - how's the performance? I assume you're running external display alongside with internal retina display?
 
macinla said:
I have a Dell U3014 30" monitor and I'm running at full resolution via the Apple adapter - so I can confirm that 2560x1600 is working. Given that, I assume that 2560x1440 would work as well.

I've noticed some issues with the display not coming back after waking the computer from sleep. I've had to manually toggle the inputs on the monitor to get it to "wake up". Doesn't happen all the time, but it's annoying the times it the screen doesn't "wake up" immediately.
Click to expand...

Thanks for that. I'll be trying to run my 3008 monitor through it, have never used HDMI on that (always used TB->DP cable). Might be worth buying the adaptor in that case...
 
ctyrider said:
That's great news. Wake issues aside - how's the performance? I assume you're running external display alongside with internal retina display?
Click to expand...

Performance is better than I expected. Moving around windows quickly on the external display is no "better or worse" than moving around windows on the internal rMB display. I don't do any heavy stuff though. Office, PHP development, browsers etc.

And yes, running both external and internal at the same time. Internal at 1440x900, external at 2560x1600. rMB is 1.2GHz model.

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tillsbury said:
Thanks for that. I'll be trying to run my 3008 monitor through it, have never used HDMI on that (always used TB->DP cable). Might be worth buying the adaptor in that case...
Click to expand...

I think as long as your monitor supports your intended resolution via HDMI, you should be good. Some (older) monitors only go to 1080p over HDMI (from some research I made before I got my rMB). I was skeptic if 2560x1600 would work on mine, but it does indeed.
 
mikeray said:
How are you connecting to it? Are you using a simple hdmi cable ?
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Yes, regular HDMI cable. I don't know what it's "rating" or spec is though. Thinking of ordering a newer cable supporting HDMI 2.0 or whatever the latest is to see if that fixes some of the wake-up issues.
 
Golfer00ksu said:
I just received the AV Multiport Adapter in 4 business days by store pickup. I was quoted 5-7 weeks when I ordered last week. It seems they are being ultra conservative with the back order times.
Click to expand...

Thanks for this advice. I actually ordered a second one for in store pick up yesterday. i just got charged, and it is preparing to ship. I canceled my home delivery.
 
macinla said:
Yes, regular HDMI cable. I don't know what it's "rating" or spec is though. Thinking of ordering a newer cable supporting HDMI 2.0 or whatever the latest is to see if that fixes some of the wake-up issues.
Click to expand...

Thanks for the report, was it 30Hz or 60Hz by the way? :eek:
 
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