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I have a late-2013 15" retina MacBook Pro with an i7-4750HQ CPU and onboard Iris Pro 5200 graphics. And in case it makes any difference, I'm running Win8.1 on it.
When I connect this MBP to an external 2560 x 1440 monitor via HDMI, I'm puzzled to find that the displayed resolution on said external screen is only HD. (Actually, I think it was 1920 x 1200.)
Can anyone explain why the HDMI connection is not making use of the full capabilities of both the monitor and the Iris Pro graphics? Particularly when Intel seem to state that it should be capable of higher resolution.
Does it have anything to with the display running at 60Hz? (The above Intel link only offers a figure for HDMI running at 24Hz.)
awj
Posted 2014-08-22T10:49:25.787
Reputation: 103
Thanks @Tetsujin, but if I use Thunderbolt then there's a problem with Bootcamp not picking up the device unless it's present at boot-up - nor can you sleep or hibernate a Thunderbolt-connected computer: http://www.macwindows.com/Thunderbolt-Limitations-of-Mac-running-Windows-and-getting-around-them.html This means that it would be impractical to use Thunderbolt - and presumably DisplayPort as well.
– awj – 2014-08-22T11:20:53.297I've only ever used it on a desktop that never sleeps, so I'm beyond my experience on the MBP, sorry - but it works booted into both Mavericks & Win 7 on Bootcamp; though it is always plugged in. – Tetsujin – 2014-08-22T11:24:39.947
Late-2013 MBPs do have HDMI 1.4, right? Or is their implementation to support 4k via HDMI some proprietary solution? – awj – 2014-08-22T11:37:13.230
yes, afaik it's full 1.4 spec - but does the cable & monitor also support it? – Tetsujin – 2014-08-22T11:49:16.260
The monitor I was trying doesn't support HDMI 1.4. I was only asking so that I know one end of the cable would support it - no point getting a latest-spec monitor only to find that the MBP doesn't offer what I need. Thanks again, Tetsujin. – awj – 2014-08-22T12:10:41.503
Welcome. Wish you luck. – Tetsujin – 2014-08-22T12:18:55.447