2560x1600 via HDMI? Dell U3011 monitor.

Connected my new Macbook 12 Retina to my Dell U3011 (30" 2560x1600 native) via the Apple USB-C Digital AV adapter and HDMI. The max resolution I can set is 1920x1200. On the display settings page on my Macbook, it's set to 60hz and there's no option to lower it to 30hz. Any ideas?

Bravo! It never occurred to me to try HDMI to DVI. It works! I got 2560x1600 at 60Hz via HDMI to DVI (single-link).
So, in summary...
via HDMI - max 1920x1200 60hz
via HDMI to DP - does not work
via HDMI to DVI - max 2560x1600 60hz

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Hello. I can confirm that CrypticGuru is correct. I bought this cable which fixed the problem (same cable he lists, straight from the source):
http://www.monoprice.com/products/product.asp?c_id=102&cp_id=10246&cs_id=1024606 &p_id=6007&seq=1&format=2
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https://discussions.apple.com/thread/4221033?start=0&tstart=0
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This post helped me: http://ireckon.net/2013/03/force-rgb-mode-in-mac-os-x-to-fix-the-picture-quality -of-an-external-monitor
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Hello LittleFeatFan
It sounds like to me that your MAC Book Pro is cycling through trying to find a compatible video mode with the monitor. Please be advised that HP monitors are not designed with MAC computers in mind they are designed for computers running Microsoft Windows operating systems. The newer MAC computers run in what is called 'VESA' modes and will work on most HP Monitors. Try the following steps
1. Turn off the MAC Book Pro.
2. Connect the HP Monitor while the MAC Boot Pro is off.
3. Turn on the MAC Book Pro.
4. Set the monitor to run at 60 Hz.
I am also including a link to the driver page for your HP Monitor below. You will note there are no MAC O/S drivers available for this device.
http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?cc=us&lc=en&dlc=en&product=3551927
If you have any further questions or concerns please re-post.
Footnote: http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=bph02073
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
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Find out a bit more about me by checking out my profile!
"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

Sale on Dell UltraSharp U2711 and U3011 Monitors

I noticed while over at the Tom's Hardware site a decent sale on two of the top-of-the-line Dell monitors. I know this looks like spam but I'm not affiliated with Tom's hardware in any way; I'm just passing on what looks like a decent price, for any of you who might be ready to buy a monitor...
U2711 - $807
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Both are with free shipping.
http://www.tomshardware.com/news/deals-ultrasharp-lcd-monitor-sale,16180.html
The U3011 is the one I'd get if I had a spare $1196 handy right at this moment. Maybe I can find a way to scrape enough together in the next day or so... 2560 x 1600 could replace my current dual monitor 3200 x 1200 desktop nicely I think. If only there was something actually wrong with these old Dell U2001FPs... Where's my coffee cup...
Here are some pretty good in-depth reviews on these monitors:
http://www.tftcentral.co.uk/reviews/dell_u2711.htm
http://www.tftcentral.co.uk/reviews/dell_u3011.htm
-Noel

It's just 100 ppi on the 30 incher, Trevor. That's the beauty of it being so big. As it turns out the dual 20 inchers I'm running now are 100ppi, and I find it to be a very sweet resolution (not that I wouldn't like 200 ppi).
I suppose that's a possible downside to getting one of these monitors now... It could end up that right around the corner are super high resolution monitors that would make one regret purchasing "old tech".
I got to thinking about video cards yesterday evening, and I almost worked myself up to pulling the trigger on the U3011 plus a new VisionTek ATI Radeon 7850 (2 GB) with 3x the performance of my current video card.
I'm quite used to my 3200 x 1200 desktop, so changing to a 2560 x 1600 desktop might be just a bit of a challenge... When not doing Photoshop I often tend to put reference materials on one monitor while actively working on the other. Of course, I could retain one or both of these perfectly functional 20" monitors turned up sideways as "ears" on both sides and just add the 30" unit in the center... THAT would be an amazing desktop!
Lundberg, I appreciate your skepticism, but the Dell U3011 to me right now represents the most attractive offering out there.
-Noel

2560x1600 via HDMI? Dell U3011 monitor.

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