Currently Being ModeratedMar 18, 2011 6:45 PM (in response to BrianGupton)When you open System Preferences/Displays is it showing both an LCD panel and one for the Dell ?
Are you using Mirroring or Extended Desktop ?
If you have an external keyboard and mouse you might try forcing it into Clamshell Mode (connect the keyboard and mouse then close the MBP lid to out it to sleep then touch a key on the keyboard to wake it up) and then open the preference panel from the Dell screen and see if better resolutions are available ?2.4 Ghz 15" 4GB RAM 500GB/7200 Unibody MBP; + Macs, PCs, iPods, iPhones, AppleTV, Mac OS X (10.6.6)
Currently Being ModeratedMar 18, 2011 7:09 PM (in response to iVmichael)Michael - It is showing both LCD panel and one for the Dell. The Dell display is showing a max resolution of 1600 x 1200, while the LCD is 1680 x 1050.
I don't have a keyboard or mouse at home to try it in Clamshell Mode. Any other suggestions?MacBook Pro 2/66 GHz Intel Core i7, Mac OS X (10.6.6), 8 GB 1067 MHz DDR3
Currently Being ModeratedMar 18, 2011 7:42 PM (in response to iVmichael)I found this that says: "When you connect an Apple Cinema Display (30-inch DVI) to one of the products noted below, you may find that the highest available resolution is 1280 x 800, even though the optimum resolution for the display is 2560 x 1600. The maximum resolution available when this display is connected to a single-link DVI port is 1280 x 800; you must connect the display to a dual-link DVI port to access the higher resolutions available to the display."
I guess that means that I need this dual-link DVI port. It seems odd that I would need a special cable just to hook this up.
http://support.apple.com/kb/HT3571?viewlocale=en_USMacBook Pro 2/66 GHz Intel Core i7, Mac OS X (10.6.6), 8 GB 1067 MHz DDR3
Currently Being ModeratedMar 18, 2011 8:12 PM (in response to BrianGupton)You do need the mini-Displayport-to-Dual-link DVI adapter:
Once you get that, you'll be fine. Perhaps you can return the single-link DVI adapter you bought first.15" '08 UMBP 2.4GHz/4G/500G XT; TiBook 1GHz/1G/120G; iPhone 3G, iTouch 32G, Mac OS X (10.6.6), scanners, projector, tablet, laser and photo printers, Pentax K-7, Olympus E-10
Currently Being ModeratedMar 18, 2011 9:27 PM (in response to BrianGupton)2.4 Ghz 15" 4GB RAM 500GB/7200 Unibody MBP; + Macs, PCs, iPods, iPhones, AppleTV, Mac OS X (10.6.6)
Currently Being ModeratedMar 20, 2011 12:50 PM (in response to BrianGupton)The dual adapter fixed the issue.
Currently Being ModeratedMar 20, 2011 12:52 PM (in response to BrianGupton)Good. Thanks for posting back to confirm.15" '08 UMBP 2.4GHz/4G/500G XT; TiBook 1GHz/1G/120G; iPhone 3G, iTouch 32G, Mac OS X (10.6.6), scanners, projector, tablet, laser and photo printers, Pentax K-7, Olympus E-10
Currently Being ModeratedApr 9, 2011 12:04 PM (in response to BrianGupton)Instead of the $100 for it from Apple, following works too for $16.
Also, won't a simple mini-display port to normal display port cable work too, as u3011 has a display port.mac, iPhone OS 3.0
Currently Being ModeratedApr 9, 2011 12:12 PM (in response to gammapoint)Or you could use following adapter min-display port male to display port female for $10 and use the supplied display port cable from dell
http://www.pchcables.com/midimatodife.htmlmac, iPhone OS 3.0
Currently Being ModeratedAug 3, 2011 9:06 AM (in response to BrianGupton)
Currently Being ModeratedNov 20, 2011 7:00 PM (in response to BrianGupton)
Have you solve the problem yet?
you need to relocate the menu bar to the desired monitor.
Currently Being ModeratedDec 29, 2011 11:21 AM (in response to BrianGupton)
I had the same problem. I bought a new dell u3011 monitor, connected the dvi cable to my dvi-to-mini display adapter, plugged it into my macbook pro, and only got 1600 x 1000 (where the max I expexted was 2560 x 1600).
I then tried hdmi through the mini display port and upped the resolution to 1920 x 1200. Close but no cigar.
I ended up having to purchase an adapter to use the display port. This is what I bought:
Now I get my 2560 x 1600 resolution! Note: I did not need any drivers to make this work.
Currently Being ModeratedNov 28, 2012 12:28 AM (in response to BrianGupton)
thunderbolt in MBPs do not seem to behave well with Dell ultrasharp series. http://en.community.dell.com/support-forums/peripherals/f/3529/p/19458525/201488 89.aspx
I have a U3011, and my MBP retina 15inch
(10.8.2) only sends YPbPr space to the display via miniDP to DP cable instead of RGB. If I change the settings to RGB, the color is all funny looking. For all professional purposes this is useless. Nobody from Apple or Dell is willing fix this.
U3011 only uses HDMI 1.3, so you won't get the full resolution. I also have used a mini-DP to dual-DVI adaptor. It gets RGB from MBP, the text is all garbled for anything above 1600x1000 .
I am at my wits end.
Currently Being ModeratedJan 29, 2013 1:39 PM (in response to aramjam)
Hello. I can confirm that CrypticGuru is correct. I bought this cable which fixed the problem (same cable he lists, straight from the source):
With this I now get beautiful 2560x1600 resolution on the u3011 and without the annoying audio error message from this other forum, where I cross-posted my experience:
I am not an image/video guy so I can't comment on color calibration, but it looks right to my eyes.