T400 running a dell U2711

Hi All,
I've been using my T400 for some time now with a 24" DELL LCD and have just upgraded it to a new 27" DELL U2711 running Windows 7. Everything is recognised within Windows 7, but the graphics at 2560X1440 are fuzzy and blurry.
I am using a single DVI connection from my advanced mini dock to the U2711.
Any advise would be appreciated...
Thanks!

this resolution would require DVI dual link cable... do you have that?
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

Similar Messages

Resolution issue with macbook pro 13 (late 2013) and dell u2711

I have a Dell U2711 (native resolution 2560x1440) that I use without issue with a macbook pro late 2007 (running 10.10.x), various iMacs and Macbook air 2011 running 10.10. When I say without issue, the display works at its native resolution.
Last week we got a MacBook Pro 13in, late 2013 model.
If I connect this macbook via either thunderbolt connection to the u2711 using either DVI port on the dell, the maximum resolution that I can use is 1920x1080. I am using apple mini displayport to DVI adaptors (I have tried 2 different ones and 2 different DVI cables, with no improvement). Clicking option + scaled in sys prefs does not give the native resolution as an option.
However, I just discovered that if I use a DVI to HDMI adaptor and I connect the macbook to the display I get the full native resolution without issue (2560x1440).
I have zapped the pram, powered down the display etc etc etc and it made no difference.
I would prefer to use the mini DIsplayPort to DVI adaptor rather than HDMI, any suggestions appreciated.
TIA.

Reset PRAM. http://support.apple.com/kb/PH18761
Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
Start up in Safe Mode. http://support.apple.com/en-us/HT1564
Best.

Considering a Dell U2711 for MacMini Server

Hi All,
I am planning to buy a MacMini Server to go with my Dell U2711 Display.
I am a bit confused regarding the means of connecting the Display to MacMini for running at 2560 x 1440 resolution.
Apple tells on MacMini specifications page, that output through HDMI is limited to 1920-by-1200.
That said, I am left with the "Thunderbolt" way to achive the native resolution of 2560 x 1440, right?
So, what cable should I use to connect the display through thunderbolt port?
Some articles suggest using the so called "Mini DisplayPort to Dual Link DVI" Cable to do that, but then isn't is a misleading naming for a thunderbolt cable?
I would expect something like a "Thunderbolt to Dual Link DVI" cable.
Thanks!

Iam buying this model, have tou tried 1080p videos external monitors anf full hd flash videos from vimeo?
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siaco wrote:
Just though I should fill in a bit here, as I have now bought this laptop and running Arch 64bit on it. So if any other users are considering this laptop, here are a few lines about it:
I have it up and running with LUKS disk encryption, everything works fine so far. I'm running XFCE with just a minor problem that the bottom panel is kinda blinking 3 or 4 times right after boot. Havn't tested webcam nor bluetooth, but sound and everything else seems to work fine.
Two of my biggest problems were to get the wifi up and running and to get an acceptable performance when viewing videos in full screen. As for the wifi; just me not understanding that I needed a kernel module AND a firmware.. (If someone wants to fill me in on why we need a firmware AND a kernel module/ driver, I'd be glad.) I installed the iwlwifi-5000-ucode without knowing I also needed the iwlagn module too. After that was fixed, I am now using network manager with no problems.
I have also had some problem with the Radeon 3670. The performance was bad in full screen videos when I used the xf86-video-radeonhd. (I followed arch wiki). It didn't help to use vide-ati neither, and no settings in the xorg.conf did fix my problem. I also noticed that DRI was failing in xorg.log. After alot of trying I decided to try the git-versions which are found in the AUR. I'm happy to say that I can now watch 720 (the only video resolution I have tried yet) with acceptable quality
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Problem with Dell U2711

Hi there
I just took delivery of a new Dell 27" monitor and there's something wrong with the image at 2560x1440
I have it connected to my ATI Radeon HD 3870 Graphics card via a DVI cable
The image is all pixelated
Can anyone help?
Dell support is useless and keep asking me for a number that is not on the monitor
Thanks
Rob

Robert. I am in the process of procuring my first iMac. Stron preference toward the 27" iMac as it has teh dual Thunderboly ports. I already have 2 Dell U2711 monitors which I will connect to my iMac to give me a 3 screen setup, but the show stopper is the resolution being limited on the Dell U2711's. Did you manage to solve the resolution limitation with the screens being limited to 1920x1080 or did you manage to get them to run at 2560x1440?

Can X1900XT power Dell U2711 resolution

I'm thinking of getting the new Dell U2711 LCD monitor. Will my old X1900XT be able to run the 2560x1440 resolution?
Someone says it requires a dual-link DVI-D compatible graphics card here:
http://en.community.dell.com/forums/t/19319486.aspx
I read the X1900XT page it says it has Dual-link DVI, but not Dual-link DVI-D. Does that make a difference?
Here's the Dell U2711 specification page:
http://accessories.us.dell.com/sna/products/Monitors/productdetail.aspx?c=us&l=e n&s=bsd&cs=04&sku=224-8284
Here's the X1900XT specification page:
http://ati.amd.com/products/radeonx1900/radeonx1900xt/specs.html

The ATI 1900 has two dual-link DVI-I ports. These ports have both analog and digital video, so can be used for any display using DVI-A, DVI-D, or DVI-I plugs, single-link or dual-link.

Using Wide Gamut (Dell u2711) With Lightroom

I have just completed an upgrade of my computer system to include 2 Dell U2711 27" monitors. I am using LR 3.5. My system is running with Windows 7 64 bit and a ATI Firepro graphics card running the displays.
Before purchasing these, and listening to the chatter on various forums I was led to belive that I was going to get garish coloration on all applications except Adobe LR and CS5. This does not seem to be the case. LR and CS5 are fine and the other applications IE and Windows Office seem to be OK as well.
These displays are calibrated at the factory.
Does anyone have any experience with these and can share any "gotchas" with me.
Henry

Well I am glad that I am taking my time on this calibration process. I thought I had it understood correctly. I am making my dialog with Dell a part of this message so you can see the exchange I had with their 2nd level of support and I am also a document from Dell engineering. Please take a look at these and I will call Dell again if necessary.
Sorry For The Long Post
Otrman
FROM MY EXCHANGE WITH DELL:
It would be excellent if I could use a calibrated “custom” present on the monitor for LR and CS5 and simply select one of the presets (sRGB or Adobe RGB) when I am not using LR and CS5.   I am not running with any monitor profile and a generic PNP driver now and I am getting much better results than I expected. I would just un-select the profile when I did not want to use the calibrated “custom” preset.
Based on the data engineering provided me in the document I sent that is correct( Yes).
From: Henry Morse [email protected]
Sent: Monday, October 31, 2011 4:30 PM
To: Glickman, David
Subject: RE: PremierColor FAQ_SVC.doc Case 844545167
David, Please just say yes or no to this:
Are you telling me that ONLY the “custom” preset will be altered and that the other presets will remain at the “factory” settings.
Yes or No, believe me it is very important and will increase sales of this monitor if this statement gets passed along as true. Is this worth a conversation between you and engineering to verify? It would be to me and the rest of us photographers. Sorry, but this statement in the documentation is not the way I used to word my writings as an electrical engineer back in the day.
Henry
From: [email protected] [email protected]
Sent: Monday, October 31, 2011 4:47 PM
To: [email protected]
Subject: RE: PremierColor FAQ_SVC.doc Case 844545167
Based on the data engineering provided me in the document I sent that is correct.
David
From: Henry Morse [email protected]
Sent: Monday, October 31, 2011 3:22 PM
To: Glickman, David
Subject: RE: PremierColor FAQ_SVC.doc Case 844545167
Importance: High
David,
I still need clarification here.
“My personal suggestion is that since you are doing custom photo/video work that these LCD are being used for, I would calibrate them for your business purposes and leave as such. With the enhanced video settings normal internet browsing and such will have better clarity.”
Are you telling me that ONLY the “custom” preset will be altered and that the other presets will remain at the “factory” settings. This is an important question for all of us who want to use this monitor for photographic work. If we photographers can have one of the presets, namely, “custom” calibrated, and the others left as shipped then we can choose the customer preset for our work and switch back to sRGB or Adobe RGB for routine office and billing functions.   If this is true, and the photography world learns of this, Dell will sell a lot of U2711s, especially considering that the U2711 is an excellent price performer. an
I have been doing research on this for myself and to share with a number of user forums on photography. I want to get right for my own use and for sharing with the photography community.
Henry
From: [email protected] [email protected]
Sent: Monday, October 31, 2011 8:26 AM
To: [email protected]
Cc: [email protected]
Subject: RE: PremierColor FAQ_SVC.doc Case 844545167
Henry,
Per the documents as with any calibration you must be careful and aware of settings you change. Use the setting CUSTOM COLOR if you want to calibrate using your own equipment as per document.
In regards to your question on your video card as the manufacture /forums recommends you should disable any color managements since you are using your own color/video calibration tools.
My personal suggestion is that since you are doing custom photo/video work that these LCD are being used for, I would calibrate them for your business purposes and leave as such. With the enhanced video settings normal internet browsing and such will have better clarity.
Have a good day.
David
From: Henry Morse [email protected]
Sent: Friday, October 28, 2011 6:08 PM
To: Glickman, David
Cc: [email protected]
Subject: RE: PremierColor FAQ_SVC.doc Case 844545167
Good Evening David,
Thank you for taking the time to discuss color management for my recently acquired U2711 monitors.
According to what we discussed when I use calibration hardware and software you mentioned that I should use only the “custom” setting and that once I calibrated the monitor “all” factory setting would be overwritten and cannot be restored. When I read the word document you sent me I believe I am seeing something that needs clarification:
Question 7 from the word document:
7.         Is it possible to revert to factory pre-tuned settings after I color calibrated my unit with my equipment?
The customer should not re-calibrate and save your result in sRGB and AdobeRGB preset modes. Once overwritten, it is not possible to revert back to factory pre-tuned setting. The customer is advised to use the "Custom Color" preset mode to do their own calibrations.
Does this mean that only the “custom” preset is altered from the factory setting to store the results of my calibration?   Does this mean that if I use the “custom” preset only for calibration that sRGB and AdobeRGP will not be changed from the factory setting? Does this mean that each of the U2711 presets have its own LUT table? Can you please clarify?
If this turns out to be the case I can use the sRGB preset, with no profile as it is now, for routine processing with non-color aware applications, and then select the newly calibrated “custom” preset when doing photo processing. Is this the case? After reading the attachment I believe I have to be very careful not to negatively affect my monitors as they cannot be reverted to factory settings.
I have done some additional research that includes the relationship between monitors and some high end graphics cards such as the ATI Firepro V5800 card I am using. This research indicates that I should disable any efforts by the graphics card to do color management lest I interfere with the efforts to calibrate the monitors.
I am probably being a bit picky but having more than 50 years in the technical end of computers I have been burned more than once having two elements of a computing system fight each other.
Again, thank you for your help on this.
Henry
From: [email protected] [email protected]
Sent: Friday, October 28, 2011 9:20 AM
To: [email protected]
Cc: [email protected]
Subject: PremierColor FAQ_SVC.doc
Good Morning Henry,
Just to follow up on our phone conversation. I have attached a word document regarding some of the question on the U2711 settings and calibration. I also have a couple of hyperlinks one to the Dell support on the monitor. Based on our conversation I believe I have answered your questions regarding the calibration of the LCD. Please let me know later or over the weekend if you still have questions and I will follow up with you on Monday if needed.
Dell manual link:
http://www.support.dell.com/support/edocs/MONITORS/U2711b/en/index.htm
I have included a couple of non-Dell support links for you to do some testing
http://www.gballard.net/psd/go_live_page_profile/embeddedJPEGprofiles.html#
http://www.lagom.nl/lcd-test/
http://yfrog.com/3u100percentrampp
Have a great weekend
David Glickman
Advanced Technical Analyst| Executive Escalations | MCP,MCDST, MCITP,MCSE
Dell | Client Resolution Expert Center, Global Services
phone +1 512 513 6078; 800 289 3355, ext. 5136078
Office hours: 7:00 am - 4:00 pm Central, Monday - Friday
Customer feedback | How am I doing? Please contact my manager, [email protected]
Confidentiality Notice | This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential or proprietary information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, immediately contact the sender by reply e-mail and destroy all copies of the original message.
FROM THE ENGINEERING DOCUMENT: (SEE QUESTION 7)
Service & Support:
1.         Can I request Dell to re-calibrate my monitor during the warranty period?
Calibration is done for only new monitors shipped from factory.
Each unit is factory-calibrated as part of the production process.
Dell will not be able to re-calibrate the monitor during warranty
Period as calibration is done only for new units.
2.         Can I request Dell to provide another Color Calibration Factory Report in the event of the loss of or damage to the report?
Each Color Calibration Factory Report is unique to each Dell monitor and cannot be reprinted.
We would recommend that the customer takes care to retain the Color Calibration Factory Report if required.
3.         Is there a specification for color accuracy? If so, how do I check if my monitor meets the specification?
Dell calibrates the U2410/U2711 according to the DeltaE(1931) standard using equipment that can accurately measure high color gamut panels.
4.         Will Dell guarantee all replacement units are also color calibrated?
The color calibration is only done for new units shipped from factory; thus, replacement units will not be color-calibrated.
5.         In the event of warranty exchange, will the replacement unit come with a similar Color Calibration report?
Dell does not do the color calibration on the replacement units, as such, there will not be a Color Calibration Factory Report or similar attached to replacement units.
In cases where a brand new unit from factory needs to be shipped as a replacement unit, a Color Calibrated Factory Report will be shipped with it.
6.         Why does Dell only provide the Color Calibration Factory Report for new factory units of U2410/U2711?
The color calibration is done at factory to ensure color is accurate for each unit of U2410/U2711 when it reaches the customer.
7.         Is it possible to revert to factory pre-tuned settings after I color calibrated my unit with my equipment?
The customer should not re-calibrate and save your result in sRGB and AdobeRGB preset modes. Once overwritten, it is not possible to revert back to factory pre-tuned setting. The customer is advised to use the "Custom Color" preset mode to do their own calibrations.
8.         How do I use this Color Calibration Factory Report?
The Color Calibration Factory Report is provided for customer’s reference that Dell does color-calibration on the U2410/U2711 to ensure color accuracy and consistency for each unit of U2410/U2711 shipped.
9.         My own measurements of sRGB, gamma or AdobeRGB are not meeting the values stated in the report. Why is this so and can I get an exchange?
One of the reasons could be the different type of color calibration equipment used. There are many types of color calibration equipment in the market.
Dell ensures Color Accuracy based on the Dell approved Color-Calibration equipment at Dell’s factory.

MSI Lighning 7970 card 2560x1440 problem (with DELL U2711)

Hello. I have trouble with my display and 2xMSI 7970 Lighning graphic cards. Could someone help me?
Configuration:
Core i7 2600K running on gigabyte P8Z68-V motherboard with J.3603 BIOS
2 MSI Lighning 7970 cards without crossfire connector inserted (I don’t need crossfire for gaming – just multimonitor configuration for graphics).
The BIOSes of the cads are the same-from-the-box and was identified like MSI.HD7970.3072.120411.rom in the GPU-Z database.
The numbers in the GPU-Z’s “BIOS Version” is 015.013.000.010.000000 (113-AD40900-X01)
The BIOS numbers in the MSI Live Update is TV278MS.102
And the serial numbers from the stickers of the card’s boxes are:
602-V278-02SB1204058976 and 602-V278-02SB1205129844
All stuff running on Win8.1x64 system.
I have 3 displays: 2 of them are Samsung 245T running 1920x1200 and the last one (the new one) is DELL U2711 (witch is capable for running 2560x1440 resolution).
Now, THE PROBLEM.
When I running 2-displays configuration (2xSamsung 245T connected via DVI) there are no any problems at all: all works fine. The problem with the 3d display and it’s 2560x1440 resolution. I tried different cables and both cards, but display couldn’t run correctly.
1) It is running fine but ONLY 1920x1080 resolution when connected via DVI. There is no 2560x1440 settings at all in windows system then. I tried both cards and both DVI-ports, also I tried different DVI cables. No matter. It’s only 1920x1080. The drivers for the display panel was installed from the dell’s official site and the’re latest (as I could see..)
2) When I tried to connect the display via DisplayPort cable to my cards (no matter which of them or which of 4 display port’s connector on each card) it COULD RUN AT ALL. Usually the display showing up correctly with the right resolution (2560) but the screen is blank (black). After some time monitor goes to the suspend mode.
From time to time display could shows some desktop with terrible quality (I get the photos of it) for 2-3 second and then it’s blank again.
Also when connected I get the error “DisplayPort Lower setting applied” from time to time.
3) I have tried some DVI-Displayport adapters (witch was in the box with the MSI cards) and the result is the same as in 1) - only 1920x1080 resolution...
The display is fine and it works perfectly on another system (without MSI cards). What’s the problem? Should I upgrade BIOS or something to work in 2560x1440? Thank you.

the poor quality of the screen (when it shows up for 1-3 seconds with DisplayPort connection)

Lenovo ThinkPad X1 and Dell U2711 / HDMI?

Hello,
I plan to purchase the Dell U2711 monitor, it has a resolution of 2560 x 1440.
Will my Lenovo ThinkPad X1 handle this over the HDMI port?
Thanks in advance,
Simon

Not thru HDMI, but it will thru the mini-display port. You simply need a mini-display port to full size display port cable, something like this.
http://estore.circuitassembly.com/products/Mini-Displayport-to-Displayport-Adapter-Cable.html
| X220 i7-2620M | 12.5" IPS | Intel 520 Series 180GB Main SSD | Mushkin 120GB mSATA SSD | 8GB RAM | Intel 6205 WiFi | BT | Win7 Pro 64 SP1 |

Dell U2711 black screen when connected to Mac via DisplayPort

I currently have a Dell U2711 27" monitor connected to my Mac Mini through DVI (it uses a DVI to mini-DVI adapter at the PC end). However, I cannot get the full resolution of the monitor 1920 x 1080 maximum is offered were the monitors maximum resolution is 2560 x 1440.
I did some Googling and seemed it required DisplayPort connection to achieve this. No dramas. I ordered a Mini-DisplayPort to DisplayPort cable.
I plugged this in and all I get on the Dell is a black screen. The monitor doesn't go into power save mode or anything like that, just displays nothing - an illuminated black screen.
I pulled out my MacBook and connected the cable to that, same deal. The Mac recognises that the cable has been connected (as the laptops LCD goes blue for a second or two while it detects the new monitor).
Any ideas?
I also had a DisplayPort to DisplayPort cable here which was included with the monitor from Dell, which I will test aswell when my miniDisplayPort to DisplayPort adapter arrived.

Yes, that is one means, but...
However, HDMI 1.3 can also carry resolutions higher than 1920 x 1080 - check out http://en.wikipedia.org/wiki/HDMI - not really an option on the Dell monitor though, as it only supports up to 1080p on the HDMI connection. However, there is a thread elsewhere on the internet of a user who forced his Windows laptop to use 2560 x 1440 resolution via the HDMI output and the Dell monitor accepted it!
In addition, so can DisplayPort - as per my original post.
The Apple Dual-Link DVI adapter is plagued with issues and has a lot of faults, so I'd rather avoid it. It is also significantly higher priced than the above option of DP.

External Monitor (Dell u2711) problems

Hi all,
I'm an editor and just bought a Dell u2711 to hook up to my MacBook Pro (2.53 GHz, 4GB Ram, NVIDIA GeForce 9400M). The DVI would only support up to 1920x1280 so I bought a mini DisplayPort to DisplayPort adapter and that got me up to my full resolution for the monitor.
HOWEVER... my computer seems to be too slow or the graphics card isn't good enough to support such a monitor. Is this true? When I use the external monitor as extra desk space and put all my FCP windows in it I get this banding on my subjects when they move. It just looks like very slight glitches and the movement isn't displayed so smoothly. I'm working with 1080p ProRes 422.
When I try and use the Dell u2711 as an external video monitor (display all frames) it lags pretty bad and the motion is stuttery and not showing in smooth motion.
Please help. Would I have been better off with the 27" Cinema display? I thought they were pretty similar monitors. Is my laptop or graphics card not up to the task? Just last Nov. or so I got this laptop with what I thought was the best available graphics card Apple had at the time for this laptop.

Go to your Audio / Video Settings >> A/V Devices tab and turn of "Mirror on desktop" for Playback ... this will reduce the load on your system as it will not be trying to decode the video for two separate (and different) playback streams simultaneously ie when using Digital Cinema Desktop Preview to display All Frames then you will not see playback in the Canvas window as well, just on the external preview monitor.
And/Or you could also try setting FCP's System Preferences >> Playback Control >> Gamma Correction to "Approximate" ... according to the manual this can offer a little performance boost (but to be honest I haven't ever tested this).
Choosing Real-Time Playback Gamma Correction Options
Whenever you watch your video on a computer display (such as video displayed in the Canvas, the Viewer, or via Digital Cinema Desktop Preview), Final Cut Pro applies gamma correction to the video to more closely approximate the way it would appear on a video monitor.
Note: Gamma correction is not applied to external video outputs such as DV or third-party interfaces because this correction is inherently applied by external video monitors.
If your computer’s graphics card supports gamma correction, Final Cut Pro automatically uses the card for accurate gamma correction. If your computer has an older graphics card that does not support gamma correction, you have two gamma correction options in the Playback Control tab of the System Settings window.
Accurate: High-quality gamma correction. This option is the most accurate but also requires the most processing power.
Approximate: Lower-quality gamma correction. This option leaves more processing power available for real-time effects but results in less accurate color and brightness rendition.
Tip: If your real-time performance is limited, try changing the gamma correction setting to Approximate (if available).
Hope it helps
Andy

WIll my MP drive a dell U2711

I ordered a Dell U2711 as I'm tired of waiting for Apple's new monitor offerings and I never checked if my MP will drive it ok. It has the ATI 4890 HD and the Dell the following inputs : VGA, DVI, Composite, Component, HDMI, DisplayPort.
I believe the Apple card has a mini display port and dvi out but whcih input to the Dell is used ? Will the DVI work or must I get a mini displayport to displayport cable ?
Anyone provide comments on this monitor..anyone here using it ?
Thanks

Another option is to get a mini display port to display port adapter from monoprice.com for about $10 and you can use the mini display port to drive the monitor if you need the DVI for something else on the card.

How to Dual Display with Dell U2711

Hi,
I am looking to connect my iMac (late 2013) to a Dell U2711 in a dual display configuration. I'd like to be able to use all 2560x1440 pixels of the Dell.
the Dell has DVI-D (dual channel), Displayport (not mini displayport), HDMI and VGA.
which port will give me the cleanest picture and best performance and what cable do I need to buy ? (obviously thunderbolt to something...)
thanks !

stqn wrote:
Expi1 wrote:Thanks, I'm mostly struggling with how to partition for Arch and then how to do the bootloader. I'm using Win8 64-bit and from what I understand a Legacy BIOS bootloader. I'm not entirely sure what I should be partitioning the C: into, I've done partitions before, just not for Arch and then I'm not sure whether to use GRUB or syslinux, or if I even need those. Or if I need to use GPT or MBR?
Your disk is already partitionned so you don’t have to choose between GPT or MBR, the choice is already made.
You don’t partition “C:”, that is the name of a Windows partition. You partition a drive.
Grub or syslinux, use whatever the beginners guide tells you to. Personally I think syslinux is simpler which is why I’m using it (but I’m not dual-booting, if that matters).
You’re not saying what your problem is with partitionning, so it’s hard to help.
Thanks for getting back to me, I'm not sure if I just create one large partition for Archlinux or if I have to create multiple? Where I'm also confused is with the Creating Filesystems part of the guide. I don't understand how I'd do this in Windows, or what /dev/sda1 is referring to.
As for the bootloader part, the Beginner's Guide gives you a choice between syslinux and grub, what I'm not sure about is which to use considering I'm dualbooting. How it will affect my windows bootloader, do I disregard that and use GRUB now? I'm unclear on how that works.
I'm also aware I need to disable Secure Boot, I just searched my BIOS options and couldn't find anything remotely relating to that, so I'm assuming it's not an issue since this computer was originally on Windows 7 anyway?
Thanks again, Expi.
Last edited by Expi1 (2014-03-06 19:54:30)

Mac Mini from 2010 with Dell U2711 resolution question

I just hooked up a Dell U2711 monitor with the DVI cable. I should be able to get a resolution of 2560x1440 with that, but the highest res I have in my System Prefs is 1920x1080. Does anyone know what I need to do to get the max resolution?

*This model simultaneously supports 1920x1200 on a DVI or VGA display using the Mini-DVI port and 2560x1600 on a dual-link DVI display using the Mini DisplayPort (with an optional Mini DisplayPort to Dual-Link DVI adapter).
above from:
http://www.everymac.com/systems/apple/mac_mini/specs/mac-mini-core-2-duo-2.26-la te-2009-specs.html
Thus you need the dual link adopter.

Mac Mini on Dell U2711

Hi, I try to connect my new Mac Mini 2014 to a Dell U2711. It is working fine via HDMI but how can I connect the mini to get a 2560x1600 resolution? Thanks in advance, Mike

I have a similar monitor and use one of these: http://www.amazon.com/StarTech-6-Feet-DisplayPort-Adapter-Cable/dp/B002XVYZ82/
It's a minidisplayport to displayport wire. Full resolution looks good on these monitors.

Don't have 2560x1440 resolution on Dell U2711

Hi,
I've recived the mac today and I have a monitor DELL U2711. The monitor is connected with an HDMI cable.
This is what I can set now.
Someone know what I can do to get 2560x1440 resolution?
Thanks
Ivan

you could try to option+click on "scale" to find out more options.
but i fear that won't solve the problem, at least this is my experience as I am in the same situation
It seems to be a problem of Mavericks. (Lion worked perfectly with the maximum resolution
Both my MBP and MacMini can't get 2560x1440 on the U2711. And yes @turbostar - with mini DP to DP.
All those work-arounds (reset PRAM, overwrite the overrides ...) don't help. So very, very VERY frustrating.
So if any ouf you finds the solution. please post here.
regards, david

T400 running a dell U2711

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