DELL 2007WFP as External display

For some reason - and I've called both Apple and Dell about this to no avail - I can not use a DELL 2007WFP on my Macbook. The lights on the DELL simply go amber.
If anyone has anything that might help me, please please let me know - since both of these products are brand new and I would really love to get them working.

I don't have a MacBook yet but I found this info in the online manual:
To connect an external display or projector with a DVI or VGA connector to your computer:
1 Turn on the external display
2 Make sure the display cable is connected to the external display
3 Connect the display cable to your MacBook using the appropriate adapter (the Apple Mini-DVI to DVI Adapter or the Apple Mini-DVI to VGA Adapter).
Your MacBook automatically detects the external display.
4 Adjust the resolution on an external display by using the Displays pane of System Preferences or by using the Displays icon in the menu bar.
Note: Your MacBook supports external display resolutions up to 1920 x 1200 on Apple DVI displays and up to 1600 x 1200 on VGA displays.
I'D SAY STEP #4 IS THE IMPORTANT ONE HERE!
I use 2 displays on my iMac and I have to use "DISPLAY PREFERENCES" whenever I switch between an extended desktop or desktop mirroring.
HOPE THIS HELPS!
Northoak

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IMac Retina 5K (2015) with 1xTDM iMac (2011) and 1x Dell External Display possible?

I have 1 x 27" iMac Retina 5K (2015), 1 x 27 " iMac (mid 2011) and a Dell P2715Q. I'd like to know if it's possible to run the 2011 iMac in Target Display Mode and my Dell as a secondary display from my 2015 iMac? My desired configuration is the 2015 iMac running two external displays. The 2015 iMac has an AMD Radeon R9 M295X 4GB Gfx card and both iMacs are running Yosemite 10.10.1
I have verified that running the 2011 iMac only via TDM works. Also running the Dell as an external Display only works (either at 4K resolution or the same resolution as the external iMac (2560x1440) via SwitchResX). With the Dell running @ 2560x1440, trying to put the 2011 iMac into TDM, causes a slow grey screen, then some display artefacts when coming out of TDM. Going in and out again appears to refresh the screen. But it doesn't seem to work.
I was wondering if anyone else has a similar configuration working and if so what settings or configuration changes to make?
Thanks!

I stopped by the Apple Store yesterday, and they were nice enough to try the Screen Sharing solution with me.
Indeed, we were able to share the screen of a MacBook Pro and display it on the iMac Retina 5K over a Thunderbolt Bridge network. (should also work over WiFi)
As I expected, (based on the native resolutions) the MBP window maxed out at about 55-60% of the height and width of the 5K display.
I didn't try experimenting with lower resolutions on the 5K.
I'd actually be OK with that solution except as we increased the font sizes, (e.g. 48 pt) we noticed a *lot* of ghosting around the characters.
I will have to try it again at normal font sizes and decide if that is something I can work with all day long.
Otherwise, I am leaning towards buying last year's iMac, which kinda' grates me the wrong way.
Thanks,
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Disconnect+reconnect external display = washed out image

hi guys
I need some expert help on this. Using a Dell E178 WFP external display on my 2010 Macbook Pro via mini-DVI-to-VGA adapter. This display has no EDID it seems so I use SwitchResX to create the necessary resolution override (1440x900). SwitchResX has nothing such as daemons or helpers installed on top, so this boils down to graphics drivers.
My problem: When I reboot the machine, the display has the necessary brightness, contrast, and colour balance. If I unplug the display, wait a sec, then plug it back in, the image comes up very bright and washed out, and I can't get a "true" black out of the display.
What this isn't: I have a ColorSync profile, and make sure it is successfullly loaded, i.e. I go through the trouble of opening up system preferences>displays>color to make sure it reloads. This is not a ColorSync problem. It is not the 2.2 vs 1.8 gamma problem either. Ctrl+shift+eject does not fix it. Creating a new colour profile does not fix it either. The usual SMC, permissions, safe boot, etc tricks don't work either.
Apple engineers have sent me a copy of TimingSnoop but were baffled by the display having a "fake" EDID (when run without SwitchResX TS detects no EDID at all). Since I refused to roll back my entire system to 10.6.4 or uninstall SwitchResX (it does not interfere??) they closed the bug stating "insufficient information".
10.6.4 did not have this problem, and my hardware is perfectly fine.
Rolling back the graphics to 10.6.4 fixes this issue (but creates other issues)
I'm looking for information on this. Has anyone had the same happen? Is it confined to sans-EDID displays?
Have googled a lot but I'm running out of search terms... Anything could be of help?
Thanks in advance.

Again, this is not the gamma problem that's fixed by just opening the display preferences and resetting the colour profile.
This seems to be somehow related to the display's EDID and the video adapter (Nvidia) not resetting properly when first unplugged and then plugged back in. My support request with Apple is more than a year old in total now and replies have been trickling but all of them add little (if anything at all) to a fix.
My particular problem is finding these "a lot of" people who are experiencing this problem. Everyone I've seen so far talks about the gamma/colours problem, never about the brightness and reboot. So yours is the first instance of someone having exactly the same problem. Hopefully we can find more people? Do you know where I should be looking?
Another idea I've had is to possibly talk to the OSX86 community? If Apple are not interesting in issuing a fix for this, maybe someone else has done some work? After reviewing Apple's code (at least that part which is made public) I'm pretty convinced this is in Nvidia's territory, and that gives me very little hope..
I'm interested to know if this has been fixed on Lion at all..? Ideas?

15.4" with lid open + external display

Hi there. I have a lovely new MacBook Pro 15.4", and have bought a Dell 20" UltraSharp external display. The Dell monitor has 1680 x 1050 resolution which is great. The only problem is I have inconsistent resolutions: when I close the lid of my Mac, and use it in closed lid mode, the resolution is great - 1680 x 1050. Everything's nice, clear & clean. But when I open the lid, the resolution reverts back to the Mac display resolution - ie, 1440 x 900. Everything looks bigger, slightly fuzzy and the icons on the desktop get all re-arranged. This is a hassle. If I push F7, the external display just comes up with the desktop background, which means I can't use it. I'm frustrated - could anybody point me in the right direction? Thanks very much.

What you're experiencing is normal when using the displays in mirror mode. The resolutions must match, which means that the monitor with the lowest maximum resolution will control, which in your case is the MacBook's internal display. To use the external display at it's maximum resolution, you need to run the displays in Extended Desktop mode; turn off Mirroring in the Displays system preference.
If I push F7, the external display just comes up with the desktop background, which means I can't use it.
Sure you can. Just drag your application windows over to that screen (which direction you have to drag will be controlled in the Displays -> Arrange system preference).
For more information, try searching your Mac Help for "multiple displays".
Hope this helps.

Lion, Dell External Display, no higher resolutions !!!!!

Hi,
Apologies if this is the wrong area for this to go into... but i think this is a problem with Lion rather than anything else.
Recently got a new MacBook Pro 15" (woo hoo !!!) and its running Lion.
When i go into the System Preferences > Display, the highest resolution is showing up as 1680x1050. That's fine.
Now when i plug my Dell 3007WFP external monitor into the laptop the maximum resolution that i can select is 1280x800. It recognizes the display, but just doesn't have the higher resolutions for me to be able to select.
I didn't have this problem with my old 17" MacBook Pro running Snow Leopard.
Any ideas on what the problem might be, and how i can fix it ???
Thanks in advance for all suggestions...
Silver

Update...
Found the solution to the problem...
Basically, its nothing to do with Lion or a fault on the MacBook Pro...
All new Macbook's ship with the Thunderbolt port. So if you want to plug an external display in which is 30" or more then you need to use a Mini Display Port to Dual Link DVI adapter. I was using a Mini Display to DVI adaptar, so i was basically getting half the resolution (1280x800) !!! Now with the dual link, i have full 2560x1600 glory !!!
Liink to the device at Apple Store... http://store.apple.com/us/product/MB571Z/A?mco=MTY3ODQ5OTY
Hope that helps someone else who has the problem.

Dell external display

I'm trying to hook up my macbook pro to a new Dell display i got via DVI to DVI. I've never had a problem hooking the laptop to other displays before, but when i plugged into the Dell the background image shows up but not anything else. No mouse, no applications.. nothing but the background image. It isn't oddly distorted in any way, and the screen on the laptop looks fine. I tried detecting displays, but nothing happened. My laptop and the external display are both set for 1920x1200 pixels. I tried hooking it from DVI to VGA, and when i did that the same thing happened with the background picture - only this time it wasn't the correct proportions. What's wrong?

smartalec452,
What you saw was normal. Evidently, you had it connected in "Extended Desktop" mode. Connect it again (using the DVI-DVI cable), then open your displays preferences. You can either configure where the extra Desktop space will be in relation to your built-in display, or you can select "mirroring," which would show the same image on both displays (probably what you were expecting).
Scott

Dell U2412M as an external display for my MacBook Pro mid 2008, the clarity of fonts are absolutely unimpressive. The settings do not detect the Dell U2412M (which is grayed out), are there any drivers that need to be installed ?

Dell U2412M as an external display for my MacBook Pro mid 2008, the clarity of fonts are absolutely unimpressive. The settings do not detect the Dell U2412M (which is grayed out), are there any drivers that need to be installed ?

I have posted this annoying Robles to bugreport.apple.com. Hope I can get locution (although Apple normally will not respond):
On a software name Appfresh, it alerted me to update my MBPr 15 inches running latest OSX 10.8.2, with Chinese Word List Update 1.2. When I clicked on Software Pdate, app Store return No update available.
My system have Chinese Word List Update 1.0 installed, and on October 5, 2012, Chinese Word List Update 1.1 was released by Apple, as alerted through AppFresh. However, this update never get updated on m system. I have to manually download chinesewordlistupdate.pkg from reviews.cnet.com/macfixit and install it manually. By doing so, I have Chinese Word List Update 1.1 on my system.
The same problem occurred again today on November 5, 2012, where Chinese Word List Update is released by Apple. again, it fail to update from Software Update menu.
Can you please:
1. Explain why this problem occurred. This is so annoying.
2. Advise me how can I get this Chinese Word List Date to update to version 1.2. Can you please send me the chinesewordlistupdate.pkg for version 1,2 so that I can manually install it on my system?
3. How can I prevent similar problem with he subsequent version?
Why Apple don't make this update standard as other update?
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What to look for when purchasing external display

Hey everyone,
First and foremost I want to say I am a web developer and graphic designer so what I am looking for is a display (not too big) 20" - 23" TV OR Monitor. This way when I am developing I am not making things HUGE so i can see them while other viewers can't. I have seen the display on a 30" screen and no that isn't going ot work.
I am now searching for an external display for my newly built office but I don't know what to look for besides DVI support. What resolution do I need to make sure it goes to? There is just so many options when looking at TVs or Monitors..
any input?

DVI support is a must and most LCDs in the size that you are looking for are going to have it.
Your MB can drive a display with a resolution of up to 1920 x 1200 which just happens to be the resolution of the 23" Apple Cinema HD Display. I didn't want to pay Apple prices for a display, so I went looking at Dell. I picked up a 20" 2007WFP display from them for about $360 shipped and it works like a charm with the Apple Mini-DVI to DVI adapter.
I prefer displays that use a S-IPS panel over the more common and cheaper TN panels. S-IPS is much better for color reproduction and that is why Apple uses them in their Cinema Displays. Dell uses the same panel is some of their 20" models - I got one - but some buyers are very upset that they got a TN panel instead of the S-IPS panel. I was lucky I guess.

External Display Troubles

This is a somewhat different problem from the previously discussed thread regarding the upgrade to 10.5.2.
I've been using my MPB 15" with a Dell 2007WFP 20" monitor for about two months now, via the DVI cable. I've been using it on extended desktop mode, with spaces set to a 2x2 configuration. This has worked well for me for, as I said, 2 months. Until yesterday.
I turned on the MBP, and instead of getting the expected login screen on the MBP display with the Leopard background displayed (minus the login window) on the external monitor, I get the expected on the MBP display, but a jumbled image on the Dell.
This is odd, so I restart only to find the same result. Now, fearing for my two month old Dell monitor, I connected it via VGA (using the adapter), and receive nothing but a blank screen. I also tested this on an Acer LCD monitor connected via VGA, with the same result. So, I know its not my screen, as it works fine with another computer.
I've called Apple Support, who weren't very useful. They encouraged me to insert the install disk and run a hardware test, which I did. With the monitor disconnected, I received no error codes. With the monitor connected, I received error code:
4sns/40000000:tgod
So, I have no idea what that means.
Any help? Also, any idea if a reinstall of Leopard would work?
Thanks for any help.

I think I'm having the same problem as you. My external display which is hooked up through VGA via the dongle my MacBook Pro came with. Ever since that **** graphics card update it seems my HP w2207h will not work in OS X. I have windows installed on my machine and it works just fine in windows. That is probably the thing that ****** me off the most about this. In OS X the external monitor recieves NO signal from my MBP but I have 2 displays in the preferences and can rearrange them as if they both worked. *** APPLE! This is pretty ridiculous problem to have and a patch needs to be put out pronto. If not luckly I have a Time Machine backup of before this **** graphic card update. After a couple more days I'm restoring it and not installing the graphics update.
Message was edited by: Nishimori

External display no longer working - stuck at blue screen

Hi everyone. I just don't know what in the bloody **** happened here.
Everything was working fine, I even had my macbook 13 upgraded to 10.5.6 and it always worked fine with my external DELL 2007WFP screen thru DVI cable and miniDVI adapter.
Suddenly when I got home today and plugged the miniDVI adapter, I saw the screen blinking forever at the blue screen that usually fades out to both screens with extended desktop turned on.
If I unplug the miniDVI adapter, everything gets back to normal on the macbook screen. I plug it again, I get the blinking blue screen.
Tried rebooting, unplugging everything else from the external screen, no luck.
If I boot the macbook with the external screen on and the macbook closed, then it is recognized fine and I can use it, but when I want to use both screens, it will blink again.
I need to use both screens as that's how I arranged my workspace.
Again, everything was working fine yesterday.
Thanks

Did you ever figure out what was doing this, and more importantly, did you get it fixed? I have the same thing happening to my macbook 13. It has worked fine in the past with external displays, both mini-DVI to DVI and mini-DVI to VGA, and many types of monitors/projectors. All of a sudden last week, i try to connect to my external monitor and I get the flashing blue - dark blue - light blue - repeat...
I tried the command-f1 trick to switch displays, and it sits there for a second, my desktop will flash onto the external monitor for a second, and then it'll give up and go back to the repeating blues.
I ran the hardware test, both the short and the long, to no avail.
I tried with the lid closed and an external mouse and keyboard. I tried this both from the startup and from when the laptop was already on.
Any ideas? Time to go to the genius bar?

How do I view an external display with my macbook pro closed?

How do I view an external display with my macbook pro closed? I am using a wireless keyboard and trackpad, and I would like to use a larger (Dell) monitor with my Macbook Pro closed.

Here are the rules for Clamshell mode:
http://support.apple.com/kb/HT3131

External Display doesn't work

Hey I have a mid-2010 macbook pro
I have been wanting to connect my dell moniter to my lap top as an external display. I bought a Mini Displayport to VGA converter and the whole nine yards. But whenever I try to connect the MD to VGA adapter to my laptop, nothing happens. My external monitor just goes to power saver mode and does nothing. The only thing that happens is that my laptop screen flickers every once in a while when the adapter is connected to it. Can anyone help me figure this out?
Thanks

I've just bought a LG L1900R monitor[1] which i am
plugging in via mini-DVI to VGA adaptor. The monitor
is native DVI, coming with DVI -> VGA adaptor.
What comes to my mind, though, is: since the monitor
is native DVI, maybe Apple's mini-DVI to VGA adaptor
is making the monitor belive the connection is DVI to
DVI?
that was it. mini-DVI to DVI worked fine.

Conflicting information about external display resolution - please help!

I have a MacBook Pro (15-inch, Mid 2009) with the non-reflective screen, Mini Display Port and NVIDIA GeForce 9400M Graphics processor.
According to these technical specifications (http://support.apple.com/kb/SP544), the built-in NVIDIA GeForce 9400M Graphics processor supports full native resolution on the built-in display and up to 2560 by 1600 pixels on an external display.
Armed with this information, I just purchased a shiny, new DELL U2711 (http://accessories.us.dell.com/sna/productdetail.aspx?c=us&cs=04&l=en&s=bsd&sku= 224-8284&redirect=1) external display which has a resolution of 2560 x 1440. Unfortunately, all I can get out of it is 1920 x 1080 (This is the maximum resolution I can select in the monitors system preferences panel.)
So Apple tells me this graphics card supports 2560 x 1600, but I also contacted NVIDIA directly who told me that this particular card's maximum resolution is 1920 x 1080.
Somebody has to be wrong. Is this monitor supported? Am I doing something wrong? Do I need to send this monitor back and buy a smaller display?
Any advice would be greatly appreciated.
O

Well - seeing as nobody could provide any help on this, I'll post the answer in case anybody else has the same problem.
It turns out that the monitor's resolution IS supported by the NVIDIA GeForce 9400M, so the information NVIDIA gave me was wrong.
The issue was the adaptor.
A regular Mini Display > DVI adaptor can only handle a resolution of 1920 x 1080. Turns out I needed a Mini Display > DUAL LINK DVI Adapter, which is a combination of USB and DVI which provides the required resolution of 2560 x 1600.
http://store.apple.com/us/product/MB571Z/A
Hope this is helpful to somebody.

Leopard "Forgets" External Display Resolution

I have a 17" MacBook Pro C2D (Oct 2006 revision) that I use at work with an external display (Dell E197FP) that is connected to the laptop via the DVI-to-VGA adaptor. The Dell has a native display resolution of 1280*1024 @60Hz and this is set via the System Preference's Display panel. The problem is that quite often when I connect the display in the morning OS X (10.5.6, at present) "forgets" the resolution that has been set and reverts back to its default for the display, which is 1152*864 @75Hz. It is baffling to me that it keeps forgetting the selected resolution for the display, despite recognising it, and that it selects such an odd resolution as a default. This happens about once per week at the moment.
Does anyone have an idea what is causing this and how I can stop OS X from being so forgetful?

Are you getting one to extend your desktop? I don't, I use my MacBook with the screen off using my external only with a keyboard and mouse plugged in. I run my Late 2008 2.1GHz MacBook with a GMA X3100 using a 23" Samsung wide ratio no problem in 1680x1050. It is high resolution. Make sure you click "mirror" in Display Prefs. Be certain that you don't simply boot to both because the external will appear grainy and only be putting out the native 1280 X 800 13" MacBook resolution on the new big LCD. There are many different ways to achieve this. With the LCD on and hooked to the MacBook, turn the MacBook on then quickly close lid after the chime. Give it some time. After it boots to the external, I open the lid to provide proper airflow, some may argue it's not needed.

External display resolution

I have Dell up2414q monitor which is capable of displaying up to 3840 x 2160. But when I connect my 11-inch Macbook Air (the latest 2014 model), which is capable of 2560 x 1600, shows only 1920 x 1080. This is the highest resolution listed in display setting.
I'm using Display Port cable and enabled Display Port 1.2 setting on the monitor. I went to Apple Store and asked, but they had no idea what was wrong. My OS is 10.9.3.

Hi there gen2014,
You may find the information in the article below helpful.
OS X Mavericks: Adjust your display resolution
http://support.apple.com/kb/PH14388
You can connect a second display and adjust its resolution. Once it’s connected, click Scaled, then select a resolution. Press the Option key while you click Scaled to see additional resolutions for the second display.
If you continue to experience issues, take a look at the troubleshooting steps in the article below.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
-Griff W.

DELL 2007WFP as External display

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