MacBook Pro :: No DVI Signals - Display Port Not Working
Aug 8, 2010
I have a year old 17" MBP. I use it with a 24" Dell and have had no problems. Occasionally I hook it up to my HDTV with a long HDMI cable and a DVI to HDMI adapter. Tonight I wanted to watch something so I unplugged the Dell and plugged in the TV, but nothing happened. I noticed on my MBP everything was on the one screen as if dual display was not working. I unplugged the mini display port, screen goes blue for a sec, and the same screen comes back up. Plug it back in, screen goes blue for a sec, and the same screen comes up. Repeat, same results. The Dell when unplugged says "no dvi signal" but plugged in is black. Restarted 3 times, repaired permissions.... nothing.
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Feb 27, 2010
I hooked my Macbook mini-display port up to my new Sony 32" TV and it worked fine for a month or so, but then it stopped working. Now when I plug it in the TV says there is "no signal" and the laptop doesn't detect the display. Nothing happens when I plug it in. I have tried two different HDMI chords, but only one mini display chord.
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Sep 2, 2010
I just got the mini display to hdmi cable for my macbook pro. So far it works with the tv. It displays everything but there is one probably safari doest work.
Airport shows that I am connected but safari doesnt connect.
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Jun 2, 2010
I finally upgraded from my 15" PowerBook 1.67 to the new 13" MacBook Pro 2.66. On the PowerBook I would usually run an external display using a single link DVI cable. I have read about the issues with the apple mini display adapters not working on DVI-I or non fully digital displays, but since I had been running the external via single link DVI (digital correct?) I figured that I wouldn't run into any problems. I did some troubleshooting with what I had and plugged my computer into my TV through the mini display adapter to a single link DVI to HDMI cable and all worked fine. Do you think that a dual link DVI cable could solve the problem connecting to my monitor? Or is my monitor flat out incabable? Third party adapter? Worst case I could just go VGA, though I don't want to. My monitor is a Sceptre x20.
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Mar 5, 2009
Just a piece of info for those considering driving a 30 inch Monitor with the Mini: The mini-display port to Dual Link DVI adapter Apple is offering is not working. There are some other forums discussing this problem with the unibody Macbook pro. I've been using mine since Dec. At irregular intervals the screen becomes blurry (weird double lines all over), and the only thing that works is plugging back in or (more harmless if you have multiple projects up and don't want them to be scattered all over the screen) Control-Shift-Eject to put the display to sleep, then wake it back up after a few seconds with mouse or keyboard. This can be very annoying as sometimes one has to repeat it multiple times. Apple is aware of the problem, but has not come forward with a solution. I just don't want you guys to be disappointed in your new Mini with a capable graphics card...
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Mar 17, 2009
as the title suggests, I purchased a Mini Display port to DVI adapter for my Aluminium Macbook but when I plug it in and connect it to my Dell 24inch monitor, it doesn't detect it.
I remember reading about 2 different types of DVI but i was assured that the Macbook supports both types.
Anyone have any ideas?
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Feb 26, 2009
Is it possible to have the Mac Pro output signals from the optical and the headphone port on the front of the case? I like to have my speakers going as well as have one cup on my ear when listening. Surely there must be an application out there that forces OSX to do this.
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Apr 15, 2009
Problem:
Apple Mini Display Port does NOT work at resolutions over 1600X1200 on NON Apple Cinema Displays.
That means if you own any other brand of monitor such as NEC, Lacie, etc. you will NOT get native resolution on your 24 inch monitor as it is stuck at a maximum resolution of 1600X1200.
This story was mentioned on "Macbreak Weekly" show 4-14-2009. I have since checked with a few people and it would indeed seem to be true at this point.
I REALLY hope a solution from Apple comes soon and this is not some new policy of theirs. If so, it may be the last Mac Pro I will or can ever own. The reason is I do a lot of 3D work with C4D, Vue, Modo and Photoshop CS4 so I MUST have a monitor like the high-end ones from Lacie that have 100% color gamut and Adobe RGB. I can NOT be tied down to an Apple Cinema display due to that work. At this time, it seems this means I would only get 1600X1200 resolution on that 24 inch monitor.
I am HIGHLY concerned by this. Has anyone else confirmed this too and if so what the heck is Apple thinking or better still going to do about it? I LOVE my Mac Pro but if they start forcing Apple displays on us then I won't be buying another Mac, it's just that simple.
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Apr 15, 2009
Apple Mini Display Port does NOT work at resolutions over 1600X1200 on NON Apple Cinema Displays.
That means if you own any other brand of monitor such as NEC, Lacie, etc. you will NOT get native resolution on your 24 inch monitor as it is stuck at a maximum resolution of 1600X1200.
This story was mentioned on "Macbreak Weekly" show 4-14-2009. I have since checked with a few people and it would indeed seem to be true at this point.
I REALLY hope a solution from Apple comes soon and this is not some new policy of theirs. If so, it may be the last Mac Pro I will or can ever own. The reason is I do a lot of 3D work with C4D, Vue, Modo and Photoshop CS4 so I MUST have a monitor like the high-end ones from Lacie that have 100% color gamut and Adobe RGB. I can NOT be tied down to an Apple Cinema display due to that work. At this time, it seems this means I would only get 1600X1200 resolution on that 24 inch monitor.
I am HIGHLY concerned by this. Has anyone else confirmed this too and if so what the heck is Apple thinking or better still going to do about it? I LOVE my Mac Pro but if they start forcing Apple displays on us or limiting the display ports, then I won't be buying another Mac, it's just that simple.
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Jul 1, 2009
I have a 15" unibody MBP bought in Nov '08.
Had been using the Mini Displayport > DVI adapter just fine with both HDTV and Dell monitor, BUT then all output has stopped completely!
No monitor is detected by the laptop (although the display does blink blue, as if it had detected it), tried different cables, different displays, using the Displayport firmware update, speaking to Apple, deleting the com.apple..plist files, etc
Edit: it also doesn't work in XP on Bootcamp
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Jul 5, 2009
6 weeks ago I bought a Mac Pro Dual Quad 2,66 with an ATI HD 4870 graphic adapter. System is OS X 10.5.7. I try to get an Eizo 30" display (SX 3031W) working with this configuration. Using the signal connector #1 on the Eizo , the display will show up to 2560x1600 resolution (as it should be) but after selecting this option will fall back to 1600x1200 pixel. I tried installing on the DVI plug of the card and also on the minidisplay-port using the "Mini Displayport to Dual Link DVI adapter" from Apple but up to now it does not work.
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Jun 17, 2010
When I tried to power it on, it didn't work. There was no startup chime, but power controller was lighting. There was nothing on a display, it only flashed for a second but then nothing.. Apple on the backside doesn't lights.Then I connected it to an external display but it only said "no signal" or something else. I also tried to do this
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Jul 8, 2009
For anyone wanting to use their Mini Display port connector on their 4870 with a panel that has the standard size display port connector, I've found a source for a cable that works perfectly. It has the mini display port on one end and a full size display port on the other. Cost $19 bucks shipped and works like a champ. The cable is nice and compact, thinner and more flexible than my DVI cable. I'm quite pleased! ( it's the little things.... )
Here is the cable I picked up: Mini Display Port to Display Port cable
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Aug 11, 2009
How many of you would like to see a HDMI Port? Why the miniDisplay port? Why not remove ethernet jack and miniDisplay port and replace it with a HDMI port. That way one HDMI cable feeds digital video AND audio. Am I the only one thinking of this?
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Apr 22, 2012
My iMac is I think 2009 model. It comes with a mini-display port.
I have a Dell monitor which has a Display port input and I want to use it as a second monitor. The DVI input in the Dell monitor is taken up.
But how do I connect from the mini-display in the iMac to the Display port in Dell monitor ? Doesn't look like aplle sell this connector cable !
Info:
15.4, Mac OS X (10.6.8), 27" iMac - 4GB RAM, 1TB HDD, 1GB ATI Radeon HD, i5 QuadCore
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Jun 16, 2009
I have a mid-late 2008 MacBook connected to a Dell U2211H monitor using a Mini DisplayPort -> VGA connection.
When I use 1920x1080, I only get 60 Hz and the display is a fuzzy (text). Also, there are black bars. Why?
Will my issues be solved using a Mini DisplayPort -> DVI connection? Or should I exchange it for the 2209?
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Jun 5, 2012
I use MBP (late 2011). I find the hunderbolt port to be similar to the mini-display port of older mac. I wish to have another display, but not ready to spend $999 over a thunderbolt display from mac. So would like to know if a Mini-diaplay port converter from apple would help me connect a exernal display via the thunderbolt port?
Info:
MacBook Pro, Mac OS X (10.7.4)
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Apr 29, 2010
So I've got a Macbook Air, a cheap 3d party miniDP to DVI dongle I just got from ebay that's connected to a DVI to VGA adapter which is in turn hooked up to an old-ish VGA monitor. The monitor isn't receiving any signals, so I'm wondering if I'm right in concluding that this setup isn't supposed to work?
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Nov 22, 2009
I am having issues with my Dual Band 1TB time capsule for some reason the damn ports won't forward I have enabled the correct settings with the ip address and the ports, but when I use a program to test if the ports are open they are always closed, regardless on pc or mac. Does anyone have a solution to this? I even reset my Time capsule to see if it would work, but no luck.
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Mar 16, 2010
Relevant newbie to the mac world. I have a MBP late 2009. I bought a third party Mini display port to HDMI converter so I can hook the MBP to my 46" Samsung screen.
This works fine, no major issues here. However the picture is not great. I compared watching a standard definition TV show through the MBP then burnt it onto a DVD. The DVD (using the PS3 as my DVD drive, connected via HDMI) had superior quality than through the MBP.
Also the picture does not quite fill the screen. There is a small black border running all the way around the screen. Does not sound significant but when doing the same comparison as above, you notice the difference when via DVD the movie fills the screen. I have played around with the resolution settings. Those that fill the screen chop bits of the mac desktop off, so thats no good either.
So I am wondering why this is? Is it because the mini display port is not a DVI port, hence I am not getting true HD quality picture? How can I overcome this if at all. I'm thinking of getting a mac mini as a media hub/HTPC but want to ensure I dont encounter the same problems.
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Mar 6, 2009
I'm getting a high resolution, and it looks alright, but it's not fully using the widescreen. That's "aspect" right? Well anyway, I also have a 19" display and it works perfectly. My Xbox, cable box and movies all use the full widescreen on the Acer, but the Macbook with the super amazing Mini DisplayPort doesn't even use the full resolution. What's with that? I thought the reason they had this new port and a $30 adapter was for higher resolutions!
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Mar 5, 2012
I want to buy the 27" iMac - but only if I can use it as external monitor for my Lenovo laptop when working from home. A the Apple store in London they said that this is possible with a Belkin converter from hdmi to mini display port (with a USB power caple to turn it into an active signal). The laptop also has a displayport.
Info:
iMac
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Oct 8, 2009
As the title says, I need a new monitor for my old G5 as the old monitor for it went bust. Apple does not make the old displays that came with the unit anymore and the only available monitor is the new LED ones ? but they all come with mini display ports
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Apr 25, 2009
I am about to buy a new 24" iMac. I currently have a Dell 2408WFP 1920*1200 display which I would like to use as a second display for the iMac.
Which Mini Dislpayport to DVI adapter do I need? Single-Link or Dual-Link?
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May 13, 2009
i have a 15 inch apple studio display which has ADC (was partnered with the cube) and I purchased a DVI adaptor so it now works fine with the DVI port on the macbook pro. I am considering a new mac notebook (not sure which yet) but as these have the new mini display port, is there an adaptor that would slot into the DVI end of my current one, so it would work with the new macbook?
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Nov 9, 2010
My employer is giving me a new HP (nope, no macs there ). I am thinking of getting the 12" 2540P Notebook for portability. Question is if I can connect that to my iMac 27" and use the iMac as a monitor?
There is a Displayport on the HP - can a simple cable like this do the job?
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Apr 28, 2009
I see Dell and HP monitors with Display Port. Is this the same thing as what Apple uses only with the terminology slightly changed?
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Dec 12, 2008
I saw this at wikipedia: Auxiliary channel can be used for touch-panel data, USB links, camera, microphone, etc. [URL] So is it possible to have an extra USB via the mini display port? only one USB port is absolutely inadequate.
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Jan 20, 2009
I have a Unibody MB. I purchased the MiniDP=>DVI and MiniDP=>VGA adaptors. I want to be able to use my Netflix account to watch movies on my MB, but by connecting the MiniDP to my TV.
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Sep 23, 2009
Ok, yes I've searched but I'm a little unclear. I have a Macbook Pro the most current version (matte screen!). I need to be able to get RCA/composite video out for presentations but would like to also have DVI capability. Can I go mini-display port to DVI using this adaptor and then go DVI to RCA using this adaptor [URL[? My question is because I know there are different kinds of DVI and my understanding is that the current MBP uses DVI-D which I wasn't sure would work in this kind of setup. This was so much easier when Apple just made the correct adaptor... Anybody ordered from monoprice.com? I've seen it mentioned in a few posts and their prices are much lower than Apple's...
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