Mini DVI to HDMI hookup not working.

I just purchased the Mini DVI to HDMI hookup for my MacBook Pro. I plugged it into the HDMI port in my Samsung TV and the blue screen appeared onto my Mac for a second and then it went back to normal. My TV isn't detecting the MacBook and the Mac is back to normal. Is there something in the set up/ settings that needs to be done? I'm REALLY hoping and praying for an easy fix to my silly problem.
PLEASE HELP!!!
- Courtenay

I tried it both with Mirroring checked and unchecked. I'm also not sure what my resolution should be set at so that could have something to do with it.
As far as I can tell, the MacBook is detecting the TV since the blue screen pops up and disappears once it's plugged in. It seems to be the Samsung TV that's not detecting the MacBook.

Similar Messages

  • I upgraded to mountain lion, now my mini dvi to hdmi doesn't work

    I installed mountain lion and now my mini dvi to hdmi doesn't work.  I did a disk permission repair, but that didn't help.  Any suggestions?

    My internet card will only work on 32bit,and it sounds like mountain lion only works on 64bit so that must be my problem. I think I will have to upgrade my internet or go back to lion.

  • Mini-DVI to HDTV setup not working right

    Hi folks,
    I have an iMac8,1 (24" intel with mini-dvi video port) that I am trying to hook up to my 50" plasma TV for surfing the web and looking at photos from the sofa. I've hooked it up with an apple mini-dvi to composite/S-video adapter with very poor results. As soon as I plug the adapter into the mini-dvi port, the iMac changes to a 4:3 aspect ratio at a very low resolution. The video is mirrored to the TV, again at a 4:3 aspect ratio and the resolution is awful. Text is all but unreadable.
    I try switching resolutions from the display preferences pane, but nothing seems to work right. There are two display detected...the iMac and NTSC/PAL. Changing the resolutions on either of them don't seem to behave properly at all...everything just stays really coarse on the iMac no matter what, and the TV is horribly fuzzy. If I unplug the adapter from the iMac, the screen returns to 1920x1200.
    Any thoughts? Should I be using a mini-DVI to HDMI for the video instead of the composite/S-video adapter?
    Steve

    Hello mmogie,
    The problem is not with in the adapter. The quality on the external LCD or Plasma depends the most on the graphic cards. Thats that.
    And in your case your problem is the mirroring, you will get really bad quality on the external screen because you are trying to mirror it with the one on our iMac and the Plasma screen supports different resolution then your iMac does so what happens is when you mirror it the graphics cards tries to find the middle ground ...
    Now what you need to do is configure the plasma as extension not as mirror (Under Display Preferences>Displays ) select the second tab "Arrangement" and uncheck the mirror Displays.
    So what the graphics will do is find you nice proper resolution for your imac and your Plasma separately and you will have good quality picture, and from there you can change the resolution to tweak it a bit more...
    Now to take a step further if you want your Plasma to be the primary screen for your OS X and for you to have the dock on there, run apps and browse the web, all you have to do is from the "Arrangement" tab in the Displays Preferences just point the mouse on the wthite line and click and hold to "Drag and drop" it to your second screen "the Plasma" in your case and you will see how the dock and the task bar will show on the Plasma and you take it from there....
    Sorry for the long explanation, I hope this helps. Please let me know.
    Good Luck,
    Goran

  • Mini-dvi to video does not work

    I have the 13-inch white macbook purchased in 2008. I just bought a mini-dvi to video cord and tried hooking it up to my TV using RCA and S-video and neither work. When I plug the cord into my computer, the resolution on my computer changes and then when I plug it into my TV it does not appear on the TV. When I change the display resolution on my computer to the lowest option, I can see the display from the computer on the TV rapidly moving across the screen and it is extremely distorted and doesn't appear to have any color. I chose detect displays and this did not do anything. Am I doing something wrong? Why won't my computer image display on the TV?

    I also have the same issue. SVideo / RCA adapter purchased from Fry's Electronics. Apple Brand. Worked the week I bought it, and after a couple of updates, stopped being reliable.
    Now, after some trial and error, I can get it to work, its just painfully convoluted.
    The trick for my system is to keep trying it, (re-seating the adapter at the mini-dvi connection) and eventually it works.
    Iv found that It only works when it "latches" to the video adapter instantly.
    Sometimes its 3 times. Sometimes its 15. Quite random.
    Seeing as how I don't like watching movies on a 13" screen. I just have to be patient.
    I have been searching/waiting for some kind of apple firmware, or video adapter update that adresses this, as I dont believe its anything more than a software bug.
    Any useful info would be much appreciated.

  • Mini dvi to hdmi, tv not displaying imac screen it remains black

    just brought brand new mini dvi to hdmi adapter.... when i plug in the accessories the imac recognises the hdtv but the tv screen remains black?
    HELP
      Chipset Model:          ATI Radeon HD 2600 Pro
      Type:          GPU
      Bus:          PCIe
      PCIe Lane Width:          x16
      VRAM (Total):          256 MB
      Vendor:          ATI (0x1002)
      Device ID:          0x9583
      Revision ID:          0x0000
      ROM Revision:          113-B2250L-259
      EFI Driver Version:          01.00.259
      Displays:
    iMac:
      Display Type:          LCD
      Resolution:          1680 x 1050
      Pixel Depth:          32-Bit Color (ARGB8888)
      Mirror:          On
      Mirror Status:          Hardware Mirror
      Online:          Yes
      Built-In:          Yes
    PANASONIC-TV :
      Resolution:          1920 x 1080 @ 60Hz (1080i)
      Pixel Depth:          32-Bit Color (ARGB8888)
      Main Display:          Yes
      Mirror:          On
      Mirror Status:          Master Mirror
      Online:          Yes
      Rotation:          Supported
      Interlaced:          Yes
      Television:          Yes

    Difficut to say why it won't work, but my guess is your vintage iMac (about 2007) was never designed to output via HDMI. Your adapter appears correct (thanks for the Amazon link) so if you want to persist, you can contact Amazon and request and exchange to check it. But I suspect you will need to use VGA or if your TV has it DVI which would mean using a mini-DVI to DVI adapter.
    One last thought is you could invest in an Apple TV and then do it wirlessly. That would work too but requires and AppleTV to accomplish it, of course you can use the AppleTV for streaming other data too including video, photos, music etc....

  • Thunderbolt iMac - mini-dvi to HDMI - Image not sharp on TV

    I am trying to use my TV as a second monitor for my newish iMac.  I used to do the same thing with my macbook (2006) with a mini-dvi to HDMI adapter.  The signal then was crisp and typical of 1080p.  I recently tried two different mini-displayport to hdmi adapters to output my monitor from the thunderbolt port of the iMac.  The first was a cheap one and the second was a better one.  Each time, the TV says the signal is 1080p, but the image is blurry, although sound does work.
    The TV and the HDMI cable is the same as my old macbook which worked perfectly.  Also, I have been using Windows 7 with bootcamp and the image is the same.  This limits the problems to the graphics output, port, or adapter.  As multiple adapters still have issues, I don't know it anything else may help it. 
    Is there much possibility that there is something with the computer, either graphics card or port itself, that could cause this, or maybe something software wise that could be an issue?

    Check under the system settings to make sure you are putting out the correct signal. If it is set at the correct resolution then your TV doesn't have enough Hz. Hope that helps!

  • Mini dvi to HDMI no longer working to t.v.

    Hello. For months I was able to use the mini dvi to HDMI to use my Samsung HD t.v. as a monitor from my Macbook Pro. Suddenly one day when I started it up, the t.v. said "No Signal" and then the Macbook Pro goes to sleep. If I take out the mini dvi it will wake up again, but the moment I put it back the t.v. goes back for a second the way it usually would when it first recognizes the mac, then the mac goes to sleep again. If I look at the built in display, I can see that it isn't even detecting the Samsung is hooked up any more. Could the video card have already gone bad? It isn't even six months old.

    I'm having similar problems. I have a Toshiba Regza 1080p HDTV and frustrated that I cannot get my audio and video to work selecting one INPUT source on the TV. I used to stream Netflix with the minidiv and a separate mini stereo cable and it worked! until I moved and voila it stopped working. Grrrrr. I switched to a mini stereo y cable when a technician told me perhaps my audio cable was bad. Tried every combination of display setting on my Macbook Pro (OSX 10.5.8) and I'm stumped. Little to no sound setting on my MBP as some forums advise that I select an HDMI output. BL: My MBP sends audio out (thru HD Colorstream 1 audio input) and video using minidvi-HDMI to Toshiba's HMDI 1 (tried HDMI 2; etc.) Nothing works. Since only one input may be selected thru the HDTV at any given time I cannot figure out what I need to do the get the audio from Colorstream HD1 and HDMI video to synchronize. I just read about the Mini DisplayPort to HDMI Adapter Pro w/Optical Audio cable and wondering if that will push my audio from MBP and video to the Toshiba HDMI port thus allowing me to select one input source on my Toshiba 1080p HDTV and perhaps being a solution? Before I go out and buy this I need some help from you smart folks. Thank you!

  • MacBook Pro Mini-DVI to HDMI problems - not consistent

    I have a MacBook Pro and I'm trying to hook my LG LCD up from the Mini-DVI to HDMI cable.  Sometimes the TV is recognized no problem, but sometimes the TV doesn't receive the signal, any thoughts on how to make sure the TV is always recognized?
    I saw a post once about having the macbook boot connected to the TV to recognize it, and it worked, but I think I'm missing something again because I can't seem to do it again!  I'm looking for the post but can't find it!

    Just to add, i think the cables are all in working order as when i plug in the adapter to the macbook the screen temporarily goes blue then back to normal desktop. This only happens if the cables are plugged into the back of the TV. However they two still wont recognise each other.

  • IMac, mini-DVI to HDMI connection stopped working

    Hi,
    I recently switched from my good old white plastic iMac (late 2006, 20", Lion, 10.7.5 ) to another, slightly newer alu-body iMac (mid 2007, 20", Mountain Lion, 10.8.3).
    As before I used a Samsung SyncMaster as "desktop extension" connected via mini-DVI to a mini-DVI to HDMI adapter ( http://www.amazon.de/gp/product/B0088BUT40/ref=oh_details_o02_s00_i00 ).
    The Samsung monitor is recognized, system information is able to report about it, system logs are fine, nothing special - BUT: no image. The Samung display remains dark.
    I already searched the internet, the community, the whatever came to my browser.
    I think it is an HDPC or windowserver issue but I have no idea if I can fix it.
    Any ideas?
    Sven

    Do you have the correct HDMI input selected in the TVs menu...?
    Aditionally, there might also be settings for connecting a PC to the TV.

  • Mini-DVI to HDMI Cable Not Recognized...

    Hello all!
    I just bought http://www.amazon.com/gp/product/B002LEY28O/ref=oh_details_o00_s00_i00?ie=UTF8&p sc=1 from Amazon.com and it arrived today but when I plugged it into my iMac (Early 2008) literally nothing happens. I have tried power-cycling everything, starting up things one at a time, everything. (Searched the internet to!) Here's the specs of my stuff:
    iMac (Early 2008):
    2.4 GHz Intel Core 2 Duo
    ATI Radeon 2400
    2 GB 800 MHz DDR2 SDRAM
    1 mini-DVI output port
    ||
    I am currently staying in a hotel so I do not have all of my usually electronics but I have tested it on an LG HDTV and a ViewSonic HD computer monitor and both do not work, it just display "no signal" and the iMac doesn't know that anything is different, the blue screen that is supposed to fade simply doesn't and under the "display" section there isn't an "arrangement" tab and clicking "detect displays" just freezes my computer (cannot move mouse) for 1-2 seconds. I ruled out the HDMI cable that I have by using it with my Xbox One and it works fine. Any suggestions?
    Thanks Everyone!
    Also, you do not have to explain it to me like I'm 5. I am well capable of making my way around a computer.

    Hello Ratnik,
    I'm having the same problem. Below is my question.
    If you get any closer to a solution, might you please send me the result?
    http://discussions.apple.com/thread.jspa?threadID=2456882&tstart=0
    Thanks,
    Stacey Bindman

  • Mini DVI to VGA adapter not working

    Hello -
    I just purchased a new Mini DVI to VGA adapter to use with my Mac Book. The day I bought it I plugged it in and worked great! Now after disconnecting it and reconnecting back to my Mac Book things are not so good. When I hook everything up to each other the monitor shows "no signal". Using Systems Preferences/Detect Display does not help at all. Am I missing something obvious here? I'm a new Mac junkie.

    Here is an Apple article on the subject of having no video on an external monitor. It's written about the Mac mini, but it applies equally to any other Mac.
    http://docs.info.apple.com/article.html?artnum=301345
    And here is another Apple article that is more generalized and with fewer suggestions, though it might be a good place to start from. Good luck.
    http://support.apple.com/kb/HT1573

  • Mini DisplayPort to HDMI Adapter Not Working

    I just got a mini displayport to hdmi adapter that I ordered from dealextreme and it does not work. The adapter had very good reviews and not one review said it didnt work. When I plug in the adapter (with or without a hdmi cable attatched to it) to my macbook, the screen blinks and then goes back to normal. When everything is properly connected the tv shows no input signal (I am on the correct input channel) and the screen doesnt appear in the displayas settings in my macbook pro. I tried to reboot the macbook, shut down and turn on the screen and nothing seemed to work. The detect display option in the system preferences didnt help. I appreciate any help I can get.
    -Yonatan

    I just got a mini displayport to hdmi adapter that I ordered from dealextreme and it does not work. The adapter had very good reviews and not one review said it didnt work. When I plug in the adapter (with or without a hdmi cable attatched to it) to my macbook, the screen blinks and then goes back to normal. When everything is properly connected the tv shows no input signal (I am on the correct input channel) and the screen doesnt appear in the displayas settings in my macbook pro. I tried to reboot the macbook, shut down and turn on the screen and nothing seemed to work. The detect display option in the system preferences didnt help. I appreciate any help I can get.
    -Yonatan

  • DVI to HDMI Audio not working

    So I bought a DVI to HDMI and I'm trying to play movies off my laptop to my HDTV and when I try to change the audio output, it does not show HDMI output. I bought this macbook pro 15" in september 2009. Can anyone help?

    There is no audio signal emitted from a 2009 MBP's Mini-DisplayPort. You will need to (a) make a separate audio connection between the MBP and the TV set, or (b) use a special adapter that combines a TOSLink or USB audio signal with the MDP video signal and feeds both into an HDMI cable:
    http://kanexlive.com/products/iAdapt51.html
    http://kanexlive.com/products/iAdapt20.html
    Other vendors also offer similar adapters, perhaps at lower prices.
    Audio output through the Mini-DisplayPort was introduced in the current MBP models, starting in April 2010.

  • Mini DP to HDMI does not work with Mac Mini 2014?

    Hi All,
    I just upgraded from a Mac Mini 2011 i5 to a Mac Mini 2014. My old Mini worked fine running 2 displays with an HDMI cable to one monitor and a Mini Displayport to HDMI from the Thunderbolt port to another monitor. I can't seem to get the new 2014 Mini to see the monitor from either the Thunderbolt ports. Is this no longer supported?
    Thanks
    Ray

    Hi there LaureynR,
    You should still be able to do this. I would recommend taking a look at the article below for troubleshooting steps.
    Apple computers: Troubleshooting issues with video on internal or external displays
    -Griff 

  • Connecting a mini displayport to HDMI does not work

    I recently purchased an new MacBookAir and bought a new mini diplay port to HDMI adapter. However, when I connected the port to my LED Samsung TV, only the display screen from the laptop was projected on the LED TV Screen. The icons were missing and couldn't even find the cursor on the screen. What should I do to have this work?

    It's working.  This is called 'extended desktop mode'.  Grab an application and drag it off the right side of your monitor and it will appear on the TV.
    You can visit System Preferences > Displays > Arrangement tab for all the options.
    To mirror your monitor on the TV hit CMD F1
    Regards,
    Captfred

Maybe you are looking for