Mini-DVI to HDMI Issues

I have an early 2008 Macbook and have been using a Mini-DVI to HDMI adapter and HDMI cable to connect to my TV. It was working great until I upgraded to OS X Lion. Now the video is laggy/glitchy on the TV and the computer when the cable is plugged in. Any help?

Try gently moving the adapter into different positions. My mini-dvi to dvi adapter will only work if it is tilted upwards at about a 20 degree angle relative to the tabletop. I usually wedge a pen or a pencil below it to hold it at the proper angle. It's a little redneck, but I like shopping at walmart and only spent $5 on the adapter.

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Mini dvi to hdmi connection issues

Trying to set up my 2007 imac to my Panasonic tv. I have a mini dvi to hdmi converter and an hdmi cable connected to my tv. I only get a blank screen on the tv, but it seems that the computer is connecting. When i go into sytem preferences for display monitoring I get the second screen saying Panasonic and set up which reolution I want but theres no way to detect the display. Any help getting picture would be greatly appreciated!!

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 Connection Issue

I have a July 2009 white macbook 2.13 GHz Intel Core 2 Duo Mac OSX 10.5.8.
I have been trying to connect my laptop to a Sanyo 42in HDTV and a VIZIO 47in with no success. I purchased two different mini-DVI to HDMI cables(both with great reviews) and neither has worked. My laptop does pick up the signal from the TV and the TV does notice something has been picked up because it ocassionally flashes or says invlaid format. I have tried several different screen resolutions and have "Mirroring ON".
Any suggestions on what I can try to make this work?
I would really appreciate any help .. THANK YOU!

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.

VGA vs Mini-DVI to HDMI adapter

I'm about to buy an external monitor to use with my MacBook Pro late 2008. I do understand HDMI (digital) looks much better than VGA (analog), so I'm thinking about buying a Mini-DVI to HDMI adapter. My questions are:
Does the Mini-DVI to HDMI adapter decrease video quality? Is it noticeable?
Is it worth buying the adapter? If so, are there any known issues with third-party adapters?
Thanks in advance for your time!
João

If your macbook has mini-DVI then HDMI or no HDMI you will not get any audio passed through the HDMI connection because DVI does not pass audio. You would need to pass the audio separately via analog stereo line out.
But what difference does it make anyhow? You intend to use this as a monitor as opposed to hooking it up to a HDTV.
So long as you use a digitial interface HDMI, DVI, mini-displayport, etc. you are not going to loose any quality. It's digital. It either works or it doesn't. VGA, being analog, will of course be less quality.
I don't even know why you care about converting to HDMI when you could just convert mini-DVI to standard DVI and use a monitor that accepts standard DVI. They're plenty of those around.
Another consideration with a DVI interface is that if the monitor has a resolution greater than 1920 x 1200 you need a dual link DVI adapter as opposed to a single link DVI adapter.

My Mini-DVI to HDMI to TV connection stopped working - tried everything

I have been using a generic mini-dvi to hdmi dongle plus a HDMI cable to connect my white intel imac to my television. It has worked great and flawlessly until very recently. Now the TV says "no signal". Screen still flashes blue when dongle is plugged in/out. Flashes blue when TV turned on/off. Nothing was changed in my setup. I have tested the mini-dvi port with the Apple Mini-DVI to S-video/video dongle (worked), tried a new minidvi-hdmi dongle (fail), tested the HDMI cable (good), and tested other ports on the TV, as well as resetting the TV to defaults. Still not working.
At this point, I was assuming it was a software problem, even though starting from a restore disk or in safe mode did not solve this. Could this be a software issue? Is my video card only doing analog signals? My TV is less than 6 months old, so I doubt its that. Any advice would be greatly appreciated. I usually can solve these things myself, but this time it's vexing me. Thanks.

Hi kp
Disconnect everything and reset the SMC > http://support.apple.com/kb/HT3964
+1. Shut down the computer.+
+2. Unplug the computer's power cord.+
+3. Press and hold the power button for 5 seconds.+
+4. Release the power button.+
+5. Attach the computers power cable.+
+6. Press the power button to turn on the computer.+
and restart with a PRAM reset > http://support.apple.com/kb/HT1379
+1. --Shut down the computer.-- +
+2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.+
+3. Turn on the computer.+
+4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.+
+5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.+
+6. Release the keys.+
Shutdown the iMac +(personally I do not like hot-pluging)+ and re-connect everything in the following order.
Cable to TV > Adapter to Cable > Adapter into the iMac (last) > turn on TV > startup the iMac > Open the Display Preference and select your personal settings.
Dennis

Mini-DVI to HDMI Problem

Hi, I bought a Mini-DVI to HDMI adapter like this one: http://www.hdtvsupply.com/mini-dvi-to-hdmi.html to be able to hook up my macbook (2007 white version) to my HDTV. However, since HDMI is traditionally for both video AND audio, the HDMI channel on the TV can only output audio coming in through the HDMI cable. There is no sound, because I am only feeding video through that channel.
To solve the issue, I purchased the following 6ft 3.5mm Stereo Plug/2 RCA Plug Cable: http://www.monoprice.com/products/product.asp?c_id=102&cp_id=10218&cs_id=1021804 &p_id=665&seq=1&format=1#largeimage. The problem is, that I am only able to play sound from my laptop on my HDTV on one channel, and video from the Mini-DVI to HDMI adapter on another, but not both audio and video at the same time. What is the SIMPLEST way to fix this? I wouldn't want to purchase any additional cables if possible
Many thanks for your help in advance!!!

Thanks for that. I have a Y adapter (3.5mm stereo headphone jack to RCA sound just like you said). Under input options on my TV, I can select either HDMI1 input (which gives me video only) or AV1/S input (which gives me audio only) - not both at once...Could you explain how I can get stereo audio on my TV?

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!

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.

Connecting mid-2007 iMac to LG TV via mini dvi to HDMI

I am trying to connect my mid-2007 iMac to my 42" LG HDTV to no avail. I am running iOS 10.6 Snow Leopard. I bought the mini dvi to HDMI adapter and plugged the iMac into the TV. I went to the display tab in the system settings and see that the iMac recognizes the tv. I went to the arrangements section and it recognizes the tv. When I click on gather windows it even calls it the LG TV. However, there is nothing showing on my TV. It says no input detected. When I move my mouse to the right side of the screen it disappears like it is going to a second monitor.
Any thoughts?

Hey Corinthone, did you ever figure it out? I have a mid2007 iMac running snow leopard & a 120hz LGTV 42". I was having the same issues as you(yes Frankie, I made sure I was selecting the correct hdmi input). Now with the same setup, my LG recognizes the HDMI input from my iMac. It says connecting but then 'no signal' on the screen. The hdmi2 is still showing a connection in 'inputs' just no picture on TV. I started changed the setting via my mac but still nada. The lg is 120hz. Does that have anything to do with it? Thanks

IMac (mid 2007) to LG 32LH20 via mini-DVI to HDMI

Seems like this is a fairly common problem from what I've read, but I'm having some issues connecting my mid-2007 iMac to my LG 32LH20 HDTV via a mini-DVI to HDMI adapter and an HDMI to HDMI cable. The adapter and cable were purchased off of Amazon (product links here and here), but the Mac and TV don't seem to be recognizing each other - the TV registers no signal when the HDMI input is selected, and the Mac doesn't register a second display under the Display PrefPane. I'm assuming there's something wrong with the cable, but I've also read that it may be an issue with driver compatability in OSX 10.6.7. Any ideas?

Hey Corinthone, did you ever figure it out? I have a mid2007 iMac running snow leopard & a 120hz LGTV 42". I was having the same issues as you(yes Frankie, I made sure I was selecting the correct hdmi input). Now with the same setup, my LG recognizes the HDMI input from my iMac. It says connecting but then 'no signal' on the screen. The hdmi2 is still showing a connection in 'inputs' just no picture on TV. I started changed the setting via my mac but still nada. The lg is 120hz. Does that have anything to do with it? Thanks

Mini-DVI to HDMI output to Philips HDTV not working with Yosemite

I've recently upgraded to the Yosemite OS, and was surprised to find out that the output to my Philips HDTV no longer works. I have a Mini-DVI to HDMI converter, which I then plug into the TV. Before the upgrade everything worked fine (I think I was running 10.7), however now it just says "Video format not supported". I've tried every video format too...nothing seems to work anymore. With my friend's Windows laptop direct output via the HDMI port to the TV works fine, so it's not a hardware issue.
The Philips TV is an 8000 Series HDTV and I've already checked for the latest updates, but it says the software is up-to-date.
Anyone have a similar problem or know of any solutions???
Thanks in advance!

I would contact Phillips and see if they have a solution.
Ciao.

IMac mini DVI to HDMI problem?

Hi,
My iMac through mini DIV to HDMI doesn't detect a signal on my tv, I am running on a 24" early 2008 imac on lion 10.7.5. I've tried two different mini dvi to hdmi cables, two different tv's and different hdmi ports nothing seems to work. It detects my tv's and the screen flashes blue but has no signal each time, I am able to change the resolution etc of the tv's but it just stay black. I can set up a mini dvi to vga fine with my tv just not mini div to hdmi has anyone come across this issue?

yeah there is a setting called skip input it has the 3 ext and 3 hdmi, i tried skipping it but it to hdmi 3, which is the port tht it was connected too but it didnt work. Any more ideas?

Having a problem with mini dvi to hdmi. Can see the background, but must move all screens all the way to the right to see on tv. Any solutions?

I'm having an issue with setting up mini dvi to hdmi. I can connect and see the background picture from my macbook (approx 4 years old) but in order to see any screens or video, I have to move the screen almost all the way off the macbook display to the right. Any ideas why this would happen? Also, there is no audio, although when I bought the adapter and cable at the Mac store, they assured me it would handle both.

You have the display set in Extended Desktop mode. In System Preferences>Displays on the MacBook screen there should be an Arrangement tab when you have the MacBook hooked up to the TV and both screens working. When you click the Arrangement tab do you see two monitors side by side? One of them will have a Menu Bar at the top. Just click on the Menu Bar and drag it to the second monitor. That will makethe second monitor your main screen. You can now use your MacBook in ClamshellMode with a wired or Bluetooth keyboard and mouse. http://support.apple.com/kb/HT3131 When you disconnect from the TV your Menu Bar will automatically change back to the MacBook.
Or if you want to work on the MacBook screen while showing it on a TV you can check the Mirror Display box on the lower left hand side of the Arrangement tab under the two monitors box.
No Mini-DVI adapter can carry audio. The only MacBook that sends audio is the Mid 2010 model 7,1 through a Mini DisplayPort.
If you connect the MacBook using a Mini-DVI to HDMI adapter you will probably need to use external speakers or a 3.5mm stereo headphone jack to RCA sound plugs connected to a stereo system for audio if your TV doesn't have separate RCA input plugs for audio with the HDMI plug. The Mini-DVI to HDMI doesn't carry audio and there're no audio plugs on most TVs to work with HDMI since it's expecting audio with the HDMI.

Does the mini DVI port cary audio if using a Mini-DVI to HDMI Adapter?

Hello everyone,
I've heard it is possible for a DVI port to transmit audio data to a HDMI connection if a DVI to HDMI cable is used, which will allow the sending of both audio and video to your TV. see: http://en.wikipedia.org/wiki/DigitalVisualInterface
I'm assuming this is not possible using apples mini DVI port, but just wanted to check to make sure. My main goal is to get surround sound out of my powerbook. To do this by simply adding a Mini-DVI to HDMI Adapter would be GREAT!

Hi Jonathan,
I'm assuming this is not possible using apples mini DVI port
Yup, no audio, unfortunately. The audio will have to transmitted separately via the analog audio output.
Yang

My macbook pro no longer connects to my TV with the mini dvi to hdmi adapter. A while ago the computer fell down and hit the cable. How can I tell if the computer is working ok. Doesn't show mirroring any more.

My macbook pro no longer connects to my TV with the mini dvi to hdmi adapter. A while ago the computer fell down and hit the cable. How can I tell if the computer is working ok. Doesn't show mirroring any more. Was working while watching a movie but when I pulled it out from the computer and put it back in the system would no longer mirrorr the screen on the TV.

The best option is an appointment at an Apple store genius bar. The evaluation will be for FREE!
Ciao.

Mini-DVI to HDMI Issues

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