SOURCE: TV won't recognize signal from a DVI to HDMI input adapter
I had a similar problem with a Mac Mini. The problem was caused by a mix-matched resolution (the Mac tries to use 75Hz refresh rate, TV expects 60Hz). The best solution I found was to remote into the Mac (I used LogMeIn.com) and change the resolution on the Mac from a remote computer until the image appears on screen.
Process:
1) Connect Mac to a normal monitor and install the LogMeIn server (or other VNC type application)
2) Connect the Mac to the TV
3) Connect to LogMeIn from another computer (preferrably one where you can see the TV)
4) Go to Applications / System Preferences / Display
5) Change the resolution to your TVs native resolution, and change the refresh rate to 60Hz
SOURCE: Macbook Pro DVI---> HDMI + Digital Optical Out = Problem w/ Sound
On the Sony The HDMI takes "priority" over all others, that's why you loose audio. If you run your DVI/HDMI to the TV and optical to the soundbar that would fix your issue. If your TV does not have Multiple HDMI inputs, you can get a DVI/Component adapter for your MBP then run it to the TV, or, If you have to have HDMI just to have HDMI, you can get a 2:1 HDMI switch and still have optical to your soundbar. Make sense? If youneed more help, just post a comment and I'll help some more.
SOURCE: Macbook - Lg TV
Take a look at these discussions:
http://macosx.com/forums/hardware-peripherals/304718-connecting-macbook-lg-hdtv-rz-32lz55.html
http://discussions.apple.com/thread.jspa?threadID=1398546
Maybe a solution.
Good luck.
K.
SOURCE: can i connect my ps3 via hdmi port to component on my tv
You can get a PS3 adapter cable to hook up to the AVI 4 imput on your Magnavox projection TV (the green, blue and red video and red and whit audio HD imputs) You will have to change the dispay settings to 480p (that is the HD level of the TV). it is a bit tricky because you will have to start in the non HD imput, change the setting (the screen will go blank for 30 seconds) so VERY quicky unplug the yellow, red and white cable from the PS3 and plug in the HD cable. then press the X button or right on the direction pad and the setting should change over. switch to the AVI 4 imput and you should be good to go
TIP: have the HD cable plugged into the TV already to make it quicker so you just have to change the cable in the PS3...a bit of a silly process, but it should work.
TIP2: you can get the cable needed at blockbuster, future shop or best buy.
Good luck!
SOURCE: I am trying to connect my macbook pro computer to
On the MacBook, check the Displays pane in System Preferences to make sure the settings for the external monitor are correct. It's possible that the system is not recognizing the adapter or it has the wrong resolution setting, so it's not sending out any signal that the adapter can use.
Many of the better DVD players and high-end video game consoles use HDMI. You can use one of those as a test signal generator to check the TV.
You may get better results if you use a DVI-HDMI converter, although you would need to get the DisplayPort to DVI cable. This will avoid converting to analog VGA signals and back to digital again.
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