Results 1 to 13 of 13
  1. #1


    Member Since
    Apr 02, 2008
    Posts
    67
    MacBook Pro to Vizio 42" LCD (RGB input) via DVI-VGA results in "No Signal"
    All the info is in the subject. When I plug it in, the MBP screen flashes solid blue and then to regular mode. In the past it does this and then shows up on screen but it hasn't been doing that for the past week. I haven't swapped out my VGA or DVI to VGA cables. Any ideas from anyone with the same TV type and connections know how to fix this?

    I am running the current Leopard version.

  2. #2

    cwa107's Avatar
    Member Since
    Dec 20, 2006
    Location
    Lake Mary, Florida
    Posts
    26,947
    Specs:
    15" MBP, Core i7/2GHz, 8GB RAM, 480GB Crucial M500 SSD
    Make sure you plug the DVI-VGA adapter in while the VGA cable is connected to it. I've run into the same thing when connecting just the DVI adapter and then subsequently connecting the VGA cable to it.
    Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!

    https://youtu.be/KHZ8ek-6ccc

  3. #3


    Member Since
    Apr 02, 2008
    Posts
    67
    I haven't separated them since it worked last time, or at least not that I can remember. Maybe I should unplug it all and then reconnect everything in this sequence:

    1. VGA to DVI-VGA connector
    2. VGA into my RGB input on the TV
    3. DVI cable into DVI port on MBP

    Does it matter when I plug teh attached audio cable?

  4. #4

    cwa107's Avatar
    Member Since
    Dec 20, 2006
    Location
    Lake Mary, Florida
    Posts
    26,947
    Specs:
    15" MBP, Core i7/2GHz, 8GB RAM, 480GB Crucial M500 SSD
    Quote Originally Posted by zimbu1234 View Post
    I haven't separated them since it worked last time, or at least not that I can remember. Maybe I should unplug it all and then reconnect everything in this sequence:

    1. VGA to DVI-VGA connector
    2. VGA into my RGB input on the TV
    3. DVI cable into DVI port on MBP

    Does it matter when I plug teh attached audio cable?
    OK, sounds like you're using an RGB connector on your TV and not a VGA. I have no experience with doing this, so I can't accurately guide you here.

    On my TV, there is a VGA connector. What I do is leave the VGA cable attached to the TV all the time. Then I connect the VGA to the VGA to DVI adapter, then plug the whole thing, already connected, into my MacBook Pro's DVI port. The MacBook pro discovers it automatically and outputs the display. I have had instances where it did not, for whatever reason, but I can usually force it through System Preferences => Displays.

    The audio cable should not make a difference either way.
    Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!

    https://youtu.be/KHZ8ek-6ccc

  5. #5

    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    28,981
    Specs:
    iMac 2010 27" QuadI7 OSX10.11, iMac 2008 OSX10.11, MBP Late2011OSX10.11 , iPad Air, iPhone 3GS
    A close friend of mine has a Vizio 42" LCD. It does have a VGA Input. That is how he hooks up his computer to the Vizio and it's always worked great.

  6. #6


    Member Since
    Apr 02, 2008
    Posts
    67
    Maybe I am phrasing it wrong. It is RGB (a PC input). I have attached photos. This is how I have always connected it to my MBP. Also, I went to System Properties and it sees the TV as a second display but it won't send the signal. I have clicked on every setting and tab in there!!

    Its a VW42L - 42" Class LCD Vizio 1080p HDTV
    http://www.vizio.com/productDetails....=1664&pid=1504

    Can anyone please help me? I rip DVDs to my mac and then watch them this way. I am desperate!!
    Attached Images Attached Images

  7. #7

    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    28,981
    Specs:
    iMac 2010 27" QuadI7 OSX10.11, iMac 2008 OSX10.11, MBP Late2011OSX10.11 , iPad Air, iPhone 3GS
    That is the right jack on the Vizio. Was just being sure. I wonder if maybe your VGA to DVI adapter is messed up?

  8. #8


    Member Since
    Apr 02, 2008
    Posts
    67
    Lucky for me, I found the same VGA to DVI adaptor at work in an empty conference room which is odd since its completely a PC environment. No guarantees that it works but I am going to bring it home and try it. I also have a new VGA cable to use as well.

    I will report back. Thanks for your help.

  9. #9


    Member Since
    Apr 02, 2008
    Posts
    67
    For anyone that cares, I changed my VGA cable and that seemed to resolve this issue. Let's see if it happens again with a new cable. If it does it would probably mean that the TV or MBP are damaging these cables somehow.

  10. #10


    Member Since
    Oct 21, 2008
    Posts
    1
    I'm doing the same (DVI to VGA from macbook pro) and the TV monitor shows my background wallpaper but not anything else! So the computer output is getting through but not the right output. Any ideas? Is this a mac "user" issue?

  11. #11


    Member Since
    Nov 12, 2008
    Posts
    1
    Quote Originally Posted by jwright777 View Post
    I'm doing the same (DVI to VGA from macbook pro) and the TV monitor shows my background wallpaper but not anything else! So the computer output is getting through but not the right output. Any ideas? Is this a mac "user" issue?
    I imagine that you have the displays set up to extend the desktop rather than "mirror." Check the mirror box in your display preferences.

  12. #12


    Member Since
    Oct 09, 2009
    Posts
    1
    I'm having a VERY similar problem... so did replacing the cable do the trick permanently?

  13. #13


    Member Since
    Feb 16, 2010
    Posts
    1
    Why not use the HDMI?
    You have a div out on your Mac, why not just use the HDMI ports? I am assuming you have HDMI ports, but if you do then just use an adapter.

    Cables Unlimited - Video adapter - Male 19 pin HDMI Type A to FeM DVI

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Hanns-G monitor message "input signal out of range"
    By cegelhoff in forum OS X - Operating System
    Replies: 4
    Last Post: 08-12-2015, 09:32 PM
  2. macbook pro + 27" thunderbolt display + 20" ACD (DVI) = TRUE??
    By vacholino in forum Other Hardware and Peripherals
    Replies: 2
    Last Post: 07-26-2011, 08:03 PM
  3. DVI to VGA cable for 13" Macbook aluminum?
    By jkpangie in forum Apple Notebooks
    Replies: 1
    Last Post: 11-30-2009, 08:38 AM
  4. MacBook Pro to 37" 42" or LCD TV
    By cibsrpsych in forum Other Hardware and Peripherals
    Replies: 8
    Last Post: 04-28-2008, 05:08 PM
  5. would like your input "lcd monitor"
    By starfox101 in forum Switcher Hangout
    Replies: 0
    Last Post: 04-09-2006, 11:37 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •