getting no signal between my g4 and new 26" dynex flat panel tv

Discussion in 'PowerPC Macs' started by pearhouse, Jul 17, 2010.

  1. pearhouse macrumors newbie

    Jul 17, 2010
    I just bought a Dynex 26" flat panel tv and hooked it up to my mac g4 using VGA cord. I selected VGA as the input with the TV's remote, but after the initial Apple icon shows up when I start the Mac, the TV then displays the "No Signal" box. I do not have the TV hooked up to my digital cable box, as I have no connectors for that. I only want to use it for my Mac. Thanks for any help.
  2. mgartner0622 macrumors 65816


    Jun 6, 2010
    Colorado, USA
    If you have two display ports I would reccomend going into the display prefrences and changing the setup on another screen while your TV is still attached.
  3. Bennieboy© macrumors 65816


    Jan 15, 2009
    what graphics card are you using for this? it could be the case that the card isn't upto spec for running a screen that size
  4. No ice please macrumors 6502

    Nov 21, 2009
    I have the same TV. The first time I hooked my computer up to it said this. Whats wrong is that VGA shoots signal at the TV at 1074 by something and the TV won't display that. Only it's full resolution, so what you need to do is hook up a second monitor and the tv. Adjust the resolution for the TV and there you go.
  5. pearhouse thread starter macrumors newbie

    Jul 17, 2010
    works now

    Thanks for the suggestions. What ended up making it was was restarting the Mac several times, then turning the tv off and on a few times. Eventually the computer became visible and all remains well any time I boot up the first time each morning - AS LONG AS I let the Mac boot up entirely BEFORE I turn on the TV.

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