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  1. #1
    arthurlewis
    Guest
    No Signal To Monitor
    My G4 is no longer sending a signal to the monitor. All was OK sunday evening. Turned off the monitor overnight and in the morning the monitor displayed only 'NO SIGNAL' message. Has my graphics card blown (standard APPLE AGP supplied) or is it something more fundamental? I do not have another MAC available to me to test this theory, which is the problem.

    I have tested the monitor on a different machine (Windows laptop) and it works fine.

    Any thoughts welcomed

  2. #2
    No Signal To Monitor
    rman's Avatar
    Member Since
    Dec 24, 2002
    Location
    Los Angeles, California
    Posts
    12,584
    Specs:
    2 x 3.0GHz Quad-Core, 6GB OS X 10.6.8 | 15in MacBook Pro 2.2GHz OS X 10.6.8 | 64GB iPad 2 WiFi
    Cool
    Since you have test the monitor and ruled it out. That leave two items to check, the cable and the card. Unless the cable was loose, or has some 90 degree bends in it, I would think the video card may have gone out.
    Life isn't about waiting for the storm to pass, It's about learning to dance in the rain!

  3. #3
    EvoMac
    Guest
    Make sure that the port is firmly inserted into the slot (PCI or AGP?). If the video card is PCI try inserting it into another slot to confirm that its not the slot on the logic board that went bad.

  4. #4
    arthurlewis
    Guest
    Cable was fine. Card is AGP. Do graphics cards have a habit of dying so young?

  5. #5
    No Signal To Monitor
    jhelm007's Avatar
    Member Since
    Oct 18, 2004
    Location
    Norfolk, VA, USA
    Posts
    629
    Specs:
    MacBook: 2GHz, 2GB RAM, 120GB HD; PowerTower Pro (300MHz G3 clone): 608MB RAM, 10GB HD
    Quote Originally Posted by arthurlewis
    Cable was fine. Card is AGP. Do graphics cards have a habit of dying so young?
    This sounds stoopid, but have you re-booted the 'puter with the monitor turned on and hooked up? There is an anoying habit of macs not booting up properly if they don't detect a display sometimes. That's my only idear... good luck.

  6. #6
    No Signal To Monitor
    rman's Avatar
    Member Since
    Dec 24, 2002
    Location
    Los Angeles, California
    Posts
    12,584
    Specs:
    2 x 3.0GHz Quad-Core, 6GB OS X 10.6.8 | 15in MacBook Pro 2.2GHz OS X 10.6.8 | 64GB iPad 2 WiFi
    Cool
    The above sounds so simple, I bet you it will work.
    Life isn't about waiting for the storm to pass, It's about learning to dance in the rain!

  7. #7
    No Signal To Monitor

    Member Since
    Feb 06, 2005
    Posts
    22
    Quote Originally Posted by rman
    The above sounds so simple, I bet you it will work.
    I have a PC with the same problem which went back to the factory for repair yesterday afternoon. The tech on the phone had me do few things for him, and then determined that the problem isn't the graphics card, but rather the power supply. Not sure how to check on a Mac, but wouldn't invest in a card without checking the power supply first.

    Good luck with the reboot. I hope that works for you.

  8. #8
    No Signal To Monitor
    jhelm007's Avatar
    Member Since
    Oct 18, 2004
    Location
    Norfolk, VA, USA
    Posts
    629
    Specs:
    MacBook: 2GHz, 2GB RAM, 120GB HD; PowerTower Pro (300MHz G3 clone): 608MB RAM, 10GB HD
    Quote Originally Posted by arthurlewis
    Cable was fine. Card is AGP. Do graphics cards have a habit of dying so young?
    It took my rage 128 pro about 3 years to go bad.

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