Trouble Shooting No Video On Computer

Discussion in 'Windows 10' started by uffbros, Nov 28, 2017.

  1. uffbros

    uffbros MDL Senior Member

    Aug 9, 2010
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    I got a new computer. The old computer was perfectly fine when I unhooked it from monitor. I took it to another spare monitor to hook it up to do a clean install of Windows in order to sell it.When I hook it up to monitor I have no video. The video card is onboard so it can't be loose from moving computer 100 feet from upstairs to downstairs. The cables are fine as well because when I hook the monitor up to my laptop's VGA port I have video. To me this eliminates monitor and cables. How could the video port go bad in this move? The computer is an I5 and still very fast. I doubt the power supply on these HP's would handle any kind of dedicated graphics cards from what I have read. The computer is an HP Pro 3500. Could it be that video port for no reason by just unhooking and rehooking it up lose the video? Doesn't make sense to me. Anyone?
     
  2. pisthai

    pisthai Imperfect Human

    Jul 29, 2009
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    Have you tried to connect the 'old' Monitor back onto that machine? If not, I would try that first!

    If that works, is the cable used the same you used with the 'spare' Monitor?

    If the connection change from VGA to DVI or even HDMI, that could sometimes not work directly and may need to go into the Menu Settings of the monitor to adjust the correct settings!
     
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  3. uffbros

    uffbros MDL Senior Member

    Aug 9, 2010
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    the monitor works when I plug the vga cable into a laptop..when I plug same cable into the desktop it doesn't work..That would eliminate the cables and the monitor...Right?
     
  4. pisthai

    pisthai Imperfect Human

    Jul 29, 2009
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    Normally YES! Just curious, if you have a DVI Cable, I would suggest trying that first! And depending on the Graphic Card, and the Monitor (for sure), you could even check with an HDMI Cable if possible!

    Also, try a different PCI/PCIe slot on the Mainboard if possible!

    If none of that works, It's possible that the Graphic Card has some Problem or even the Chip Set on the MB!

    What are the model of the MB (Model No)? And the Graphic Card? Without to have such info, it's not very easy to help!!
     
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  5. Snuffy

    Snuffy MDL Expert

    Jan 7, 2008
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    some times the monitor has more than one hdmi port check ports. mine hdmi 1 is Display to hdmi and hdmi 2 is hdmi to hdmi
     
  6. Michaela Joy

    Michaela Joy MDL Crazy Lady

    Jul 26, 2012
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    The OS might be set to a higher resolution / refresh rate than the monitor can handle.

    If so, the Monitor would shut down.

    Can you get to the Monitor menu? See what its' set up for?
     
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  7. uffbros

    uffbros MDL Senior Member

    Aug 9, 2010
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    The computer is not even booted to windows yet and no video.....When you attach the VGA with computer off the monitor screen goes from testing mode like when you unplug it to nothing
     
  8. dhjohns

    dhjohns MDL Guru

    Sep 5, 2013
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    With the "bad" monitor plugged in, boot to windows. Once you have given it enough time unplug monitor from wall, and computer, then plug back in. Or else, load Windows up with a monitor you know works, then switch out with windows still up and running.
     
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  9. WindowsGeek

    WindowsGeek MDL Senior Member

    Jun 30, 2015
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    Sounds like a bad monitor
     
  10. uffbros

    uffbros MDL Senior Member

    Aug 9, 2010
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    Can't be monitor...read above....Monitor works plugged into laptop VGA
     
  11. pisthai

    pisthai Imperfect Human

    Jul 29, 2009
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    It still could because is connected to a different machine!

    This would be a 'fruitless' discussion as long as you do not post ALL relevant hardware info include the type of cable used on different machines!
     
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