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    I no longer get a display on my laptop screen

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by chomper, Dec 13, 2012.

  1. chomper

    chomper Notebook Consultant

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    Just lastnight my screen went to sleep and turned black cause i left it on for awhile. I went ahead and closed the lid. turned it on this morning and screen is still black from sleeping. I hit enter, tried hitting the windows key to get its attention to display again and does nothing. I even held down the power button and turned it completely off. then waited afew mins to turn it back on and i still get a black screen.

    I tried hooking it up to my monitor to see if i Can get a display that way and nothing pops up.. I even have it hooked up to the AC to make sure its got enough power to boot up. it powers on, just no display. the caps lock button keep blinking. I dont know what that means.

    what other options do I have to check this ? its an Older HP dv7
     
    chomper, Dec 13, 2012
    #1
  2. Peon

    Peon Notebook Virtuoso

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    First of all, try connecting it to an external monitor or HDTV and see if anything shows up.
     
    Peon, Dec 13, 2012
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  3. chomper

    chomper Notebook Consultant

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    I already mentioned I tried that, and still no display. its like its stuck in the sleep mode display, but its still running.
     
    chomper, Dec 13, 2012
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  4. smellon

    smellon Notebook Evangelist

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    Try forcing it to shut down, then remove the battery for a few minutes, and then restart it.

    If that doesn't work, it could be a dead GPU. It sounds like what happened to my old xps m1530 with a 8600mgt.
     
    smellon, Dec 13, 2012
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  5. HTWingNut

    HTWingNut Potato

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    Caps Lock blinking is a common issue with HP's. Shut down, remove AC, remove battery, hold the power button down for 30 seconds, make sure it's AT LEAST 30 seconds, and don't let up. After 30+ seconds let go of power button then plug everything back in and power on. You will likely have to reset your BIOS clock and all BIOS settings will revert to default.
     
    HTWingNut, Dec 13, 2012
    #5
  6. Prostar Computer

    Prostar Computer Company Representative

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    These have a common overheating issue, but since it was asleep, that hopefully isn't the case. Try refreshing it (figuratively) using the steps HTWingNut mentioned: Remove battery and AC adapter, and any devices connected; wait 30 seconds to 1 minute; plug AC adapter or battery back in, and attempt to boot it up.

    If that doesn't work, you can try removing the battery and AC adapter again, and open up the case to get to the CMOS battery. If it's under warranty, this will void it. Remove the battery, wait 30 seconds, pop it back in, reassemble the unit, and try starting it again.

    Happy trails!
     
    Prostar Computer, Dec 13, 2012
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  7. chomper

    chomper Notebook Consultant

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    I tried that, and still nothing. I have an ati 5470 dedicated card set as the primary. even if that went out, I should still get a display from the integrated graphics.
     
    chomper, Dec 13, 2012
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  8. HTWingNut

    HTWingNut Potato

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    Do it a few times, or remove your CMOS battery for a good several minutes. Sometimes it took me a few times to get it to "take". But removing the CMOS battery with all other power sources removed for a half hour did the trick every time.
     
    HTWingNut, Dec 13, 2012
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  9. chomper

    chomper Notebook Consultant

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    2012-12-15 00.43.23.jpg Ok Im kind of a nooby with Laptop parts. ive only changed the ram before. where is the CMOS battery ?
     
    chomper, Dec 15, 2012
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  10. JOSEA

    JOSEA NONE

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    JOSEA, Dec 15, 2012
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  11. mattcheau

    mattcheau Notebook Deity

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    it's the lithium battery partially covered by yellowish cellophane (???) underneath the microsoft certificate of authenticity sticker.
     
    mattcheau, Dec 15, 2012
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  12. chomper

    chomper Notebook Consultant

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    Ok I removed it for awhile, put it back in and no sucess.
     
    chomper, Dec 15, 2012
    #12