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Broken screen unable to display BIOS on VGA.

nat1639 -  
 Kendar -
Hello,
I got a laptop with a broken screen, and I would like to access the BIOS to change some settings. However, the VGA output is activated after Windows starts.

It's a DELL Latitude, so I tried pressing F2 to enter the BIOS; I think I'm there because Windows doesn't start. However, even by pressing the touchscreen, the monitor doesn't respond. The laptop screen goes off, but nothing changes on the monitor.

I've found a few posts on this topic, but there are no answers, and otherwise, the subjects are the reverse (the boot works, and once in Windows, it stops working).

Thank you for your help.

Configuration: Windows 7 / Chrome 33.0.1750.154

14 answers

  1. nat1639
     
    Yes, Fn F8 is the "touchscreen," the PC screen turns black and the VGA screen remains without a signal.
    1
  2. marmadas Posted messages 108 Status Member 1
     
    It's probably simplistic, but can't you connect a second screen?
    0
  3. nat1639
     
    That's what I did, the secondary screen is in VGA and the main one is cracked, only the backlight works.
    0
  4. phil2k Posted messages 10841 Registration date   Status Contributor Last intervention   2 339
     
    Hello

    You need to press Fn-F8 (the fn key + the key with the drawing of two screens).
    It should switch to the external screen.

    In any case, it works on mine..

    "To fix something that doesn't work or makes too much noise, you just need to hit it with something that works better or makes more noise." The Shadoks
    0
  6. phil2k Posted messages 10841 Registration date   Status Contributor Last intervention   2 339
     
    What model is it, in terms of latitude?

    --
    "To fix something that doesn't work or makes too much noise, you just need to hit it with something that works better or makes more noise." The Shadoks
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  8. nat1639
     
    Ah finally I found a solution, I simply unplugged the laptop screen and the PC transmits the image right from startup on the VGA so I can see the BIOS. It's not even necessary to manipulate the touchscreen (Fn+F8).

    Thank you for your help, hoping this can help some others.
    0
    1. Kendar
       
      Thank you, you saved my life. I hadn't thought of physically unplugging the screen, brilliant idea, you're a king... :-)
      0
  9. phil2k Posted messages 10841 Registration date   Status Contributor Last intervention   2 339
     
    Good idea.
    But it's strange that FN-F8 doesn't work.
    I have an E6410, and it works perfectly....

    --
    "To fix something that isn't working or is too noisy, you just need to hit it with something that works better or makes more noise." The Shadoks
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  10. nat1639
     
    Even during startup with the DELL logo?
    From what I've seen, the screen function makes a copy of a functional screen; maybe the problem came from that.
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  11. phil2k Posted messages 10841 Registration date   Status Contributor Last intervention   2 339
     
    Yes, at startup. I can go into the BIOS

    --
    "To fix something that doesn’t work or is too noisy, you just need to hit it with something that works better or makes more noise."
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  12. nat1639
     
    So I think it's really the problem with the defective screen that prevents duplication, unless your screen is dead too.
    0
  13. phil2k Posted messages 10841 Registration date   Status Contributor Last intervention   2 339
     
    No, my screen works fine....
    --
    "To fix something that doesn't work or is too noisy, you just need to hit it with something that works better or makes more noise."
    0
  14. Flogger Posted messages 1695 Status Member 238
     
    And by closing the laptop lid? In principle, it automatically switches.
    0
  15. nat1639
     
    I haven't tried that, I thought it would go into sleep mode.
    0
    1. Flogger Posted messages 1695 Status Member 238
       
      Yes, if no external screen is connected. But when a screen is plugged into the external port, it should switch and not go into sleep mode.
      0
    2. phil2k Posted messages 10841 Registration date   Status Contributor Last intervention   2 339
       
      I confirm.
      0