No display on laptop screen

I have an IBM ThinkPad t20, and I have to use my desktop screen with svga cable to see display, will not display on laptop screen.Can anyone tell me how to fix this.
13 answers Last reply
More about display laptop screen
  1. You've tried the crt/lcd function button and display only shows up on crt?
    Then it's the cable to your screen, or a bad screen.
  2. press Fn+F7 a few times. othersie its a faulty screen or bad connection/wiring
  3. mhelm1 said:
    You've tried the crt/lcd function button and display only shows up on crt?
    Then it's the cable to your screen, or a bad screen.

    My screen was working before I reinstalled Windows XP, and I don't know what you mean by crt/lcd function button.
  4. FN+F7 on my ibm thinkpad r50. do you have the graphics drivers installed?
  5. and the ibm "hotkey" drivers?
  6. shovenose said:
    FN+F7 on my ibm thinkpad r50. do you have the graphics drivers installed?

    Ok I pressed FN+F7 and its displaying but its very fant I can hardly see it
  7. ok then ur backlight is shot. try pressing those buttons some more. :)
  8. and try turning up the brightness
  9. Hey, but sorry to tell you but your LCD Invertor needs to be replaced. Easy job and not expensive if you do it your self
    This is what you need:
    http://cgi.ebay.co.uk/IBM-THINKPAD-T20-14-LCD-INVERTOR-BOARD-IBM1-/170478428568?cmd=ViewItem&pt=UK_Computing_LaptopAccess_RL&hash=item27b14e6198

    Around £15 for the part. It is held under the plastic at the bottom of the Laptop screen. 2 or 3 wire plugs hold it in.
    If you need instructions let us know.
    Best of luck
  10. shovenose said:
    and try turning up the brightness

    How do I turn the backlite back on, and it was working befor I reinstalled Windows
  11. well if its broken theres nothing that can be done short of replacing the screen. but try FN+HOME (top right)
  12. Hey, see my previous post... Sounds like the Invertor is shot.... not the screen. You don't need to replace the screen if the invertor is bust.
    Just replace the faulty part. Here's the part you need:http://cgi.ebay.co.uk/IBM-THINKPAD-T20-14-LCD-INVERTOR-BOARD-IBM1-/170478428568?cmd=ViewItem&pt=UK_Computing_LaptopAccess_RL&hash=item27b14e6198
    The invertor converts the battery voltage into the high power voltage needed to power the backlight. It's usually a capacitor that has blown on the invertor circuit board. At £15 for a new LCD Invertor it is a cheap fix
  13. Thank you all for the help and the link I will be ordering one or maby two.
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