The LCD screen on my Toshiba Satellite A100-011 laptop suddenly went black. Since the backlight is still working, and I have image on an external monitor (see below), I'm assuming it is broken.
Meanwhile, I am unable to boot normally into Windows 7. The external monitor goes black right before the logon screen, when display drivers are loaded. To work around this issue, I renamed the Nvidia driver in C:\Windows\System32\drivers\nvlddmkm.sys from Safe Mode, and now the system boots normally, but with the generic display drivers.
What prevents me from booting normally with the external monitor using the Nvidia drivers?
- The internal display is always blank, it's almost sure it is faulty.
- The internal display is not detected, i.e. in "display settings" there is only one display, the external one
- I can't select VGA only output from BIOS, my only options for Power on display are "Auto" and "LCD+analogRGB" (which I think it means to power both displays)
- If I select "LCD+analogRGB" a weird thing happens: the BIOS gets shadowed by Windows! The first time I did it I freaked out since I couldn't access the BIOS any more; finally succeeded by mashing the F keys but don't know which one actually did the trick.
- I really need to load the normal drivers. The generic ones support only 16bit colors and prevent Windows from entering sleep mode!
- Graphics card: Nvidia GeForce 7600