Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I recently installed Windows 7 on a Toshiba Satellite laptop. After updating, my machine would start but the screen remained off.

I was able to fix this by connecting an external monitor. The external monitor worked and I boot into Linux and everything worked fine. I was able to disconnect the external monitor and boot normally.

Now I'm having the same problem, but the original fix is not working. The external monitor status black. If I press any buttons on the monitor, it says it's in sleep mode.

I've tried every combination of holding in the power button, booting with and without the battery, etc.

Any suggestions?

share|improve this question
May be, BIOS reset will help somehow? Don't know how you can do this on your laptop. Is there a battery on motherboard? try to remove it for several minutes. – Maximus Jul 22 '12 at 10:18

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.