Screen on Toshiba Satellite A215 goes blank

I have a problem with my Toshiba Satellite A215 laptop. The screen goes blank intermittently. I know this is not related to settings because the screen goes blank even when I’m working on the laptop or watching a movie. Do you know what is wrong and how I can fix this problem with my laptop?

First of all, find out which version of BIOS you have installed on your laptop, then go to the Toshiba website and find out if they have more recent version available for downloads. I’ve seen this problem with Toshiba Satellite A215 laptops before and it looks like Toshiba addresses this issue in the latest BIOS release. They do not explain what exactly is wrong but the BIOS change history says: “Corrected an intermittent black screen issue”.Update the BIOS and see if it fixes your problem.
If the problem is still there and the screen still goes blank, apparently there is something wrong with the inverter or backlight.