There is a laptop - Dell Inspiron 1545.
A problem is a brightness of a screen is 0% (when BIOS starts, Windows works - all time). I can barely see a picture on a screen at a big angle (it seems like the screen doesn't work totally). The screen doesn't have the power.
BIOS doesn't report any errors.
You can see that 0% brightness effect if you have a turn off screen button on your laptop. Try to turn of and you must see a picture on a screen anyway but at a very big angle.
How can I fix this issue?