![]() ![]() You push the power button, the power light starts to show up, the fan is running, the drive is moving, and bamm!! there is still nothing comes up on the screen and the display remains blank. And I know it’s kind of hard to take, to find your laptop just broke down in the middle your happy life. Dunno if it is in your case, but it's worth fiddling with.Fixing Laptop ’ s Black Blank Display ProblemĮverybody hates to look at a black blank display on their systems startup. However, no degree of that will be enough if the backlight is grossly underprovisioned. ![]() You should be able to play with your monitor setting to set the overall brightness down, taking a load off of the backlight in general. SO if you are displaying dark scenes for a very long time, the controller will have to "give up" on over-volting the backlight when it overheats, causing a sort of periodic shift between bright and dark. What it is instead is cheap with a green disguise (as most of these things are). This is usually paired with underprovisioning the backlight as a method of being "green". The idea being that most of the time people will not be using it to display very dark scenes for long periods of time. ![]() Some manufactures adaptively vary the backlight to have more current during very dark display times (mostly black) and less backlight current during mostly white displays. You're experiencing a common technique used to preserve the life of underprovisioned backlights in CCFL and LED monitors. ![]()
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