dim

Good day all, so I am using an acer aspire a315-51. My laptop screen when the system is powered off and plugged in shows a dim light towards the bottom of the screen. What could be wrong with it. This is my first time asking a question on this forum, so forgive me if I did not phrase this issue...

My laptop has been acting up since around 2 days ago. So my laptop will work normally, until I leave for a bit and it dims from inactivity. When it dims and I shake the mouse, keypad, or press buttons on the keyboard it won't respond, it'll keep that grey/dim screen and then I have to restart...

I have a Dell Precision m6400 that has a very dim image when powered on. Cannot see what's on the screen unless it's powered on. I've replaced the inverter and the screen. But the problem is unsolved. I think maybe it's the ribbon cable or mother board. There is a possibility the inverter is a...