my DELL N5110 felt on the ground and broke the screen.
All the screen is white and it dims after a while doing nothing.
Fortunately, I have a monitor and I can use laptop with it.
PROBLEM:
The computer is beeping due to screen error (8 times again and again) and I don't know how to turn this sound off.
It's beeping from speakers.
Now I'm using Linux Ubuntu 12.04
Best Answer
8 Beeps is definitely to do with the monitor not functioning correctly. Since you haven't mentioned this yet, is the monitor physically broken or just 'not working'? If it's not physically broken, it probably just has a loose cable. Judging by the amount of posts about this it could be a common issue with this model as you can see below.
I found a Dell Community thread regarding this topic with a couple methods mentioned that you could try if you feel up to it.
Here are some of the suggestions users have come up with in that thread:
Here's another:
And finally, an entire Dell Community tag dedicated to the N5110 White Screen 8 Beeps issue.This tag only has one post.If you feel up to opening up your laptop the Dell Service Manual should provide you with enough information on how you can check the monitor cable.