Everything you need to know about Amilo and Lifebook laptops by Fujitsu

Lid-close detection

Display problems, black screen, TV-Out,...

Lid-close detection

Postby mohannad_ibrahim » Mon Mar 23, 2009 6:45 pm


I have Amilo M1425 laptop and I started to have this problem for 3 days:

When I open the screen normally (90 degree) the screen is very dim (similar to the famous inverter problem) but when I change the screen angle (around 45 degrees:lid half-closed) the backlight returns normal (in fact, I am writing this message under such viewing angle !!!).

What I think is the lid-close detector (which functions normally to turn off the backlight when it detects lid closing to save power) is malfunctioning and is detecting lid closing even though it is still open so it turns the baclight off.

Now I need you to test my theory but I don't know the lid-closing detector mechanism in amilo M1425 notebook, which in other notebooks is a small pin near the hinge. So anyone an help me here?!

Thanks in advance
Posts: 2
Joined: Mon Mar 23, 2009 6:30 pm

Re: Lid-close detection

Postby hikaru » Tue Mar 24, 2009 12:02 pm

In newer notebooks the pin is replaced by a magnetic switch. I'm not sure where it is located but it should be somewhere in the case where the display frame touches it. If you have a small magnet you can check it.
User avatar
Posts: 1153
Joined: Thu Oct 25, 2007 9:23 am
  • Amilo Si 1520
  • Desktop
  • Asus EEE 901

Re: Lid-close detection

Postby mohannad_ibrahim » Tue Mar 24, 2009 7:50 pm

Yes thank you. I found the magnet and removed it completely as a test but only had partial(<=80 degree is working, >80 not) solution to the problem and i need to check something else for a solution!
Posts: 2
Joined: Mon Mar 23, 2009 6:30 pm

Return to Graphics, display

Who is online

Users browsing this forum: No registered users and 0 guests